Document and Entity Information - shares	6 Months Ended
Document and Entity Information - shares	Jun. 30, 2018	Aug. 01, 2018
Entity Registrant Name	REGENCY CENTERS CORP
Entity Central Index Key	0000910606
Document Type	10-Q
Document Period End Date	Jun. 30, 2018
Amendment Flag	false
Document Fiscal Year Focus	2018
Document Fiscal Period Focus	Q2
Entity Well-known Seasoned Issuer	Yes
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		169,435,706
Partnership Interest [Member]
Entity Registrant Name	REGENCY CENTERS LP
Entity Central Index Key	0001066247
Entity Filer Category	Accelerated Filer

Consolidated Balance Sheets - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Real estate investments at cost:
Notes receivable	$ 0	$ 15,803
Parent Company [Member]
Real estate investments at cost:
Property, Plant and Equipment, Gross	10,752,552	10,578,430
Properties in development	164,001	314,391
Gross real estate investments at cost	10,916,553	10,892,821
Less: accumulated depreciation	1,433,120	1,339,771
Total Cost Net of Accumulated Depreciation	9,483,433	9,553,050
Investments in real estate partnerships	451,220	386,304
Net real estate investments	9,934,653	9,939,354
Real Estate Held-for-sale	102,163	0
Cash and cash equivalents	37,151	45,370
Restricted cash	6,089	4,011
Tenant and other receivables, net of allowance for doubtful accounts and straight-line rent reserves of $14,790 and $12,728 at June 30, 2018 and December 31, 2017, respectively	155,540	170,985
Deferred Costs, Leasing, Net	83,686	80,044
Acquired lease intangible assets, less accumulated amortization of $188,246 and $148,280 at June 30, 2018 and December 31, 2017, respectively	432,951	478,826
Other assets	429,497	427,127
Total assets	11,181,730	11,145,717
Liabilities:
Notes payable	3,118,002	2,971,715
Unsecured credit facilities	713,498	623,262
Accounts payable and other liabilities	215,300	234,272
Acquired lease intangible liabilities, less accumulated amortization of $75,179 and $56,550 at June 30, 2018 and December 31, 2017, respectively	517,018	537,401
Tenants’ security, escrow deposits and prepaid rent	49,124	46,013
Total liabilities	4,612,942	4,412,663
Commitments and contingencies	0	0
Stockholders’ equity/Partners' capital:
Common stock, $0.01 par value per share, 220,000,000 shares authorized; 169,435,301 and 171,364,908 shares issued at June 30, 2018 and December 31, 2017, respectively	1,694	1,714
Treasury stock at cost, 381,258 and 366,628 shares held at June 30, 2018 and December 31, 2017, respectively	(19,268)	(18,307)
Additional paid in capital	7,751,375	7,873,104
Accumulated other comprehensive income (loss)	10,317	(6,289)
Distributions in excess of net income	(1,216,018)	(1,158,170)
Total stockholders’ equity	6,528,100	6,692,052
Noncontrolling interests:
Exchangeable operating partnership units, aggregate redemption value of $21,722 and $24,206 at June 30, 2018 and December 31, 2017, respectively	10,765	10,907
Limited partners’ interests in consolidated partnerships	29,923	30,095
Stockholders' Equity Attributable to Noncontrolling Interest	40,688	41,002
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest	(6,568,788)	(6,733,054)
Total liabilities and equity	11,181,730	11,145,717
Partnership Interest [Member]
Real estate investments at cost:
Property, Plant and Equipment, Gross	10,752,552	10,578,430
Properties in development	164,001	314,391
Gross real estate investments at cost	10,916,553	10,892,821
Less: accumulated depreciation	1,433,120	1,339,771
Total Cost Net of Accumulated Depreciation	9,483,433	9,553,050
Investments in real estate partnerships	451,220	386,304
Net real estate investments	9,934,653	9,939,354
Real Estate Held-for-sale	102,163	0
Cash and cash equivalents	37,151	45,370
Restricted cash	6,089	4,011
Tenant and other receivables, net of allowance for doubtful accounts and straight-line rent reserves of $14,790 and $12,728 at June 30, 2018 and December 31, 2017, respectively	155,540	170,985
Deferred Costs, Leasing, Net	83,686	80,044
Acquired lease intangible assets, less accumulated amortization of $188,246 and $148,280 at June 30, 2018 and December 31, 2017, respectively	432,951	478,826
Other assets	429,497	427,127
Total assets	11,181,730	11,145,717
Liabilities:
Notes payable	3,118,002	2,971,715
Unsecured credit facilities	713,498	623,262
Accounts payable and other liabilities	215,300	234,272
Acquired lease intangible liabilities, less accumulated amortization of $75,179 and $56,550 at June 30, 2018 and December 31, 2017, respectively	517,018	537,401
Tenants’ security, escrow deposits and prepaid rent	49,124	46,013
Total liabilities	4,612,942	4,412,663
Commitments and contingencies	0	0
Stockholders’ equity/Partners' capital:
General partner; 169,435,301 and 171,364,908 units outstanding at June 30, 2018 and December 31, 2017, respectively	6,517,783	6,698,341
Limited partners; 349,902 units outstanding at June 30, 2018 and December 31, 2017	10,765	10,907
Accumulated other comprehensive income (loss)	10,317	(6,289)
Total partners’ capital	6,538,865	6,702,959
Noncontrolling interests:
Limited partners’ interests in consolidated partnerships	29,923	30,095
Total noncontrolling interests	29,923	30,095
Total equity	6,568,788	6,733,054
Total liabilities and equity	$ 11,181,730	$ 11,145,717

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Parent Company [Member]
Allowance for doubtful accounts receivable	$ 14,790	$ 12,728
Deferred costs accumulated amortization	97,107	93,291
Accumulated amortization of acquired lease intangible assets	188,246	148,280
Accumulated accretion of acquired lease intangible liabilities	$ 75,179	$ 56,550
Preferred stock, par value per share	$ 0.01	$ 0.01
Preferred stock, shares authorized	30,000,000	30,000,000
Common stock, par value per share	$ 0.01	$ 0.01
Common stock, shares authorized	220,000,000	220,000,000
Common stock, shares issued	169,435,301	171,364,908
Exchangeable operating partnership units aggregate redemption value	$ 21,722	$ 24,206
Treasury stock, shares held at cost	381,258	366,628
Partnership Interest [Member]
Allowance for doubtful accounts receivable	$ 14,790	$ 12,728
Deferred costs accumulated amortization	97,107	93,291
Accumulated amortization of acquired lease intangible assets	188,246	148,280
Accumulated accretion of acquired lease intangible liabilities	$ 75,179	$ 56,550
Preferred units of general partner par value per unit	$ 0.01	$ 0.01
General partner units, outstanding	169,435,301	171,364,908
Limited partner units, outstanding	349,902	349,902

Consolidated Statements of Operations - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Document Fiscal Year Focus			2018
Other expense (income):
Provision for impairment, net of tax	$ 2,974	$ 0	$ 3,348	$ 0
Gain (Loss) on Sale of Properties, Net of Applicable Income Taxes	1,123	4,366	1,219	4,781
Parent Company [Member]
Revenues:
Minimum rent	208,827	195,992	410,219	337,232
Percentage rent	1,196	1,456	5,068	4,362
Revenue from Contract with Customer, Including Assessed Tax	64,502	57,256	128,773	102,535
Property Management Fee Revenue	6,887	6,601	14,045	13,307
Total revenues	281,412	261,305	558,105	457,436
Operating expenses:
Depreciation and amortization	89,105	92,230	177,629	152,284
Operating and maintenance	41,851	36,105	84,367	65,868
General and administrative	16,776	16,746	34,382	34,419
Real estate taxes	31,541	28,871	61,967	50,321
Other operating expenses (note 2)	2,799	6,862	4,432	78,425
Total operating expenses	182,072	180,814	362,777	381,317
Other expense (income):
Interest expense, net	38,074	35,407	74,859	62,606
Provision for impairment, net of tax	12,533	0	28,587	0
Gain (Loss) on Extinguishment of Debt	11,010	12,404	11,172	12,404
Marketable Securities, Gain (Loss), Excluding Other-than-temporary Impairment Loss	(569)	(887)	(602)	(1,984)
Nonoperating Income (Expense)	61,048	46,924	114,016	73,026
Income from operations before equity in income of investments in real estate partnerships	38,292	33,567	81,312	3,093
Equity in income of investments in real estate partnerships	9,174	12,240	19,523	21,583
Income from operations	47,466	45,807	100,835	24,676
Gain (Loss) on Sale of Properties, Net of Applicable Income Taxes	1,123	4,366	1,219	4,781
Net income	48,589	50,173	102,054	29,457
Noncontrolling interests:
Noncontrolling Interest in Net Income (Loss) Operating Partnerships, Redeemable	100	104	212	85
Limited partners’ interests in consolidated partnerships	(648)	(576)	(1,342)	(1,247)
Income attributable to noncontrolling interests	(748)	(680)	(1,554)	(1,332)
Net income attributable to the Company	47,841	49,493	100,500	28,125
Preferred stock dividends and issuance costs	0	(1,125)	0	(12,981)
Net Income (Loss) Available to Common Stockholders, Basic	$ 47,841	$ 48,368	$ 100,500	$ 15,144
Income per common share/unit - basic:
Continuing operations (in dollars per share)	$ 0.28	$ 0.28	$ 0.59	$ 0.10
Income per common share/unit - diluted:
Continuing operations (in dollars per share)	$ 0.28	$ 0.28	$ 0.59	$ 0.10
Partnership Interest [Member]
Revenues:
Minimum rent	$ 208,827	$ 195,992	$ 410,219	$ 337,232
Percentage rent	1,196	1,456	5,068	4,362
Revenue from Contract with Customer, Including Assessed Tax	64,502	57,256	128,773	102,535
Property Management Fee Revenue	6,887	6,601	14,045	13,307
Total revenues	281,412	261,305	558,105	457,436
Operating expenses:
Depreciation and amortization	89,105	92,230	177,629	152,284
Operating and maintenance	41,851	36,105	84,367	65,868
General and administrative	16,776	16,746	34,382	34,419
Real estate taxes	31,541	28,871	61,967	50,321
Other operating expenses (note 2)	2,799	6,862	4,432	78,425
Total operating expenses	182,072	180,814	362,777	381,317
Other expense (income):
Interest expense, net	38,074	35,407	74,859	62,606
Provision for impairment, net of tax	12,533	0	28,587	0
Gain (Loss) on Extinguishment of Debt	11,010	12,404	11,172	12,404
Marketable Securities, Gain (Loss), Excluding Other-than-temporary Impairment Loss	(569)	(887)	(602)	(1,984)
Nonoperating Income (Expense)	61,048	46,924	114,016	73,026
Income from operations before equity in income of investments in real estate partnerships	38,292	33,567	81,312	3,093
Equity in income of investments in real estate partnerships	9,174	12,240	19,523	21,583
Income from operations	47,466	45,807	100,835	24,676
Gain (Loss) on Sale of Properties, Net of Applicable Income Taxes	1,123	4,366	1,219	4,781
Net income	48,589	50,173	102,054	29,457
Noncontrolling interests:
Limited partners’ interests in consolidated partnerships	(648)	(576)	(1,342)	(1,247)
Income attributable to noncontrolling interests	(648)	(576)	(1,342)	(1,247)
Net income attributable to the Company	47,941	49,597	100,712	28,210
Distributions Paid To Preferred Unit Holders	0	(1,125)	0	(12,981)
Net income attributable to common unit holders	$ 47,941	$ 48,472	$ 100,712	$ 15,229
Income per common share/unit - basic:
Continuing operations (in dollars per share)	$ 0.28	$ 0.28	$ 0.59	$ 0.10
Income per common share/unit - diluted:
Continuing operations (in dollars per share)	$ 0.28	$ 0.28	$ 0.59	$ 0.10

Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Document Fiscal Year Focus			2018
Other comprehensive income (loss):
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax	$ 4,289	$ (3,805)	$ 13,794	$ (3,873)
Parent Company [Member]
Net income	(48,589)	(50,173)	(102,054)	(29,457)
Other comprehensive income (loss):
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax	4,289	(3,805)	13,794	(3,873)
Reclassification adjustment of derivative instruments included in net income	1,415	3,071	3,553	5,726
Available-for-sale Securities, Gross Unrealized Gain	44	11	(75)	43
Other comprehensive income (loss)	5,748	(723)	17,272	1,896
Comprehensive income	54,337	49,450	119,326	31,353
Less: comprehensive income attributable to noncontrolling interests:
Net income attributable to noncontrolling interests	(748)	(680)	(1,554)	(1,332)
Other comprehensive income (loss) attributable to noncontrolling interests	195	(80)	678	(15)
Comprehensive income attributable to noncontrolling interests	943	600	2,232	1,317
Comprehensive income attributable to the Company	53,394	48,850	117,094	30,036
Partnership Interest [Member]
Net income	(48,589)	(50,173)	(102,054)	(29,457)
Other comprehensive income (loss):
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax	4,289	(3,805)	13,794	(3,873)
Reclassification adjustment of derivative instruments included in net income	1,415	3,071	3,553	5,726
Available-for-sale Securities, Gross Unrealized Gain	44	11	(75)	43
Other comprehensive income (loss)	5,748	(723)	17,272	1,896
Comprehensive income	54,337	49,450	119,326	31,353
Less: comprehensive income attributable to noncontrolling interests:
Net income attributable to noncontrolling interests	(648)	(576)	(1,342)	(1,247)
Other comprehensive income (loss) attributable to noncontrolling interests	183	79	643	(16)
Comprehensive income attributable to noncontrolling interests	831	655	1,985	1,231
Comprehensive income attributable to the Company	$ 53,506	$ 48,795	$ 117,341	$ 30,122

Consolidated Statement of Changes in Equity - USD ($) $ in Thousands	Parent Company [Member]	Partnership Interest [Member]	Preferred Stock [Member] Parent Company [Member]	Common Stock [Member] Parent Company [Member]	Treasury Stock [Member] Parent Company [Member]	Additional Paid-in Capital [Member] Parent Company [Member]	Accumulated Other Comprehensive Income (Loss) [Member]	Accumulated Other Comprehensive Income (Loss) [Member] Parent Company [Member]	Distributions in Excess of Net Income [Member] Parent Company [Member]	Total Stockholders' Equity [Member] Parent Company [Member]	Noncontrolling Interest Exchangeable Operating Partnership Units [Member] Parent Company [Member]	Noncontrolling Interests in Limited Partners' Interest in Consolidated Partnerships [Member] Parent Company [Member]	Noncontrolling Interest [Member] Parent Company [Member]	Preferred Stock [Member] Parent Company [Member]	Preferred Stock [Member] Preferred Stock [Member] Parent Company [Member]	Preferred Stock [Member] Common Stock [Member] Parent Company [Member]	Preferred Stock [Member] Treasury Stock [Member] Parent Company [Member]	Preferred Stock [Member] Additional Paid-in Capital [Member] Parent Company [Member]	Preferred Stock [Member] Accumulated Other Comprehensive Income (Loss) [Member] Parent Company [Member]	Preferred Stock [Member] Distributions in Excess of Net Income [Member] Parent Company [Member]	Preferred Stock [Member] Total Stockholders' Equity [Member] Parent Company [Member]	Preferred Stock [Member] Noncontrolling Interest Exchangeable Operating Partnership Units [Member] Parent Company [Member]	Preferred Stock [Member] Noncontrolling Interests in Limited Partners' Interest in Consolidated Partnerships [Member] Parent Company [Member]	Preferred Stock [Member] Noncontrolling Interest [Member] Parent Company [Member]	Common Stock [Member] Parent Company [Member]	Common Stock [Member] Preferred Stock [Member] Parent Company [Member]	Common Stock [Member] Common Stock [Member] Parent Company [Member]	Common Stock [Member] Treasury Stock [Member] Parent Company [Member]	Common Stock [Member] Additional Paid-in Capital [Member] Parent Company [Member]	Common Stock [Member] Accumulated Other Comprehensive Income (Loss) [Member] Parent Company [Member]	Common Stock [Member] Distributions in Excess of Net Income [Member] Parent Company [Member]	Common Stock [Member] Total Stockholders' Equity [Member] Parent Company [Member]	Common Stock [Member] Noncontrolling Interest Exchangeable Operating Partnership Units [Member] Parent Company [Member]	Common Stock [Member] Noncontrolling Interests in Limited Partners' Interest in Consolidated Partnerships [Member] Parent Company [Member]	Common Stock [Member] Noncontrolling Interest [Member] Parent Company [Member]	Partners Capital Total [Member] Partnership Interest [Member]	Noncontrolling Interest [Member] Partnership Interest [Member]	Accumulated Other Comprehensive Income (Loss) [Member] Partnership Interest [Member]	Limited Partner [Member] Partnership Interest [Member]	General Partner [Member] Partnership Interest [Member]	Equity One Inc. [Member] Parent Company [Member]	Equity One Inc. [Member] Partnership Interest [Member]	Equity One Inc. [Member] Preferred Stock [Member] Parent Company [Member]	Equity One Inc. [Member] Common Stock [Member] Parent Company [Member]	Equity One Inc. [Member] Treasury Stock [Member] Parent Company [Member]	Equity One Inc. [Member] Additional Paid-in Capital [Member] Parent Company [Member]	Equity One Inc. [Member] Accumulated Other Comprehensive Income (Loss) [Member] Parent Company [Member]	Equity One Inc. [Member] Distributions in Excess of Net Income [Member] Parent Company [Member]	Equity One Inc. [Member] Total Stockholders' Equity [Member] Parent Company [Member]	Equity One Inc. [Member] Noncontrolling Interest Exchangeable Operating Partnership Units [Member] Parent Company [Member]	Equity One Inc. [Member] Noncontrolling Interests in Limited Partners' Interest in Consolidated Partnerships [Member] Parent Company [Member]	Equity One Inc. [Member] Noncontrolling Interest [Member] Parent Company [Member]	Equity One Inc. [Member] Partners Capital Total [Member] Partnership Interest [Member]	Equity One Inc. [Member] Noncontrolling Interest [Member] Partnership Interest [Member]	Equity One Inc. [Member] Accumulated Other Comprehensive Income (Loss) [Member] Partnership Interest [Member]	Equity One Inc. [Member] Limited Partner [Member] Partnership Interest [Member]	Equity One Inc. [Member] General Partner [Member] Partnership Interest [Member]
Beginning balance at Dec. 31, 2016	$ 2,624,502		$ 325,000	$ 1,045	$ (17,062)	$ 3,294,923		$ (18,346)	$ (994,259)	$ 2,591,301	$ (1,967)	$ 35,168	$ 33,201
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss) Attributable to Parent	28,125	$ 28,210
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	29,457	29,457	0	0	0	0		0		28,125	85	1,247	1,332																							$ 28,210	$ 1,247	$ 0	$ 85	$ 28,125
Current period other comprehensive income, net	1,896	1,896	0	0	0	0	$ 1,911	1,911	0	1,911	1	(16)																								1,912		1,911	1	0
Other comprehensive income (loss) attributable to noncontrolling interests	(15)	(16)																																			(16)
Adjustments to Additional Paid in Capital, Share-based Compensation, Other Long-term Incentive Plans, Requisite Service Period Recognition	1		0	0	(1,043)	1,044		0	0	1	0	0	0
Restricted stock issued, net of amortization	7,171	7,171	0	2	0	7,169		0	0	7,171	0	0	0																							7,171	0	0	0	7,171	$ 7,951	$ 7,951	$ 0	$ 1	$ 0	$ 7,950	$ 0	$ 0	$ 7,951	$ 0	$ 0	$ 0	$ 7,951	$ 0	$ 0	$ 0	$ 7,951
Common stock redeemed for taxes withheld for stock based compensation, net																									$ 18,333	$ 0	$ 1	$ 0	$ 18,332	$ 0	$ 0	$ 18,333	$ 0	$ 0	$ 0
Common stock issued under dividend reinvestment plan	607	607																							607	0	0	0	607	0	0	607	0	0	0
Common stock issued, net of issuance costs																									4,471,470	0	654	0	4,470,816	0	0	4,471,470	0	0	0
Contributions from partners	13,441	13,441	0	0	0	0		0	0	0	13,100	341	13,441																							13,100	341	0	13,100	0
Distributions to partners	(5,946)	(149,761)	0	0	0	0		0	0	0	0	(5,946)	(5,946)																							(143,815)	(5,946)	0	(264)	(143,551)
Cash dividends declared: preferred stock/unit	4,367	4,367	0	0	0	0		0	4,367	4,367	0	0	0																							(4,367)	0	0	0	4,367
Redemption of preferred stock		250,000												$ 250,000	$ 250,000	$ 0	$ 0	$ 8,614	$ 0	$ 8,614	$ 250,000	$ 0	$ 0	$ 0												250,000	0	0	0	250,000
Preferred stock	(12,981)
Cash dividends declared - common stock/unit	143,815		0	0	0	0		0	143,551	143,551	264	0	264
Ending Balance at Jun. 30, 2017	6,734,035		75,000	1,701	(18,105)	7,772,791		(16,435)	(1,122,666)	6,692,286	10,955	30,794	41,749
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest, Adjusted Balance	6,763,957		0	1,714	(18,307)	7,873,104		(6,277)	(1,127,281)	6,722,953	10,907	30,097	41,004
Increase (Decrease) in Stockholders' Equity [Roll Forward]
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets	30,903	30,903	0	0	0	0	12	12	30,889	30,901	0	2	2																							30,901	2	12	0	30,889
Beginning balance at Dec. 31, 2017	6,733,054		0	1,714	(18,307)	7,873,104		(6,289)	(1,158,170)	6,692,052	10,907	30,095	41,002
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net Income (Loss) Attributable to Parent	100,500	100,712
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	102,054	102,054	0	0	0	0		0		100,500	212	1,342	1,554																							100,712	1,342	0	212	100,500
Current period other comprehensive income, net	17,272	17,272	0	0	0	0	$ 16,594	16,594	0	16,594	35	643																								16,629		16,594	35	0
Other comprehensive income (loss) attributable to noncontrolling interests	678	643																																			643
Adjustments to Additional Paid in Capital, Share-based Compensation, Other Long-term Incentive Plans, Requisite Service Period Recognition	(4)		0	0	(961)	957		0	0	(4)	0	0	0
Restricted stock issued, net of amortization	8,135	8,135	0	1	0	8,134		0	0	8,135	0	0	0																							8,135	0	0	0	8,135
Common stock redeemed for taxes withheld for stock based compensation, net																									6,540	0	0	0	6,540	0	0	6,540	0	0	0
Stock Repurchased and Retired During Period, Value																									(124,989)	0	(21)	0	(124,968)	0	0	(124,989)	0	0	0
Common stock issued under dividend reinvestment plan	678	678																							678	0	0	0	678	0	0	678	0	0	0
Common stock issued, net of issuance costs																									$ 10	$ 0	$ 0	$ 0	$ 10	$ 0	$ 0	$ 10	$ 0	$ 0	$ 0
Distributions to partners	(2,159)	(191,785)	0	0	0	0		0	0	0	0	(2,159)	(2,159)																							(189,626)	(2,159)	0	(389)	(189,237)
Common units redeemed as a result of common stock redeemed by Parent Company, net of issuances		$ 5,852																																		$ 5,852	$ 0	$ 0	$ 0	$ 5,852
Preferred stock	0
Cash dividends declared - common stock/unit	189,626		0	0	0	0		0	189,237	189,237	389	0	389
Ending Balance at Jun. 30, 2018	$ 6,568,788		$ 0	$ 1,694	$ (19,268)	$ 7,751,375		$ 10,317	$ (1,216,018)	$ 6,528,100	$ 10,765	$ 29,923	$ 40,688

Consolidated Statement of Changes in Partner Capital Statement - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017	Dec. 31, 2016
Partnership Interest [Member]
Common unit redeemed as result of common stock redeemed by parent		$ 4,453,744
Dividends, Preferred Stock, Cash		(4,367)
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets			$ 30,903
Partners' Capital, Adjusted Balance			6,763,957
Net income	$ 102,054	29,457
Other comprehensive income (loss)	17,272	1,896
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest	643	(16)
Deferred Compensation Plan	(4)	(1)
Partners' Capital Account, Contributions		13,441
Partners' Capital Account, Distributions	(191,785)	(149,761)
Common units repurchased and retired as a result of common stock repurchased and retired by Parent Company	(124,989)
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures	8,135	7,171
Partners' Capital, Including Portion Attributable to Noncontrolling Interest	6,568,788	6,734,035	6,733,054	$ 2,624,502
Partnership Interest [Member] \| Noncontrolling Interest [Member]
Common unit redeemed as result of common stock redeemed by parent		0
Dividends, Preferred Stock, Cash		0
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets			2
Partners' Capital, Adjusted Balance			30,097
Net income	1,342	1,247
Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest	643	(16)
Deferred Compensation Plan	0	0
Partners' Capital Account, Contributions		341
Partners' Capital Account, Distributions	(2,159)	(5,946)
Common units repurchased and retired as a result of common stock repurchased and retired by Parent Company	0
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures	0	0
Partners' Capital, Including Portion Attributable to Noncontrolling Interest	29,923	30,794	30,095	35,168
Partnership Interest [Member] \| Partners Capital Total [Member]
Common unit redeemed as result of common stock redeemed by parent		4,453,744
Dividends, Preferred Stock, Cash		4,367
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets			30,901
Partners' Capital, Adjusted Balance			6,733,860
Net income	100,712	28,210
Other comprehensive income (loss)	16,629	1,912
Deferred Compensation Plan	(4)	(1)
Partners' Capital Account, Contributions		13,100
Partners' Capital Account, Distributions	(189,626)	(143,815)
Common units repurchased and retired as a result of common stock repurchased and retired by Parent Company	(124,989)
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures	8,135	7,171
Partners' Capital, Including Portion Attributable to Noncontrolling Interest	6,538,865	6,703,241	6,702,959	2,589,334
Partnership Interest [Member] \| AOCI Attributable to Parent [Member]
Common unit redeemed as result of common stock redeemed by parent		0
Dividends, Preferred Stock, Cash		0
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets			12
Partners' Capital, Adjusted Balance			(6,277)
Net income	0	0
Other comprehensive income (loss)	16,594	1,911
Deferred Compensation Plan	0	0
Partners' Capital Account, Contributions		0
Partners' Capital Account, Distributions	0	0
Common units repurchased and retired as a result of common stock repurchased and retired by Parent Company	0
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures	0	0
Partners' Capital, Including Portion Attributable to Noncontrolling Interest	10,317	(16,435)	(6,289)	(18,346)
Partnership Interest [Member] \| Limited Partner [Member]
Common unit redeemed as result of common stock redeemed by parent		0
Dividends, Preferred Stock, Cash		0
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets			0
Partners' Capital, Adjusted Balance			10,907
Net income	212	85
Other comprehensive income (loss)	35	1
Deferred Compensation Plan	0	0
Partners' Capital Account, Contributions		13,100
Partners' Capital Account, Distributions	(389)	(264)
Common units repurchased and retired as a result of common stock repurchased and retired by Parent Company	0
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures	0	0
Partners' Capital, Including Portion Attributable to Noncontrolling Interest	10,765	10,955	10,907	(1,967)
Partnership Interest [Member] \| General Partner [Member]
Common unit redeemed as result of common stock redeemed by parent		4,453,744
Dividends, Preferred Stock, Cash		(4,367)
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets			30,889
Partners' Capital, Adjusted Balance			6,729,230
Net income	100,500	28,125
Other comprehensive income (loss)	0	0
Deferred Compensation Plan	(4)	(1)
Partners' Capital Account, Contributions		0
Partners' Capital Account, Distributions	(189,237)	(143,551)
Common units repurchased and retired as a result of common stock repurchased and retired by Parent Company	(124,989)
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures	8,135	7,171
Partners' Capital, Including Portion Attributable to Noncontrolling Interest	6,517,783	6,708,721	6,698,341	$ 2,609,647
AOCI Attributable to Parent [Member]
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets			$ 12
Other comprehensive income (loss)	$ 16,594	1,911
Equity One Inc. [Member] \| Partnership Interest [Member]
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures		7,951
Equity One Inc. [Member] \| Partnership Interest [Member] \| Noncontrolling Interest [Member]
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures		0
Equity One Inc. [Member] \| Partnership Interest [Member] \| Partners Capital Total [Member]
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures		7,951
Equity One Inc. [Member] \| Partnership Interest [Member] \| AOCI Attributable to Parent [Member]
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures		0
Equity One Inc. [Member] \| Partnership Interest [Member] \| Limited Partner [Member]
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures		0
Equity One Inc. [Member] \| Partnership Interest [Member] \| General Partner [Member]
Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures		$ 7,951

Consolidated Statements of Cash Flows - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Adjustments to reconcile net income to net cash provided by operating activities:
Provision for impairment	$ 3,348	$ 0
Cash flows from investing activities:
Proceeds from sale of real estate investments	42,008	15,230
Cash flows from financing activities:
Repayment of unsecured credit facilities	(60,000)
Partnership Interest [Member]
Cash flows from operating activities:
Net income	(102,054)	(29,457)
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	177,629	152,284
Amortization of deferred loan costs and debt premiums	4,999	4,769
Amortization of above and below Market Leases	(19,326)	(11,683)
Share-based Compensation	6,574	13,826
Equity in income of investments in real estate partnerships	(19,523)	(21,583)
Gain on sale of real estate, net of tax	(1,219)	(4,781)
Provision for impairment	28,587	0
Gain (Loss) on Extinguishment of Debt	11,172	12,404
Distribution of earnings from operations of investments in real estate partnerships	(26,711)	(26,271)
Deferred compensation expense	544	1,948
Realized and unrealized gain on investments	(530)	(1,951)
Changes in assets and liabilities:
Accounts receivable, net	6,023	10,639
Straight-line rent receivables, net	(9,825)	(8,887)
Deferred leasing costs	(3,404)	(6,701)
Other assets	(6,174)	3,617
Accounts payable and other liabilities	(6,052)	(23,850)
Tenants’ security and escrow deposits and prepaid rent	2,666	1,291
Net cash provided by operating activities	300,906	177,070
Cash flows from investing activities:
Acquisition of operating real estate	(85,766)	(345)
Payments for Deposits on Real Estate Acquisitions	(2,025)	(100)
Payments for Merger Related Costs	0	(646,984)
Real estate development and capital improvements	(120,579)	(159,889)
Proceeds from sale of real estate investments	42,508	13,270
Payments for (Proceeds from) Loans Receivable	15,648	(2,837)
Investments in real estate partnerships	(45,451)	(3,064)
Proceeds from Equity Method Investment, Distribution, Return of Capital	2,328	30,612
Dividends on investment securities	176	128
Acquisition of securities	(11,726)	(9,853)
Proceeds from sale of securities	10,976	10,877
Net cash used in investing activities	(193,911)	(768,185)
Cash flows from financing activities:
Payments Related to Tax Withholding for Share-based Compensation	(6,755)	(18,998)
Payments for Repurchase of Common Stock	(124,989)	0
Proceeds from sale of treasury stock	99	76
Payments for Repurchase of Preferred Units	0	250,000
Distributions to limited partners in consolidated partnerships, net	(2,159)	(5,891)
Dividends paid to common stockholders	(188,948)	(143,208)
Dividends paid to preferred stockholders	0	(4,366)
Repayments of Unsecured Debt	150,000	0
Proceeds from Issuance of Unsecured Debt	299,511	953,115
Proceeds from unsecured credit facilities	400,000	905,000
Repayment of unsecured credit facilities	(310,000)	(620,000)
Proceeds from notes payable	1,740	124,088
Repayments of Notes Payable	(6,199)	(232,839)
Scheduled principal payments	(5,513)	(4,789)
Payment of loan costs	(9,432)	(11,832)
Payment for Debt Extinguishment or Debt Prepayment Cost	10,491	12,419
Net cash (used in) provided by financing activities	(113,136)	677,937
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect	(6,141)	86,822
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	43,240	104,701
Supplemental disclosure of cash flow information:
Cash paid for interest (net of capitalized interest of $4,150 and $3,290 in 2018 and 2017, respectively)	66,692	43,643
Proceeds from Income Tax Refunds	(290)	(899)
Supplemental disclosure of non-cash transactions:
Partnership units issued for acquisition of real estate	0	13,100
Noncash or Part Noncash Acquisition, Debt Assumed	9,700	0
Real Estate Received Through Foreclosure On Notes Receivable	0	6,000
Common stock issued under dividend reinvestment plan	678	607
Stock-based compensation, net of capitalization	1,777	1,624
Contributions from limited partners in consolidated partnerships, net	0	286
Common stock issued for dividend reinvestment in trust	415	366
Contribution of stock awards into trust	1,174	1,372
Distribution of stock held in trust	524	640
Unrealized Gain (Loss) on Securities	(89)	43
Parent Company [Member]
Cash flows from operating activities:
Net income	(102,054)	(29,457)
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	177,629	152,284
Amortization of deferred loan costs and debt premiums	4,999	4,769
Amortization of above and below Market Leases	(19,326)	(11,683)
Share-based Compensation	6,574	13,826
Equity in income of investments in real estate partnerships	(19,523)	(21,583)
Gain on sale of real estate, net of tax	(1,219)	(4,781)
Provision for impairment	28,587	0
Gain (Loss) on Extinguishment of Debt	11,172	12,404
Distribution of earnings from operations of investments in real estate partnerships	(26,711)	(26,271)
Deferred compensation expense	544	1,948
Realized and unrealized gain on investments	(530)	(1,951)
Changes in assets and liabilities:
Accounts receivable, net	6,023	10,639
Straight-line rent receivables, net	(9,825)	(8,887)
Deferred leasing costs	(3,404)	(6,701)
Other assets	(6,174)	3,617
Accounts payable and other liabilities	(6,052)	(23,850)
Tenants’ security and escrow deposits and prepaid rent	2,666	1,291
Net cash provided by operating activities	300,906	177,070
Cash flows from investing activities:
Acquisition of operating real estate	(85,766)	(345)
Payments for Deposits on Real Estate Acquisitions	(2,025)	(100)
Payments for Merger Related Costs	0	(646,984)
Real estate development and capital improvements	(120,579)	(159,889)
Proceeds from sale of real estate investments	42,508	13,270
Payments for (Proceeds from) Loans Receivable	15,648	(2,837)
Investments in real estate partnerships	(45,451)	(3,064)
Proceeds from Equity Method Investment, Distribution, Return of Capital	2,328	30,612
Dividends on investment securities	176	128
Acquisition of securities	(11,726)	(9,853)
Proceeds from sale of securities	10,976	10,877
Net cash used in investing activities	(193,911)	(768,185)
Cash flows from financing activities:
Payments Related to Tax Withholding for Share-based Compensation	(6,755)	(18,998)
Payments for Repurchase of Common Stock	(124,989)	0
Proceeds from sale of treasury stock	99	76
Payments for Repurchase of Preferred Units	0	250,000
Distributions to limited partners in consolidated partnerships, net	(2,159)	(5,891)
Distributions to exchangeable operating partnership unit holders	(389)	(264)
Dividends paid to common stockholders	(188,559)	(142,944)
Dividends paid to preferred stockholders	0	(4,366)
Repayments of Unsecured Debt	150,000	0
Proceeds from Issuance of Unsecured Debt	299,511	953,115
Proceeds from unsecured credit facilities	400,000	905,000
Repayment of unsecured credit facilities	(310,000)	(620,000)
Proceeds from notes payable	1,740	124,088
Repayments of Notes Payable	(6,199)	(232,839)
Scheduled principal payments	(5,513)	(4,789)
Payment of loan costs	(9,432)	(11,832)
Payment for Debt Extinguishment or Debt Prepayment Cost	10,491	12,419
Net cash (used in) provided by financing activities	(113,136)	677,937
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect	(6,141)	86,822
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	43,240	104,701
Supplemental disclosure of cash flow information:
Cash paid for interest (net of capitalized interest of $4,150 and $3,290 in 2018 and 2017, respectively)	66,692	43,643
Proceeds from Income Tax Refunds	(290)	(899)
Supplemental disclosure of non-cash transactions:
Partnership units issued for acquisition of real estate	0	13,100
Noncash or Part Noncash Acquisition, Debt Assumed	9,700	0
Real Estate Received Through Foreclosure On Notes Receivable	0	6,000
Common stock issued under dividend reinvestment plan	678	607
Stock-based compensation, net of capitalization	1,777	1,624
Contributions from limited partners in consolidated partnerships, net	0	286
Common stock issued for dividend reinvestment in trust	415	366
Contribution of stock awards into trust	1,174	1,372
Distribution of stock held in trust	524	640
Unrealized Gain (Loss) on Securities	(89)	43
Equity One Inc. [Member] \| Partnership Interest [Member]
Supplemental disclosure of non-cash transactions:
Noncash or Part Noncash Acquisition, Debt Assumed	0	757,399
Units Issued to Parent Company for common stock exchanged for Equity One shares	0	4,471,808
Equity One Inc. [Member] \| Parent Company [Member]
Supplemental disclosure of non-cash transactions:
Noncash or Part Noncash Acquisition, Debt Assumed	0	757,399
Common stock exchanged for Equity One shares	$ 0	$ 4,471,808

Organization and Principles of Consolidation

6 Months Ended

Jun. 30, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Organization and Principles of Consolidation

Organization and Significant Accounting Policies

General

Regency Centers Corporation (the “Parent Company”) began its operations as a Real Estate Investment Trust (“REIT”) in 1993 and is the general partner of Regency Centers, L.P. (the “Operating Partnership”). The Parent Company engages in the ownership, management, leasing, acquisition, and development of retail shopping centers through the Operating Partnership, and has no other assets other than through its investment in the Operating Partnership, and its only liabilities are the unsecured notes assumed from the merger with Equity One, Inc. ("Equity One"), which are co-issued and guaranteed by the Operating Partnership. The Parent Company guarantees all of the unsecured debt of the Operating Partnership.

As of June 30, 2018, the Parent Company, the Operating Partnership, and their controlled subsidiaries on a consolidated basis owned 309 retail shopping centers and held partial interests in an additional 119 retail shopping centers through unconsolidated investments in real estate partnerships (also referred to as "joint ventures" or "investment partnerships").

The consolidated financial statements reflect all adjustments which are, in the opinion of management, necessary to fairly state the results for the interim periods presented. These adjustments are considered to be of a normal recurring nature.

Consolidation

The Company consolidates properties that are wholly owned and properties where it owns less than 100%, but which it controls. Control is determined using an evaluation based on accounting standards related to the consolidation of voting interest entities and variable interest entities ("VIEs"). For joint ventures that are determined to be a VIE, the Company consolidates the entity where it is deemed to be the primary beneficiary. Determination of the primary beneficiary is based on whether an entity has (1) the power to direct the activities of the VIE that most significantly impact the entity's economic performance, and (2) the obligation to absorb losses of the entity that could potentially be significant to the VIE or the right to receive benefits from the entity that could potentially be significant to the VIE. The Company's determination of the primary beneficiary considers all relationships between it and the VIE, including management agreements and other contractual arrangements.

Ownership of the Operating Partnership

The Operating Partnership’s capital includes general and limited common Partnership Units. As of June 30, 2018, the Parent Company owned approximately 99.8% of the outstanding common Partnership Units of the Operating Partnership with the remaining limited common Partnership Units held by third parties (“Exchangeable operating partnership units” or “EOP units”). The EOP units are exchangeable for one share of common stock of the Parent Company and the unit holder cannot require redemption in cash or other assets. The Parent Company classifies EOP units as permanent equity in the accompanying Consolidated Balance Sheets and Consolidated Statements of Equity and Comprehensive Income. The Parent Company serves as general partner of the Operating Partnership. The EOP unit holders have limited rights over the Operating Partnership such that they do not have the power to direct the activities of the Operating Partnership. As such, the Operating Partnership is considered a VIE, and the Parent Company, which consolidates it, is the primary beneficiary. The Parent Company’s only investment is the Operating Partnership. Net income and distributions of the Operating Partnership are allocable to the general and limited common Partnership Units in accordance with their ownership percentages.

Real Estate Partnerships

As of June 30, 2018, Regency had a partial ownership interest in 130 properties through partnerships, of which 11 are consolidated. Regency's partners include institutional investors, other real estate developers and/or operators, and individual parties who had a role in Regency sourcing transactions for development and investment (the "Partners" or "limited partners"). Regency has a variable interest in these entities through its equity interests. As managing member, Regency maintains the books and records and typically provides leasing and property management to the partnerships. The partners’ level of involvement varies from protective decisions (debt, bankruptcy, selling primary asset(s) of the business) to involvement in approving leases, operating budgets, and capital budgets.


•	Those partnerships for which the Partners only have protective rights are considered VIEs under ASC 810, Consolidation. Regency is the primary beneficiary of these VIEs as Regency has power over these partnerships and they operate primarily for the benefit of Regency. As such, Regency consolidates these entities and reports the limited partners’ interest as noncontrolling interests.

The majority of the operations of the VIEs are funded with cash flows generated by the properties, or in the case of developments, with capital contributions or third party construction loans. Regency does not provide financial support to the VIEs.


•	Those partnerships for which the partners are involved in the day to day decisions and do not have any other aspects that would cause them to be considered VIEs, are evaluated for consolidation using the voting interest model.


◦	Those partnerships in which Regency has a controlling financial interest are consolidated; and the limited partners’ ownership interest and share of net income is recorded as noncontrolling interest.

◦

Those partnerships in which Regency does not have a controlling financial interest are accounted for using the equity method, and its ownership interest is recognized through single-line presentation as Investments in real estate partnerships in the Consolidated Balance Sheets, and Equity in income of investments in real estate partnerships in the Consolidated Statements of Operations. Cash distributions of earnings from operations from investments in real estate partnerships are presented in cash flows provided by operating activities in the accompanying Consolidated Statements of Cash Flows. Cash distributions from the sale of a property or loan proceeds received from the placement of debt on a property included in investments in real estate partnerships are presented in cash flows provided by investing activities in the accompanying Consolidated Statements of Cash Flows. Distributed proceeds from debt refinancing and real estate sales in excess of Regency's carrying value of its investment has resulted in a negative investment balance for one partnership, which is recorded within accounts payable and other liabilities in the Consolidated Balance Sheets.

◦

The net difference in the carrying amount of investments in real estate partnerships and the underlying equity in net assets is accreted to income and recorded in equity in income of investments in real estate partnerships in the accompanying Consolidated Statements of Operations over the expected useful lives of the properties and other intangible assets, which range in lives from 10 to 40 years.

The assets of these partnerships are restricted to the use of the partnerships and cannot be used by general creditors of the Company. And similarly, the obligations of the partnerships can only be settled by the assets of these partnerships.

The major classes of assets, liabilities, and non-controlling equity interests held by the Company's consolidated VIEs, exclusive of the Operating Partnership as a whole, are as follows:



(in thousands)	June 30, 2018		December 31, 2017
Assets
Net real estate investments	$	161,592	172,736
Cash and cash equivalents	3,795		4,993
Liabilities
Notes payable	18,358		16,551
Equity
Limited partners’ interests in consolidated partnerships	17,496		17,572

Revenues and Tenant and Other Receivables

On January 1, 2018, the Company adopted the new accounting guidance for revenue recognition (Topic 606 Revenue from Contracts with Customers, “Topic 606”), as discussed further in the section below, Recent Accounting Pronouncements. Upon adoption of the new standard, certain of the Company's significant accounting policies subject to Topic 606 have been updated.

The Company adopted Topic 606 on January 1, 2018, using a modified retrospective approach and applied the transition practical expedients allowed by the standard. Additionally, the Company applied the practical expedient related to the remaining performance obligations, because all of its performance obligations are satisfied at a point in time, are part of a contract that has an original expected duration of one year or less, or are considered to be a series of performance obligations where variable consideration is allocated entirely to a wholly unsatisfied distinct day of service that forms part of the series, such that the Company does not need to estimate variable consideration to recognize revenue.

Subsequent to the adoption of Topic 606, the Company recognizes revenue when or as control of the promised services is transferred to its customers, in an amount that reflects the consideration the Company expects to be entitled to in exchange for those services. The following is a description of the Company's revenue from contracts with customers which is in the scope of Topic 606.

Property and Asset Management Services

The Company is engaged under agreements with its joint venture partnerships, which are generally perpetual in nature and cancellable through unanimous partner approval, absent an event of default. Under these agreements, the Company is to provide asset management, property management, and leasing services for the joint ventures' shopping centers. The fees are market-based, generally calculated as a percentage of either revenues earned or the estimated values of the properties managed or the proceeds received, and are recognized over the monthly or quarterly periods as services are rendered. Property management and asset management services represent a series of distinct daily services. Accordingly, the Company satisfies its performance obligation as service is rendered each day and the variability associated with that compensation is resolved each day. Amounts due from the partnerships for such services are paid during the month following the monthly or quarterly service periods.

Several of the Company’s partnership agreements provide for incentive payments, generally referred to as “promotes” or “earnouts,” to Regency for appreciation in property values in Regency's capacity as manager. The terms of these promotes are based on appreciation in real estate value over designated time intervals. The Company evaluates its expected promote payout at each reporting period, which generally does not result in revenue recognition until the measurement period has completed, when the amount can be reasonably determined and the amount is not probable of significant reversal.

Leasing Services

Leasing service fees are based on a percentage of the total rent due under the lease. The leasing service is considered performed upon successful execution of an acceptable tenant lease for the joint ventures’ shopping centers, at which time revenue is recognized. Payment of the first half of the fee is generally due upon lease execution and the second half is generally due upon tenant opening or rent payments commencing.

Transaction Services

The Company also receives transaction fees, as contractually agreed upon with each joint venture, which include acquisition fees, disposition fees, and financing service fees. Control of these services is generally transferred to the customer at the time the related transaction closes, which is the point in time when the Company recognizes the related fees. Any unpaid amounts related to transaction-based fees are included in Accounts receivable.

All income from contracts with the Company's real estate partnerships is included within Management, transaction and other fees on the Consolidated Statements of Operations, as follows:



		Three months ended June 30,				Six months ended June 30,
(in thousands)	Timing of satisfaction of performance obligations	2018		2017		2018		2017
Property management services	Over time	$	3,652	$	3,587	$	7,420	7,006
Asset management services	Over time	1,804		1,763		3,507		3,552
Leasing services	Point in time	1,072		787		1,757		1,617
Other transaction fees	Point in time	359		464		1,361		1,132
Total management, transaction, and other fees		$	6,887	6,601		$	14,045	13,307

The accounts receivable for management services, which are included within Tenant and other receivables in the accompanying Consolidated Balance Sheets, are $9.1 million and $8.7 million, as of June 30, 2018 and December 31, 2017, respectively.

Real Estate Sales

On January 1, 2018, the Company adopted the new accounting guidance for sales of nonfinancial assets (“Subtopic 610-20”), as discussed further in the section below, Recent Accounting Pronouncements. Upon adoption of the new standard, the Company's accounting policy for real estate sales subject to Subtopic 610-20 has been updated. The Company now derecognizes real estate and recognizes a gain or loss on sales of real estate when a contract exists and control of the property has transferred to the buyer. Control of the property, including controlling financial interest, is generally considered to transfer upon closing through transfer of the legal title and possession of the property. Any retained non-controlling interest is measured at fair value. This change in accounting policy resulted in the recognition, through opening retained earnings on January 1, 2018, of $30.9 million of previously deferred gains from property sales to the Company's Investments in real estate partnerships.

Goodwill

Goodwill represents the excess of the purchase price consideration for the Equity One merger over the fair value of the assets acquired and liabilities assumed, and reflects expected synergies from combining Regency's and Equity One's operations. The Company accounts for goodwill in accordance with the Intangibles - Goodwill and Other Topic of the FASB ASC 350, and allocates its goodwill to its reporting units, which have been determined to be at the individual property level. The Company performs an impairment evaluation of its goodwill at least annually, in November of each year, or more frequently as triggers occur.

The goodwill impairment evaluation may be completed through a qualitative or quantitative approach. Under a qualitative approach, the impairment review for goodwill consists of an assessment of whether it is more-likely-than-not that the reporting unit’s fair value is less than its carrying value, including goodwill. If a qualitative approach indicates it is more likely-than-not that the estimated carrying value of a reporting unit (including goodwill) exceeds its fair value, or if the Company chooses to bypass the qualitative approach for any reporting unit, the Company will perform the quantitative approach described below.

The quantitative approach consists of estimating the fair value of each reporting unit using discounted projected future cash flows and comparing those estimated fair values with the carrying values, which include the allocated goodwill. If the estimated fair value is less than the carrying value, the Company would then recognize an impairment charge for the amount by which the carrying amount exceeds the reporting unit's fair value, not to exceed the total amount of goodwill allocated to that reporting unit.

Real Estate Investments

6 Months Ended

Jun. 30, 2018

Business Combinations [Abstract]

Real Estate Investments

The following table details the components of Land, building and improvements in the Consolidated Balance Sheets:



(in thousands)	June 30, 2018		December 31, 2017
Land	$	4,219,729	4,235,032
Land improvements	595,260		556,140
Buildings	5,088,953		4,999,378
Building and tenant improvements	848,610		787,880
Total Land, building and improvements	$	10,752,552	10,578,430

Acquisitions

The following table details the shopping centers acquired or land acquired or leased for development:



(in thousands)		Six months ended June 30, 2018
Date Purchased	Property Name	City/State	Property Type	Ownership	Purchase Price	Debt Assumed, Net of Premiums	Intangible Assets	Intangible Liabilities
1/2/18	Ballard Blocks I	Seattle, WA	Operating	49.9%	$54,500	—	3,668	2,350
1/2/18	Ballard Blocks II	Seattle, WA	Development	49.9%	4,000	—	—	—
1/5/18	The District at Metuchen	Metuchen, NJ	Operating	20%	33,830	—	3,147	1,905
1/10/18	Hewlett Crossing I & II	Hewlett, NY	Operating	100%	30,900	9,700	3,114	1,868
4/3/2018	Rivertowns Square	Dobbs Ferry, NY	Operating	100%	68,933	—	4,993	5,554
5/18/2018	Crossroads Commons II	Boulder, CO	Operating	20%	10,500	—	447	769
Total property acquisitions					$202,663	9,700	15,369	12,446

(in thousands)		Six months ended June 30, 2017
Date Purchased	Property Name	City/State	Property Type	Ownership	Purchase Price	Debt Assumed, Net of Premiums	Intangible Assets	Intangible Liabilities
3/6/17	The Field at Commonwealth	Chantilly, VA	Development	100%	$9,500	—	—	—
3/8/17	Pinecrest Place ⁽¹⁾	Miami, FL	Development	100%	—	—	—	—
4/13/17	Mellody Farm ⁽²⁾	Chicago, IL	Development	100%	26,200	—	—	—
6/28/17	Concord outparcel ⁽³⁾	Miami, FL	Operating	100%	350	—	—	—
Total property acquisitions					$36,050	—	—	—
⁽¹⁾ The Company leased 10.67 acres for a ground up development.
⁽²⁾ The Operating Partnership issued 195,732 partnership units values at $13.1 million as partial consideration for the purchase.
⁽³⁾ The Company purchased a 0.67 acre vacant outparcel adjacent to the Company's existing operating Concord Shopping Plaza.

Equity One Merger

General

On March 1, 2017, Regency completed its merger with Equity One, a NYSE listed shopping center company, whereby Equity One merged with and into Regency, with Regency continuing as the surviving public company. Under the terms of the Merger Agreement, each Equity One stockholder received 0.45 of a newly issued share of Regency common stock for each share of Equity One common stock owned immediately prior to the effective time of the merger resulting in approximately 65.5 million Regency common shares being issued to effect the merger.

The following table provides the components that made up the total purchase price for the Equity One merger:



(in thousands, except stock price)	Purchase Price
Shares of common stock issued for merger	65,379
Closing stock price on March 1, 2017	$	68.40
Value of common stock issued for merger	$	4,471,808
Other cash payments	721,297
Total purchase price	$	5,193,105

As part of the merger, Regency acquired 121 properties, including 8 properties held through co-investment partnerships. The consolidated net assets and results of operations of Equity One are included in the consolidated financial statements from the closing date, March 1, 2017.

Final Purchase Price Allocation of Merger

The Equity One merger has been accounted for using the acquisition method of accounting in accordance with ASC 805, Business Combinations, which requires, among other things, that the assets acquired and liabilities assumed be recognized at their acquisition date fair values, and allows a measurement period, not to exceed one year from the acquisition date, to finalize the acquisition date fair values.

The acquired assets and assumed liabilities of an acquired operating property generally include, but are not limited to: land, buildings and improvements, identified tangible and intangible assets and liabilities associated with in-place leases, including tenant improvements, leasing costs, value of above-market and below-market leases, and value of acquired in-place leases. This methodology requires estimating an “as-if vacant” fair value of the physical property, which includes land, building, and improvements and also determining the estimated fair value of identifiable intangible assets and liabilities, considering the following categories: (i) value of in-place leases, and (ii) above and below-market value of in-place leases, and deferred taxes related to the book tax difference created through purchase accounting. The excess of the purchase price consideration over the fair value of assets acquired and liabilities assumed results in goodwill in the business combination, which reflects expected synergies from combining Regency's and Equity One's operations and the deferred tax liability at one of the acquired taxable REIT subsidiaries. The goodwill is not deductible for tax purposes.

The fair value of the acquired operating properties is based on a valuation prepared by Regency with assistance of a third party valuation specialist. The third party used stabilized Net Operating Income (“NOI”) and market specific capitalization and discount rates as the primary inputs in determining the fair value of the real estate assets. Management reviewed the inputs used by the third party specialist as well as the allocation of the purchase price to ensure reasonableness and that the procedures were performed in accordance with management's policy. Management and the third party valuation specialist have prepared their fair value estimates for each of the operating properties acquired, and completed the purchase price allocation during the measurement period.

The following table summarizes the final purchase price allocation based on the Company's valuation, including estimates and assumptions of the acquisition date fair value of the tangible and intangible assets acquired and liabilities assumed:



(in thousands)	Final Purchase Price Allocation
Land	$	2,865,053
Building and improvements	2,619,163
Properties in development	68,744
Properties held for sale	19,600
Investments in unconsolidated real estate partnerships	99,666
Real estate assets	5,672,226
Cash, accounts receivable and other assets	112,909
Intangible assets	458,877
Goodwill	332,384
Total assets acquired	6,576,396
Notes payable	757,399
Accounts payable, accrued expenses, and other liabilities	122,217
Lease intangible liabilities	503,675
Total liabilities assumed	1,383,291
Total purchase price	$	5,193,105

The following table details the weighted average amortization and net accretion periods, in years, of the major classes of intangible assets and intangible liabilities arising from the Equity One merger:



(in years)		Weighted Average Amortization / Accretion Period
Assets:
In-place leases		10.8
Above-market leases		7.8
Below-market ground leases		55.3
Liabilities:
Below-market leases		24.9

Pro forma Information

The following unaudited pro forma financial data includes the incremental revenues, operating expenses, depreciation and amortization, and costs of the Equity One acquisition as if it had occurred on January 1, 2016:



		Three months ended June 30,		Six months ended June 30,
(in thousands, except per share data)		2017		2017
Total revenues		$	261,314	$	526,488
Income from operations	⁽¹⁾	56,435		123,832
Net income attributable to common stockholders	⁽¹⁾	54,624		109,434
Income per common share - basic		0.32		0.64
Income per common share - diluted		0.32		0.64
⁽¹⁾The pro forma earnings for the three and six months ended June 30, 2017, were adjusted to exclude $4.7 million and $97.3 million of merger costs, respectively.

The pro forma financial data is not necessarily indicative of what the actual results of operations would have been assuming the transaction had been completed as set forth above, nor does it purport to represent the results of operations for future periods.

Property Dispositions

6 Months Ended

Jun. 30, 2018

Discontinued Operations and Disposal Groups [Abstract]

Property Dispositions

Dispositions

The following table provides a summary of consolidated shopping centers and land parcels disposed of during the periods set forth below:



	Three months ended June 30,						Six months ended June 30,
(in thousands, except number sold data)	2018			2017			2018			2017
Net proceeds from sale of real estate investments	$	38,781		$	13,481		$	42,008		$	15,230
Gain on sale of real estate, net of tax	$	1,123		$	4,366		$	1,219		$	4,781
Provision for impairment of real estate sold	$	2,974		$	—		$	3,348		$	—
Number of operating properties sold	3			1			4			1
Number of land parcels sold	3			5			3			7
Percent interest sold	100		%	100		%	100		%	100		%

At June 30, 2018, the Company also had three properties classified as Properties held for sale on the Consolidated Balance Sheets, all of which have sold subsequent to June 30, 2018.

Other Assets Other Assets (Notes)

3 Months Ended

Jun. 30, 2018

Other Assets [Abstract]

Other Assets Disclosure [Text Block]

Other Assets

The following table represents the components of Other assets in the accompanying Consolidated Balance Sheets:



(in thousands)	June 30, 2018		December 31, 2017
Goodwill	$	320,639	331,884
Investments	42,672		41,636
Prepaid and other	25,771		30,332
Derivative assets	25,472		14,515
Furniture, fixtures, and equipment, net	7,010		6,123
Deferred financing costs, net	7,933		2,637
Total other assets	$	429,497	427,127

The following table presents the goodwill balances and activity during the year to date periods ended:



(in thousands)	June 30, 2018			December 31, 2017
Beginning of year balance	$	331,884		—
Goodwill resulting from Equity One merger	500			331,884
Goodwill allocated to properties sold	(381		)	—
Impairment ⁽¹⁾	(9,220		)	—
Goodwill allocated to properties held for sale	(2,144		)	—
End of period balance	$	320,639		331,884
⁽¹⁾ See note 7, Fair value measurements, for additional information about the impairment loss associated with properties held and used or held for sale.

Notes Payable and Unsecured Credit Facilities

6 Months Ended

Jun. 30, 2018

Debt Disclosure [Abstract]

Notes Payable and Unsecured Credit Facilities

The Company’s outstanding debt consisted of the following:



(in thousands)	Weighted Average Contractual Rate	Weighted Average Effective Rate	June 30, 2018			December 31, 2017
Notes payable:
Fixed rate mortgage loans	5.1%	4.4%	$	516,149		520,193
Variable rate mortgage loans	3.3%	3.5%	127,727		⁽¹⁾	125,866
Fixed rate unsecured public and private debt	4.0%	4.4%	2,474,126			2,325,656
Total notes payable			3,118,002			2,971,715
Unsecured credit facilities:
Line of Credit (the "Line") ⁽²⁾	2.8%	3.0%	150,000			60,000
Term loans	2.4%	2.5%	563,498			563,262
Total unsecured credit facilities			713,498			623,262
Total debt outstanding			$	3,831,500		3,594,977

⁽¹⁾ Includes five mortgages whose interest rates vary on LIBOR based formulas. Three of these variable rate loans have interest rate swaps in place to fix the interest rates at a range of 2.8% to 4.07%.
⁽²⁾ Weighted average effective and contractual rate for the Line is calculated based on a fully drawn Line balance.

Significant financing activity during 2018 includes:

•

On March 9, 2018, the Company received proceeds from issuing $300.0 million of 4.125% senior unsecured public notes, which priced at 99.837% and mature in March 2028. $60.0 million of the proceeds were used to repay our Line and $163.2 million was used to early redeem, on April 2, 2018, the $150.0 million 6% senior unsecured public notes originally due June 2020, including accrued and unpaid interest through the redemption date and a make-whole amount. The remainder of the proceeds are intended to be used to repay 2018 mortgage maturities and for general corporate purposes.

•

On March 26, 2018, the Company amended and restated its unsecured revolving credit facility (the “Line”). The amendment and restatement increases the size of the Line to $1.25 billion from $1.0 billion and extends the maturity date to March 23, 2022, with options to extend the maturity for two additional six-month periods. Borrowings will bear interest at an annual rate of LIBOR plus 87.5 basis points, subject to the Company’s credit ratings, compared to a rate of 92.5 basis points under its previous facility. An annual facility fee of 15 basis points, subject to the Company’s credit ratings, applies to the Line.

As of June 30, 2018, scheduled principal payments and maturities on notes payable and unsecured credit facilities were as follows:



(in thousands)	June 30, 2018
Scheduled Principal Payments and Maturities by Year:	Scheduled Principal Payments		Mortgage Loan Maturities	Unsecured Maturities ⁽¹⁾		Total
2018	$	5,173	106,117	—		111,290
2019	9,519		23,525	—		33,044
2020	11,287		78,580	300,000		389,867
2021	11,600		66,751	250,000		328,351
2022	11,799		5,848	715,000		732,647
Beyond 5 Years	37,056		269,216	1,950,000		2,256,272
Unamortized debt premium/(discount) and issuance costs	—		7,405	(27,376	)	(19,971	)
Total	$	86,434	557,442	3,187,624		3,831,500

⁽¹⁾ Includes unsecured public and private debt and unsecured credit facilities.

The Company has $129.6 million of mortgage loans maturing through 2019, which it currently intends to repay if wholly owned, or refinance if held within a consolidated real estate investment partnership. The Company has sufficient capacity on its Line to repay this maturing debt, all of which is in the form of non-recourse mortgage loans.

The Company was in compliance as of June 30, 2018 with the financial and other covenants under its unsecured public and private placement debt and unsecured credit facilities.

Derivatives

6 Months Ended

Jun. 30, 2018

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Derivative Financial Instruments

The Company may use derivative financial instruments, including interest rate swaps, caps, options, floors, and other interest rate derivative contracts, to hedge all or a portion of the interest rate risk associated with its borrowings. The principal objective of such arrangements is to minimize the risks and/or costs associated with the Company’s operating and financial structure as well as to hedge specific anticipated transactions. The Company does not intend to utilize derivatives for speculative or other purposes other than interest rate risk management. The use of derivative financial instruments carries certain risks, including the risk that the counterparties to these contractual arrangements are not able to perform under the agreements. To mitigate this risk, the Company only enters into derivative financial instruments with counterparties with high credit ratings and with major financial institutions with which the Company and its affiliates may also have other financial relationships. The Company does not anticipate that any of the counterparties will fail to meet their obligations.

The Company’s objectives in using interest rate derivatives are to add stability to interest expense and to manage its exposure to interest rate movements. To accomplish this objective, the Company primarily uses interest rate swaps as part of its interest rate risk management strategy. Interest rate swaps designated as cash flow hedges involve the receipt of variable-rate amounts from a counterparty in exchange for the Company making fixed-rate payments over the life of the agreements without exchange of the underlying notional amount.

The following table summarizes the terms and fair values of the Company's derivative financial instruments, as well as their classification on the Consolidated Balance Sheets:



						Fair Value
(in thousands)						Assets (Liabilities)⁽¹⁾
Effective Date	Maturity Date	Notional Amount		Bank Pays Variable Rate of	Regency Pays Fixed Rate of	June 30, 2018		December 31, 2017
4/3/17	12/2/20	$	300,000	1 Month LIBOR with Floor	1.824%	$	5,890	1,804
8/1/16	1/5/22	265,000		1 Month LIBOR with Floor	1.053%	15,022		10,744
4/7/16	4/1/23	20,000		1 Month LIBOR	1.303%	1,243		801
12/1/16	11/1/23	33,000		1 Month LIBOR	1.490%	2,002		1,166
6/2/17	6/2/27	37,500		1 Month LIBOR with Floor	2.366%	1,315		(177	)
						$	25,472	14,338

⁽¹⁾ Derivatives in an asset position are included within other assets in the accompanying Consolidated Balance Sheets, while those in a liability position are included within accounts payable and other liabilities.

These derivative financial instruments are all interest rate swaps, which are designated and qualify as cash flow hedges. The Company does not use derivatives for trading or speculative purposes and, as of June 30, 2018, does not have any derivatives that are not designated as hedges. The Company has master netting agreements; however, the Company does not have multiple derivatives subject to a single master netting agreement with the same counterparties. Therefore, none are offset in the accompanying Consolidated Balance Sheets.

The changes in the fair value of derivatives designated and qualifying as cash flow hedges is recorded in accumulated other comprehensive income (loss) ("AOCI") and subsequently reclassified into earnings in the period that the hedged forecasted transaction affects earnings.

The following table represents the effect of the derivative financial instruments on the accompanying consolidated financial statements:



Location and Amount of Gain (Loss) Recognized in OCI on Derivative					Location and Amount of Gain (Loss) Reclassified from AOCI into Income						Total Interest Expense presented in the Consolidated Statements of Operations in which the effects of cash flow hedges are recorded
	Three months ended June 30,					Three months ended June 30,						Three months ended June 30,
(in thousands)	2018		2017			2018			2017			2018		2017
Interest rate swaps	$	4,289	(3,805	)	Interest expense	$	(1,415	)	(3,071	)	Interest expense, net	$	38,074	35,407

Location and Amount of Gain (Loss) Recognized in OCI on Derivative					Location and Amount of Gain (Loss) Reclassified from AOCI into Income						Total Interest Expense presented in the Consolidated Statements of Operations in which the effects of cash flow hedges are recorded
	Six months ended June 30,					Six months ended June 30,						Six months ended June 30,
(in thousands)	2018		2017			2018			2017			2018		2017
Interest rate swaps	$	13,794	(3,873	)	Interest expense	$	(3,553	)	(5,726	)	Interest expense, net	$	74,859	62,606

As of June 30, 2018, the Company expects $2.5 million of net deferred losses on derivative instruments in AOCI, including the Company's share from its Investments in real estate partnerships, to be reclassified into earnings during the next 12 months. Included in the reclass is $8.4 million which is related to previously settled swaps on the Company's ten year fixed rate unsecured loans.

Fair Value Measurements

6 Months Ended

Jun. 30, 2018

Fair Value Disclosures [Abstract]

Fair Value Measurements

(a) Disclosure of Fair Value of Financial Instruments

All financial instruments of the Company are reflected in the accompanying Consolidated Balance Sheets at amounts which, in management's estimation, reasonably approximate their fair values, except for the following:



	June 30, 2018			December 31, 2017
(in thousands)	Carrying Amount		Fair Value	Carrying Amount		Fair Value
Financial assets:
Notes receivable	$	—	—	$	15,803	15,660
Financial liabilities:
Notes payable	$	3,118,002	3,081,052	$	2,971,715	3,058,044
Unsecured credit facilities	$	713,498	715,000	$	623,262	625,000

The above fair values represent management's estimate of the amounts that would be received from selling those assets or that would be paid to transfer those liabilities in an orderly transaction between market participants as of June 30, 2018 and December 31, 2017, respectively. These fair value measurements maximize the use of observable inputs. However, in situations where there is little, if any, market activity for the asset or liability at the measurement date, the fair value measurement reflects the Company's own judgments about the assumptions that market participants would use in pricing the asset or liability.

The Company develops its judgments based on the best information available at the measurement date, including expected cash flows, appropriate risk-adjusted discount rates, and available observable and unobservable inputs. Service providers involved in fair value measurements are evaluated for competency and qualifications on an ongoing basis. As considerable judgment is often necessary to estimate the fair value of these financial instruments, the fair values presented above are not necessarily indicative of amounts that will be realized upon disposition of the financial instruments.

(b) Fair Value Measurements

The following financial instruments are measured at fair value on a recurring basis:

Securities

The Company has investments in marketable securities that are included within other assets on the accompanying Consolidated Balance Sheets. The fair value of the securities was determined using quoted prices in active markets, which are considered Level 1 inputs of the fair value hierarchy. Changes in the value of securities are recorded within net investment (income) loss in the accompanying Consolidated Statements of Operations.

Available-for-Sale Debt Securities

Available-for-sale debt securities consist of investments in certificates of deposit and corporate bonds, and are recorded at fair value using matrix pricing methods to estimate fair value, which are considered Level 2 inputs of the fair value hierarchy. Unrealized gains or losses on these debt securities are recognized through other comprehensive income.

Interest Rate Derivatives

The fair value of the Company's interest rate derivatives is determined using widely accepted valuation techniques including discounted cash flow analysis on the expected cash flows of each derivative. This analysis reflects the contractual terms of the derivatives, including the period to maturity, and uses observable market-based inputs, including interest rate curves and implied volatilities. The Company incorporates credit valuation adjustments to appropriately reflect both its own nonperformance risk and the respective counterparty's nonperformance risk in the fair value measurements.

Although the Company has determined that the majority of the inputs used to value its derivatives fall within Level 2 of the fair value hierarchy, the credit valuation adjustments associated with its derivatives utilize Level 3 inputs, such as estimates of current credit spreads, to evaluate the likelihood of default by the Company and its counterparties. The Company has assessed the significance of the impact of the credit valuation adjustments on the overall valuation of its derivative positions and has determined that the credit valuation adjustments are not significant to the overall valuation of its interest rate swaps. As a result, the Company determined that its interest rate swaps valuation in its entirety is classified in Level 2 of the fair value hierarchy.

The following tables present the placement in the fair value hierarchy of assets and liabilities that are measured at fair value on a recurring basis:



	Fair Value Measurements as of June 30, 2018
(in thousands)			Quoted Prices in Active Markets for Identical Assets	Significant Other Observable Inputs	Significant Unobservable Inputs
Assets:	Balance		(Level 1)	(Level 2)	(Level 3)
Securities	$	35,079	35,079	—	—
Available-for-sale debt securities	7,593		—	7,593	—
Interest rate derivatives	25,472		—	25,472	—
Total	$	68,144	35,079	33,065	—



	Fair Value Measurements as of December 31, 2017
(in thousands)				Quoted Prices in Active Markets for Identical Assets	Significant Other Observable Inputs		Significant Unobservable Inputs
Assets:	Balance			(Level 1)	(Level 2)		(Level 3)
Securities	$	31,662		31,662	—		—
Available-for-sale debt securities	9,974			—	9,974		—
Interest rate derivatives	14,515			—	14,515		—
Total	$	56,151		31,662	24,489		—

Liabilities:
Interest rate derivatives	$	(177	)	—	(177	)	—

The following tables present the placement in the fair value hierarchy of assets and liabilities that are measured at fair value on a non-recurring basis:

Fair Value Measurements as of June 30, 2018

(in thousands)

Quoted Prices in Active Markets for Identical Assets

Significant Other Observable Inputs

Significant Unobservable Inputs

Total Gains

Assets:

Balance

(Level 1)

(Level 2)

(Level 3)

(Losses)

Long-lived assets held for sale

Properties held for sale

22,054

—

48,254

—

(26,200

)

During the six months ended June 30, 2018, the Company recognized a $28.6 million provision for impairment, net of tax, including $26.2 million impairment on two operating properties classified as held for sale. The impairment of the real estate assets, which are classified as held for sale as of June 30, 2018, was determined based on the expected selling price as compared to the Company's carrying value of its investment.

There were no assets measured at fair value on a nonrecurring basis as of December 31, 2017.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

Equity and Capital

6 Months Ended

Jun. 30, 2018

Equity and Capital [Abstract]

Equity and Capital

Common Stock of the Parent Company

At the Market ("ATM") Program

Under the Parent Company's ATM equity offering program, the Parent Company may sell up to $500 million of common stock at prices determined by the market at the time of sale. There were no shares issued under the ATM equity program during the three and six months ended June 30, 2018 or 2017. As of June 30, 2018, all $500 million of common stock remained available for issuance under this ATM equity program.

Share Repurchase Program

On February 7, 2018, the Company's Board authorized a common share repurchase program under which the Company may repurchase, from time to time, up to $250 million worth of shares of its outstanding common stock through open market purchases and/or in privately negotiated transactions. Any shares purchased will be retired. The program is scheduled to expire on February 6, 2020. The timing and actual number of shares repurchased under the program depend upon marketplace conditions and other factors. The program remains subject to the discretion of the board. As of June 30, 2018, the Company had repurchased 2,145,209 shares for $125.0 million at an average price of $58.24 per share.

Common Units of the Operating Partnership

Common units of the operating partnership are issued or redeemed and retired for each of the shares of Parent Company common stock issued or repurchased and retired, as described above.

Accumulated Other Comprehensive Loss ("AOCI")

The following tables present changes in the balances of each component of AOCI:



	Controlling Interest							Noncontrolling Interest					Total
(in thousands)	Cash Flow Hedges			Unrealized gain (loss) on Available-For-Sale Debt Securities		AOCI		Cash Flow Hedges		Unrealized gain (loss) on Available-For-Sale Debt Securities	AOCI		AOCI
Balance as of December 31, 2016	$	(18,327	)	(19	)	(18,346	)	(301	)	—	(301	)	(18,647	)
Other comprehensive income before reclassifications	(3,770		)	43		(3,727	)	(103	)	—	(103	)	(3,830	)
Amounts reclassified from AOCI ⁽¹⁾	5,638			—		5,638		88		—	88		5,726
Current period other comprehensive income, net	1,868			43		1,911		(15	)	—	(15	)	1,896
Balance as of June 30, 2017	$	(16,459	)	24		(16,435	)	(316	)	—	(316	)	(16,751	)

⁽¹⁾ Amounts recelassified from AOCI into income are presented within Interest expense, net in the Consolidated Statement of Operations.




	Controlling Interest							Noncontrolling Interest					Total
(in thousands)	Cash Flow Hedges			Unrealized gain (loss) on Available-For-Sale Debt Securities		AOCI		Cash Flow Hedges		Unrealized gain (loss) on Available-For-Sale Debt Securities	AOCI		AOCI
Balance as of December 31, 2017	$	(6,262	)	(27	)	(6,289	)	(112	)	—	(112	)	(6,401	)
Opening adjustment due to change in accounting policy ⁽²⁾	12			—		12		2		—	2		14
Adjusted balance as of December 31, 2017	(6,250		)	(27	)	(6,277	)	(110	)	—	(110	)	(6,387	)
Other comprehensive income before reclassifications	13,156			(75	)	13,081		638		—	638		13,719
Amounts reclassified from AOCI ⁽¹⁾	3,513			—		3,513		40		—	40		3,553
Current period other comprehensive income, net	16,669			(75	)	16,594		678		—	678		17,272
Balance as of June 30, 2018	$	10,419		(102	)	10,317		568		—	568		10,885

⁽¹⁾ Amounts recelassified from AOCI into income are presented within Interest expense, net in the Consolidated Statement of Operations.
⁽²⁾ Upon adoption of ASU 2017-12, the Company recognized the immaterial adjustment to opening retained earnings and AOCI for previously recognized hedge ineffectiveness from off-market hedges, as further discussed in note 1.

Stock-Based Compensation	6 Months Ended
Stock-Based Compensation	Jun. 30, 2018
Disclosure of Compensation Related Costs, Share-based Payments [Abstract]
Stock-Based Compensation	Stock-Based Compensation During six months ended June 30, 2018, the Company granted 259,356 shares of restricted stock with a weighted-average grant-date fair value of $63.50 per share. The Company records stock-based compensation expense within general and administrative expenses in the accompanying Consolidated Statements of Operations.

Non-Qualified Deferred Compensation Plan

6 Months Ended

Jun. 30, 2018

Retirement Benefits [Abstract]

Non-Qualified Deferred Compensation Plan

Non-Qualified Deferred Compensation Plan ("NQDCP")

The Company maintains a NQDCP which allows select employees and directors to defer part or all of their cash bonus, director fees, and vested restricted stock awards. All contributions into the participants' accounts are fully vested upon contribution to the NQDCP and are deposited in a Rabbi trust.

The following table reflects the balances of the assets and deferred compensation liabilities of the Rabbi trust and related participant account obligations in the accompanying Consolidated Balance Sheets, excluding Regency stock:



(in thousands)	June 30, 2018		December 31, 2017
Assets:
Equity securities ⁽¹⁾	$	33,061	31,662
Liabilities:
Accounts payable and other liabilities	$	32,811	31,383
⁽¹⁾ Included within Other assets in the accompanying Consolidated Balance Sheets.

Earnings per Share and Unit

6 Months Ended

Jun. 30, 2018

Earnings per Share and Unit [Abstract]

Earnings per Share and Unit

Parent Company Earnings per Share

The following summarizes the calculation of basic and diluted earnings per share:



	Three months ended June 30,			Six months ended June 30,
(in thousands, except per share data)	2018		2017	2018		2017
Numerator:
Income from operations attributable to common stockholders - basic	$	47,841	48,368	$	100,500	15,144
Income from operations attributable to common stockholders - diluted	$	47,841	48,368	$	100,500	15,144
Denominator:
Weighted average common shares outstanding for basic EPS	169,424		170,088	170,056		148,610
Weighted average common shares outstanding for diluted EPS ⁽¹⁾	169,682		170,420	170,291		148,930

Income per common share – basic	$	0.28	0.28	$	0.59	0.10
Income per common share – diluted	$	0.28	0.28	$	0.59	0.10
⁽¹⁾ Includes the dilutive impact of unvested restricted stock and shares issuable under the forward equity offering, that were fully settled on December 14, 2017, using the treasury stock method.

Income allocated to noncontrolling interests of the Operating Partnership has been excluded from the numerator and exchangeable Operating Partnership units have been omitted from the denominator for the purpose of computing diluted earnings per share since the effect of including these amounts in the numerator and denominator would be anti-dilutive. Weighted average exchangeable Operating Partnership units outstanding for the six months ended June 30, 2018 and 2017 were 349,902 and 238,987, respectively.

Operating Partnership Earnings per Unit

The following summarizes the calculation of basic and diluted earnings per unit:



	Three months ended June 30,			Six months ended June 30,
(in thousands, except per share data)	2018		2017	2018		2017
Numerator:
Income from operations attributable to common unit holders - basic	$	47,941	48,472	$	100,712	15,229
Income from operations attributable to common unit holders - diluted	$	47,941	48,472	$	100,712	15,229
Denominator:
Weighted average common units outstanding for basic EPU	169,774		170,410	170,406		148,849
Weighted average common units outstanding for diluted EPU ⁽¹⁾	170,032		170,742	170,641		149,169

Income per common unit – basic	$	0.28	0.28	$	0.59	0.10
Income per common unit – diluted	$	0.28	0.28	$	0.59	0.10
⁽¹⁾ Includes the dilutive impact of unvested restricted stock and shares issuable under the forward equity offering, that were fully settled on December 14, 2017, using the treasury stock method.

Commitments and Contingencies	6 Months Ended
Commitments and Contingencies	Jun. 30, 2018
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	Commitments and Contingencies Litigation The Company is involved in litigation on a number of matters and is subject to certain claims, which arise in the normal course of business, none of which, in the opinion of management, is expected to have a material adverse effect on the Company's consolidated financial position, results of operations, or liquidity. Legal fees are expensed as incurred. Environmental The Company is also subject to numerous environmental laws and regulations as they apply to real estate pertaining to chemicals used by the dry cleaning industry, the existence of asbestos in older shopping centers, and underground petroleum storage tanks. The Company believes that the ultimate disposition of currently known environmental matters will not have a material effect on its financial position, liquidity, or operations. The Company can give no assurance that existing environmental studies with respect to the shopping centers have revealed all potential environmental contaminants or liabilities, that any previous owner, occupant or tenant did not create any material environmental condition not known to it, that the current environmental condition of the shopping centers will not be affected by tenants and occupants, by the condition of nearby properties, or by unrelated third parties, or that changes in applicable environmental laws and regulations or their interpretation will not result in additional environmental liability to the Company. Letters of Credit The Company has the right to issue letters of credit under the Line up to an amount not to exceed $50.0 million, which reduces the credit availability under the Line. These letters of credit are primarily issued as collateral on behalf of its captive insurance program and to facilitate the construction of development projects. As of June 30, 2018 and December 31, 2017, the Company had $9.4 million in letters of credit outstanding.

Organization and Principles of Consolidation (Policies)

6 Months Ended

Jun. 30, 2018

Organization, Consolidation and Presentation of Financial Statements [Abstract]

Consolidation, Variable Interest Entity, Policy

Real Estate Partnerships


•	Those partnerships for which the Partners only have protective rights are considered VIEs under ASC 810, Consolidation. Regency is the primary beneficiary of these VIEs as Regency has power over these partnerships and they operate primarily for the benefit of Regency. As such, Regency consolidates these entities and reports the limited partners’ interest as noncontrolling interests.


•	Those partnerships for which the partners are involved in the day to day decisions and do not have any other aspects that would cause them to be considered VIEs, are evaluated for consolidation using the voting interest model.


◦	Those partnerships in which Regency has a controlling financial interest are consolidated; and the limited partners’ ownership interest and share of net income is recorded as noncontrolling interest.

◦

The major classes of assets, liabilities, and non-controlling equity interests held by the Company's consolidated VIEs, exclusive of the Operating Partnership as a whole, are as follows:



(in thousands)	June 30, 2018		December 31, 2017
Assets
Net real estate investments	$	161,592	172,736
Cash and cash equivalents	3,795		4,993
Liabilities
Notes payable	18,358		16,551
Equity
Limited partners’ interests in consolidated partnerships	17,496		17,572

Revenue Recognition, Services, Management Fees [Policy Text Block]

Revenues and Tenant and Other Receivables

Property and Asset Management Services

Leasing Services

Transaction Services

All income from contracts with the Company's real estate partnerships is included within Management, transaction and other fees on the Consolidated Statements of Operations, as follows:



		Three months ended June 30,				Six months ended June 30,
(in thousands)	Timing of satisfaction of performance obligations	2018		2017		2018		2017
Property management services	Over time	$	3,652	$	3,587	$	7,420	7,006
Asset management services	Over time	1,804		1,763		3,507		3,552
Leasing services	Point in time	1,072		787		1,757		1,617
Other transaction fees	Point in time	359		464		1,361		1,132
Total management, transaction, and other fees		$	6,887	6,601		$	14,045	13,307

Real Estate Sales

Goodwill and Intangible Assets, Goodwill, Policy

Goodwill

New Accounting Pronouncements and Changes in Accounting Principles

Recent Accounting Pronouncements

The following table provides a brief description of recent accounting pronouncements and expected impact on our financial statements:



Standard	Description	Date of adoption	Effect on the financial statements or other significant matters
Recently adopted:
ASU 2017-12, August 2017, Targeted Improvements to Accounting for Hedging Activities	This ASU provides updated guidance to better align a company’s financial reporting for hedging activities with the economic objectives of those activities. The transition guidance provides companies with the option of early adopting the new standard using a modified retrospective transition method in any interim period after issuance of the update, or alternatively requires adoption for fiscal years beginning after December 15, 2018. This adoption method will require the Company to recognize the cumulative effect of initially applying the ASU as an adjustment to accumulated other comprehensive income with a corresponding adjustment to the opening balance of retained earnings as of the beginning of the fiscal year that an entity adopts the update.	January 2018	The Company adopted this ASU on January 1, 2018, using a modified retrospective transition method, which resulted in an immaterial adjustment to opening retained earnings and accumulated other comprehensive income for previously recognized hedge ineffectiveness from off-market hedges.

ASU 2016-01, January 2016, Financial Instruments—Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities	This ASU amends the guidance to classify equity securities with readily-determinable fair values into different categories and requires equity securities to be measured at fair value with changes in the fair value recognized through net income. Equity investments accounted for under the equity method are not included in the scope of this amendment.	January 2018	The Company's adoption of this standard did not have a significant impact on its results of operations, financial condition or cash flows as the company has an insignificant amount of equity securities within the scope of this standard. The adoption resulted in reduced disclosure requirements around methodology and significant assumptions used in fair value measurements.

ASU 2016-15, August 2016, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments	This ASU makes eight targeted changes to how cash receipts and cash payments are presented and classified in the statement of cash flows. Early adoption is permitted on a retrospective basis.	January 2018	The adoption of this ASU did not result in a change to the Company's Consolidated Statements of Cash Flows.



Standard	Description	Date of adoption	Effect on the financial statements or other significant matters
ASU 2016-18, November 2016, Statement of Cash Flows (Topic 230): Restricted Cash	This ASU requires entities to show the changes in the total of cash, cash equivalents, restricted cash, and restricted cash equivalents in the statement of cash flows. The amendments in this ASU should be applied using a retrospective transition method to each period presented.	January 2018	The adoption of this ASU resulted in a change to the classification and presentation of changes in restricted cash on its cash flow statement, which was not material. There was no change to the Company's financial condition or results of operations as a result of adopting this ASU. Upon adoption, and for the six months ended June 30, 2018, net cash provided by operating activities increased by $1.2 million and net cash used in investing activities decreased by $1.6 million, with a corresponding increase in cash and cash equivalents, and restricted cash within the Consolidated Statements of Cash Flows.

ASU 2017-05, February 2017, Clarifying the Scope of Asset Derecognition Guidance and Accounting for Partial Sales of Nonfinancial Assets (Subtopic 610-20)	ASU 2017-05 clarifies that ASC 610-20 applies to all nonfinancial assets (including real estate) for which the counterparty is not a customer and requires an entity to derecognize a nonfinancial asset in a partial sale transaction when it ceases to have a controlling financial interest in the asset and has transferred control of the asset. Once an entity transfers control of the nonfinancial asset, the entity is required to measure any non-controlling interest it receives or retains at fair value. Under the current guidance, a partial sale is recognized and carryover basis is used for the retained interest resulting in only partial gain recognition by the entity, however, the new guidance eliminates the use of carryover basis and generally requires the full gain be recognized. The standard allows for either "full retrospective" adoption, meaning the standard is applied to all of the periods presented, or "modified retrospective" adoption, meaning the standard is applied only to the most recent period presented in the financial statements.	January 2018	Sales of real estate assets are now accounted for under Subtopic 610-20, which provides for revenue recognition based on transfer of control. For normal arms length property sales to unrelated parties, where Regency has no retained interest in the property, the Company will continue to recognize the full gain or loss upon transfer of control. For property sales in which Regency retains a noncontrolling interest in the property, fair value recognition for the retained noncontrolling interest is now required, which will result in full gain recognition upon loss of control. The Company applied the modified retrospective adoption method, and recognized through opening retained earnings $30.9 million of previously deferred gains from property sales to entities in which Regency had continuing involvement, resulting in a corresponding increase to the value of the Company's investment in those partnerships.



Standard	Description	Date of adoption	Effect on the financial statements or other significant matters
Not yet adopted:


Leases (Topic 842) and related updates: ASU 2016-02, February 2016, Leases (Topic 842) ASU 2018-10, July 2018: Codification Improvements to Topic 842, Leases ASU 2018-11, July 2018, Leases (Topic 842): Targeted Improvements	Topic 842 amends the existing accounting standards for lease accounting, including requiring lessees to recognize most leases on their balance sheets. It also makes targeted changes to lessor accounting, including a change to the treatment of internal leasing costs and legal costs, which can no longer be capitalized. The provisions of these ASUs are effective as of January 1, 2019, with early adoption permitted. Topic 842 provides a modified retrospective transition approach for all leases existing at, or entered into after, the date of initial application, with an option to use certain transition relief or an additional transition method, allowing for initial application at the date of adoption and a cumulative-effect adjustment to opening retained earnings. Additionally, lessors are provided with a practical expedient, elected by class of underlying asset, to account for lease and non-lease components as a single lease component if certain criteria are met. Lessors that make these elections will be required to provide additional disclosures.	January 2019	The Company is evaluating the impact this standard will have on its financial statements and related disclosures. Upon adoption, the Company will recognize lease obligations for its ground and office leases with a corresponding right of use asset. The Company will continue to recognize a single lease expense for its existing operating leases, currently included in Operating and maintenance expenses and General and administrative expenses, respectively, in the Consolidated Statements of Operations. Ground leases entered or acquired subsequent to the adoption date will likely be considered finance leases, which will result in a slightly accelerated impact to earnings reflected in amortization expense and interest expense. Capitalization of internal leasing costs and legal costs will no longer be permitted upon the adoption of this standard, which will result in an increase in Total operating expenses in the Consolidated Statements of Operations in the period of adoption and prospectively. Historic capitalization of internal leasing costs was $3.2 million and $10.4 million during the six months ended June 30, 2018 and the year ended December 31, 2017, respectively. Historic capitalization of legal costs was $0.8 million and $1.2 million during the six months ended June 30, 2018 and the year ended December 31, 2017, respectively, including our pro rata share recognized through Equity in income of investments in real estate partnerships. The Company will continue its evaluation of the accounting standard, additional impacts of adoption, and changes in presentation and disclosure requirements.

ASU 2016-13, June 2016, Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments	This ASU replaces the incurred loss impairment methodology in current GAAP with a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates. This ASU also applies to how the Company determines its allowance for doubtful accounts on tenant receivables.	January 2020	The Company is evaluating the alternative methods of adoption and the impact it will have on its financial statements and related disclosures.

Organization and Principles of Consolidation Recent Accounting Pronouncements (Tables)

6 Months Ended

Jun. 30, 2018

Accounting Changes and Error Corrections [Abstract]

Schedule of New Accounting Pronouncements and Changes in Accounting Principles [Table Text Block]

Recent Accounting Pronouncements

The following table provides a brief description of recent accounting pronouncements and expected impact on our financial statements:



Standard	Description	Date of adoption	Effect on the financial statements or other significant matters
Recently adopted:
ASU 2017-12, August 2017, Targeted Improvements to Accounting for Hedging Activities	This ASU provides updated guidance to better align a company’s financial reporting for hedging activities with the economic objectives of those activities. The transition guidance provides companies with the option of early adopting the new standard using a modified retrospective transition method in any interim period after issuance of the update, or alternatively requires adoption for fiscal years beginning after December 15, 2018. This adoption method will require the Company to recognize the cumulative effect of initially applying the ASU as an adjustment to accumulated other comprehensive income with a corresponding adjustment to the opening balance of retained earnings as of the beginning of the fiscal year that an entity adopts the update.	January 2018	The Company adopted this ASU on January 1, 2018, using a modified retrospective transition method, which resulted in an immaterial adjustment to opening retained earnings and accumulated other comprehensive income for previously recognized hedge ineffectiveness from off-market hedges.

ASU 2016-01, January 2016, Financial Instruments—Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities	This ASU amends the guidance to classify equity securities with readily-determinable fair values into different categories and requires equity securities to be measured at fair value with changes in the fair value recognized through net income. Equity investments accounted for under the equity method are not included in the scope of this amendment.	January 2018	The Company's adoption of this standard did not have a significant impact on its results of operations, financial condition or cash flows as the company has an insignificant amount of equity securities within the scope of this standard. The adoption resulted in reduced disclosure requirements around methodology and significant assumptions used in fair value measurements.

ASU 2016-15, August 2016, Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments	This ASU makes eight targeted changes to how cash receipts and cash payments are presented and classified in the statement of cash flows. Early adoption is permitted on a retrospective basis.	January 2018	The adoption of this ASU did not result in a change to the Company's Consolidated Statements of Cash Flows.



Standard	Description	Date of adoption	Effect on the financial statements or other significant matters
ASU 2016-18, November 2016, Statement of Cash Flows (Topic 230): Restricted Cash	This ASU requires entities to show the changes in the total of cash, cash equivalents, restricted cash, and restricted cash equivalents in the statement of cash flows. The amendments in this ASU should be applied using a retrospective transition method to each period presented.	January 2018	The adoption of this ASU resulted in a change to the classification and presentation of changes in restricted cash on its cash flow statement, which was not material. There was no change to the Company's financial condition or results of operations as a result of adopting this ASU. Upon adoption, and for the six months ended June 30, 2018, net cash provided by operating activities increased by $1.2 million and net cash used in investing activities decreased by $1.6 million, with a corresponding increase in cash and cash equivalents, and restricted cash within the Consolidated Statements of Cash Flows.

ASU 2017-05, February 2017, Clarifying the Scope of Asset Derecognition Guidance and Accounting for Partial Sales of Nonfinancial Assets (Subtopic 610-20)	ASU 2017-05 clarifies that ASC 610-20 applies to all nonfinancial assets (including real estate) for which the counterparty is not a customer and requires an entity to derecognize a nonfinancial asset in a partial sale transaction when it ceases to have a controlling financial interest in the asset and has transferred control of the asset. Once an entity transfers control of the nonfinancial asset, the entity is required to measure any non-controlling interest it receives or retains at fair value. Under the current guidance, a partial sale is recognized and carryover basis is used for the retained interest resulting in only partial gain recognition by the entity, however, the new guidance eliminates the use of carryover basis and generally requires the full gain be recognized. The standard allows for either "full retrospective" adoption, meaning the standard is applied to all of the periods presented, or "modified retrospective" adoption, meaning the standard is applied only to the most recent period presented in the financial statements.	January 2018	Sales of real estate assets are now accounted for under Subtopic 610-20, which provides for revenue recognition based on transfer of control. For normal arms length property sales to unrelated parties, where Regency has no retained interest in the property, the Company will continue to recognize the full gain or loss upon transfer of control. For property sales in which Regency retains a noncontrolling interest in the property, fair value recognition for the retained noncontrolling interest is now required, which will result in full gain recognition upon loss of control. The Company applied the modified retrospective adoption method, and recognized through opening retained earnings $30.9 million of previously deferred gains from property sales to entities in which Regency had continuing involvement, resulting in a corresponding increase to the value of the Company's investment in those partnerships.



Standard	Description	Date of adoption	Effect on the financial statements or other significant matters
Not yet adopted:


Leases (Topic 842) and related updates: ASU 2016-02, February 2016, Leases (Topic 842) ASU 2018-10, July 2018: Codification Improvements to Topic 842, Leases ASU 2018-11, July 2018, Leases (Topic 842): Targeted Improvements	Topic 842 amends the existing accounting standards for lease accounting, including requiring lessees to recognize most leases on their balance sheets. It also makes targeted changes to lessor accounting, including a change to the treatment of internal leasing costs and legal costs, which can no longer be capitalized. The provisions of these ASUs are effective as of January 1, 2019, with early adoption permitted. Topic 842 provides a modified retrospective transition approach for all leases existing at, or entered into after, the date of initial application, with an option to use certain transition relief or an additional transition method, allowing for initial application at the date of adoption and a cumulative-effect adjustment to opening retained earnings. Additionally, lessors are provided with a practical expedient, elected by class of underlying asset, to account for lease and non-lease components as a single lease component if certain criteria are met. Lessors that make these elections will be required to provide additional disclosures.	January 2019	The Company is evaluating the impact this standard will have on its financial statements and related disclosures. Upon adoption, the Company will recognize lease obligations for its ground and office leases with a corresponding right of use asset. The Company will continue to recognize a single lease expense for its existing operating leases, currently included in Operating and maintenance expenses and General and administrative expenses, respectively, in the Consolidated Statements of Operations. Ground leases entered or acquired subsequent to the adoption date will likely be considered finance leases, which will result in a slightly accelerated impact to earnings reflected in amortization expense and interest expense. Capitalization of internal leasing costs and legal costs will no longer be permitted upon the adoption of this standard, which will result in an increase in Total operating expenses in the Consolidated Statements of Operations in the period of adoption and prospectively. Historic capitalization of internal leasing costs was $3.2 million and $10.4 million during the six months ended June 30, 2018 and the year ended December 31, 2017, respectively. Historic capitalization of legal costs was $0.8 million and $1.2 million during the six months ended June 30, 2018 and the year ended December 31, 2017, respectively, including our pro rata share recognized through Equity in income of investments in real estate partnerships. The Company will continue its evaluation of the accounting standard, additional impacts of adoption, and changes in presentation and disclosure requirements.

ASU 2016-13, June 2016, Financial Instruments—Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments	This ASU replaces the incurred loss impairment methodology in current GAAP with a methodology that reflects expected credit losses and requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates. This ASU also applies to how the Company determines its allowance for doubtful accounts on tenant receivables.	January 2020	The Company is evaluating the alternative methods of adoption and the impact it will have on its financial statements and related disclosures.

Real Estate Investments (Tables)

6 Months Ended

Jun. 30, 2018

Business Acquisition [Line Items]

Property, Plant and Equipment [Table Text Block]

The following table details the components of Land, building and improvements in the Consolidated Balance Sheets:



(in thousands)	June 30, 2018		December 31, 2017
Land	$	4,219,729	4,235,032
Land improvements	595,260		556,140
Buildings	5,088,953		4,999,378
Building and tenant improvements	848,610		787,880
Total Land, building and improvements	$	10,752,552	10,578,430

Schedule of business acquisitions

The following table details the shopping centers acquired or land acquired or leased for development:



(in thousands)		Six months ended June 30, 2018
Date Purchased	Property Name	City/State	Property Type	Ownership	Purchase Price	Debt Assumed, Net of Premiums	Intangible Assets	Intangible Liabilities
1/2/18	Ballard Blocks I	Seattle, WA	Operating	49.9%	$54,500	—	3,668	2,350
1/2/18	Ballard Blocks II	Seattle, WA	Development	49.9%	4,000	—	—	—
1/5/18	The District at Metuchen	Metuchen, NJ	Operating	20%	33,830	—	3,147	1,905
1/10/18	Hewlett Crossing I & II	Hewlett, NY	Operating	100%	30,900	9,700	3,114	1,868
4/3/2018	Rivertowns Square	Dobbs Ferry, NY	Operating	100%	68,933	—	4,993	5,554
5/18/2018	Crossroads Commons II	Boulder, CO	Operating	20%	10,500	—	447	769
Total property acquisitions					$202,663	9,700	15,369	12,446

(in thousands)		Six months ended June 30, 2017
Date Purchased	Property Name	City/State	Property Type	Ownership	Purchase Price	Debt Assumed, Net of Premiums	Intangible Assets	Intangible Liabilities
3/6/17	The Field at Commonwealth	Chantilly, VA	Development	100%	$9,500	—	—	—
3/8/17	Pinecrest Place ⁽¹⁾	Miami, FL	Development	100%	—	—	—	—
4/13/17	Mellody Farm ⁽²⁾	Chicago, IL	Development	100%	26,200	—	—	—
6/28/17	Concord outparcel ⁽³⁾	Miami, FL	Operating	100%	350	—	—	—
Total property acquisitions					$36,050	—	—	—
⁽¹⁾ The Company leased 10.67 acres for a ground up development.
⁽²⁾ The Operating Partnership issued 195,732 partnership units values at $13.1 million as partial consideration for the purchase.
⁽³⁾ The Company purchased a 0.67 acre vacant outparcel adjacent to the Company's existing operating Concord Shopping Plaza.

Equity One Inc. [Member]

Business Acquisition [Line Items]

Schedule of business acquisitions



(in thousands)	Final Purchase Price Allocation
Land	$	2,865,053
Building and improvements	2,619,163
Properties in development	68,744
Properties held for sale	19,600
Investments in unconsolidated real estate partnerships	99,666
Real estate assets	5,672,226
Cash, accounts receivable and other assets	112,909
Intangible assets	458,877
Goodwill	332,384
Total assets acquired	6,576,396
Notes payable	757,399
Accounts payable, accrued expenses, and other liabilities	122,217
Lease intangible liabilities	503,675
Total liabilities assumed	1,383,291
Total purchase price	$	5,193,105

The following table provides the components that made up the total purchase price for the Equity One merger:



(in thousands, except stock price)	Purchase Price
Shares of common stock issued for merger	65,379
Closing stock price on March 1, 2017	$	68.40
Value of common stock issued for merger	$	4,471,808
Other cash payments	721,297
Total purchase price	$	5,193,105

Schedule of Finite-Lived Intangible Assets Acquired as Part of Business Combination



(in years)		Weighted Average Amortization / Accretion Period
Assets:
In-place leases		10.8
Above-market leases		7.8
Below-market ground leases		55.3
Liabilities:
Below-market leases		24.9

Business Acquisition, Pro Forma Information

Pro forma Information



		Three months ended June 30,		Six months ended June 30,
(in thousands, except per share data)		2017		2017
Total revenues		$	261,314	$	526,488
Income from operations	⁽¹⁾	56,435		123,832
Net income attributable to common stockholders	⁽¹⁾	54,624		109,434
Income per common share - basic		0.32		0.64
Income per common share - diluted		0.32		0.64
⁽¹⁾The pro forma earnings for the three and six months ended June 30, 2017, were adjusted to exclude $4.7 million and $97.3 million of merger costs, respectively.

Property Dispositions (Tables)

6 Months Ended

Jun. 30, 2018

Discontinued Operations and Disposal Groups [Abstract]

Schedule of properties disposed of

The following table provides a summary of consolidated shopping centers and land parcels disposed of during the periods set forth below:



	Three months ended June 30,						Six months ended June 30,
(in thousands, except number sold data)	2018			2017			2018			2017
Net proceeds from sale of real estate investments	$	38,781		$	13,481		$	42,008		$	15,230
Gain on sale of real estate, net of tax	$	1,123		$	4,366		$	1,219		$	4,781
Provision for impairment of real estate sold	$	2,974		$	—		$	3,348		$	—
Number of operating properties sold	3			1			4			1
Number of land parcels sold	3			5			3			7
Percent interest sold	100		%	100		%	100		%	100		%

- Definition

Tabular disclosure of information related to a disposal group. Includes, but is not limited to, a discontinued operation, disposal classified as held-for-sale or disposed of by means other than sale or disposal of an individually significant component.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
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-URI http://asc.fasb.org/extlink&oid=109222650&loc=SL51721659-107760

Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef
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Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 360
-SubTopic 10
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-URI http://asc.fasb.org/extlink&oid=109226691&loc=d3e2941-110230

Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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-URI http://asc.fasb.org/extlink&oid=109222650&loc=SL51721675-107760

Reference 9: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 7
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Reference 10: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=109222650&loc=d3e1361-107760

Reference 11: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
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-URI http://asc.fasb.org/extlink&oid=109222650&loc=SL51721671-107760

Reference 12: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
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Reference 13: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 4A
-URI http://asc.fasb.org/extlink&oid=109222650&loc=SL51721663-107760

+ Details

Other Assets Other Assets (Tables)

3 Months Ended

Jun. 30, 2018

Other Assets [Abstract]

Schedule of Other Assets [Table Text Block]

The following table represents the components of Other assets in the accompanying Consolidated Balance Sheets:



(in thousands)	June 30, 2018		December 31, 2017
Goodwill	$	320,639	331,884
Investments	42,672		41,636
Prepaid and other	25,771		30,332
Derivative assets	25,472		14,515
Furniture, fixtures, and equipment, net	7,010		6,123
Deferred financing costs, net	7,933		2,637
Total other assets	$	429,497	427,127

Schedule of Goodwill [Table Text Block]

The following table presents the goodwill balances and activity during the year to date periods ended:



(in thousands)	June 30, 2018			December 31, 2017
Beginning of year balance	$	331,884		—
Goodwill resulting from Equity One merger	500			331,884
Goodwill allocated to properties sold	(381		)	—
Impairment ⁽¹⁾	(9,220		)	—
Goodwill allocated to properties held for sale	(2,144		)	—
End of period balance	$	320,639		331,884
⁽¹⁾ See note 7, Fair value measurements, for additional information about the impairment loss associated with properties held and used or held for sale.

Notes Payable and Unsecured Credit Facilities (Tables)

6 Months Ended

Jun. 30, 2018

Debt Disclosure [Abstract]

Schedule of Debt

The Company’s outstanding debt consisted of the following:



(in thousands)	Weighted Average Contractual Rate	Weighted Average Effective Rate	June 30, 2018			December 31, 2017
Notes payable:
Fixed rate mortgage loans	5.1%	4.4%	$	516,149		520,193
Variable rate mortgage loans	3.3%	3.5%	127,727		⁽¹⁾	125,866
Fixed rate unsecured public and private debt	4.0%	4.4%	2,474,126			2,325,656
Total notes payable			3,118,002			2,971,715
Unsecured credit facilities:
Line of Credit (the "Line") ⁽²⁾	2.8%	3.0%	150,000			60,000
Term loans	2.4%	2.5%	563,498			563,262
Total unsecured credit facilities			713,498			623,262
Total debt outstanding			$	3,831,500		3,594,977

⁽¹⁾ Includes five mortgages whose interest rates vary on LIBOR based formulas. Three of these variable rate loans have interest rate swaps in place to fix the interest rates at a range of 2.8% to 4.07%.
⁽²⁾ Weighted average effective and contractual rate for the Line is calculated based on a fully drawn Line balance.

Schedule of maturities of long-term debt

As of June 30, 2018, scheduled principal payments and maturities on notes payable and unsecured credit facilities were as follows:



(in thousands)	June 30, 2018
Scheduled Principal Payments and Maturities by Year:	Scheduled Principal Payments		Mortgage Loan Maturities	Unsecured Maturities ⁽¹⁾		Total
2018	$	5,173	106,117	—		111,290
2019	9,519		23,525	—		33,044
2020	11,287		78,580	300,000		389,867
2021	11,600		66,751	250,000		328,351
2022	11,799		5,848	715,000		732,647
Beyond 5 Years	37,056		269,216	1,950,000		2,256,272
Unamortized debt premium/(discount) and issuance costs	—		7,405	(27,376	)	(19,971	)
Total	$	86,434	557,442	3,187,624		3,831,500

⁽¹⁾ Includes unsecured public and private debt and unsecured credit facilities.

Derivatives (Tables)

6 Months Ended

Jun. 30, 2018

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Schedule of derivative instruments

The following table summarizes the terms and fair values of the Company's derivative financial instruments, as well as their classification on the Consolidated Balance Sheets:



						Fair Value
(in thousands)						Assets (Liabilities)⁽¹⁾
Effective Date	Maturity Date	Notional Amount		Bank Pays Variable Rate of	Regency Pays Fixed Rate of	June 30, 2018		December 31, 2017
4/3/17	12/2/20	$	300,000	1 Month LIBOR with Floor	1.824%	$	5,890	1,804
8/1/16	1/5/22	265,000		1 Month LIBOR with Floor	1.053%	15,022		10,744
4/7/16	4/1/23	20,000		1 Month LIBOR	1.303%	1,243		801
12/1/16	11/1/23	33,000		1 Month LIBOR	1.490%	2,002		1,166
6/2/17	6/2/27	37,500		1 Month LIBOR with Floor	2.366%	1,315		(177	)
						$	25,472	14,338

⁽¹⁾ Derivatives in an asset position are included within other assets in the accompanying Consolidated Balance Sheets, while those in a liability position are included within accounts payable and other liabilities.

Derivative Instruments, Gain (Loss)

The following table represents the effect of the derivative financial instruments on the accompanying consolidated financial statements:



Location and Amount of Gain (Loss) Recognized in OCI on Derivative					Location and Amount of Gain (Loss) Reclassified from AOCI into Income						Total Interest Expense presented in the Consolidated Statements of Operations in which the effects of cash flow hedges are recorded
	Three months ended June 30,					Three months ended June 30,						Three months ended June 30,
(in thousands)	2018		2017			2018			2017			2018		2017
Interest rate swaps	$	4,289	(3,805	)	Interest expense	$	(1,415	)	(3,071	)	Interest expense, net	$	38,074	35,407

Location and Amount of Gain (Loss) Recognized in OCI on Derivative					Location and Amount of Gain (Loss) Reclassified from AOCI into Income						Total Interest Expense presented in the Consolidated Statements of Operations in which the effects of cash flow hedges are recorded
	Six months ended June 30,					Six months ended June 30,						Six months ended June 30,
(in thousands)	2018		2017			2018			2017			2018		2017
Interest rate swaps	$	13,794	(3,873	)	Interest expense	$	(3,553	)	(5,726	)	Interest expense, net	$	74,859	62,606

Fair Value Measurements (Tables)

6 Months Ended

Jun. 30, 2018

Fair Value Disclosures [Abstract]

Summary of balance sheet fair values



	June 30, 2018			December 31, 2017
(in thousands)	Carrying Amount		Fair Value	Carrying Amount		Fair Value
Financial assets:
Notes receivable	$	—	—	$	15,803	15,660
Financial liabilities:
Notes payable	$	3,118,002	3,081,052	$	2,971,715	3,058,044
Unsecured credit facilities	$	713,498	715,000	$	623,262	625,000

Summary of assets measured on recurring basis

The following tables present the placement in the fair value hierarchy of assets and liabilities that are measured at fair value on a recurring basis:



	Fair Value Measurements as of June 30, 2018
(in thousands)			Quoted Prices in Active Markets for Identical Assets	Significant Other Observable Inputs	Significant Unobservable Inputs
Assets:	Balance		(Level 1)	(Level 2)	(Level 3)
Securities	$	35,079	35,079	—	—
Available-for-sale debt securities	7,593		—	7,593	—
Interest rate derivatives	25,472		—	25,472	—
Total	$	68,144	35,079	33,065	—



	Fair Value Measurements as of December 31, 2017
(in thousands)				Quoted Prices in Active Markets for Identical Assets	Significant Other Observable Inputs		Significant Unobservable Inputs
Assets:	Balance			(Level 1)	(Level 2)		(Level 3)
Securities	$	31,662		31,662	—		—
Available-for-sale debt securities	9,974			—	9,974		—
Interest rate derivatives	14,515			—	14,515		—
Total	$	56,151		31,662	24,489		—

Liabilities:
Interest rate derivatives	$	(177	)	—	(177	)	—

Fair Value Measurements, Nonrecurring [Table Text Block]

The following tables present the placement in the fair value hierarchy of assets and liabilities that are measured at fair value on a non-recurring basis:

Fair Value Measurements as of June 30, 2018

(in thousands)

Quoted Prices in Active Markets for Identical Assets

Significant Other Observable Inputs

Significant Unobservable Inputs

Total Gains

Assets:

Balance

(Level 1)

(Level 2)

(Level 3)

(Losses)

Long-lived assets held for sale

Properties held for sale

22,054

—

48,254

—

(26,200

)

Equity and Capital (Tables)

6 Months Ended

Jun. 30, 2018

Equity and Capital [Abstract]

Summary of accumulated other comprehensive loss

The following tables present changes in the balances of each component of AOCI:



	Controlling Interest							Noncontrolling Interest					Total
(in thousands)	Cash Flow Hedges			Unrealized gain (loss) on Available-For-Sale Debt Securities		AOCI		Cash Flow Hedges		Unrealized gain (loss) on Available-For-Sale Debt Securities	AOCI		AOCI
Balance as of December 31, 2016	$	(18,327	)	(19	)	(18,346	)	(301	)	—	(301	)	(18,647	)
Other comprehensive income before reclassifications	(3,770		)	43		(3,727	)	(103	)	—	(103	)	(3,830	)
Amounts reclassified from AOCI ⁽¹⁾	5,638			—		5,638		88		—	88		5,726
Current period other comprehensive income, net	1,868			43		1,911		(15	)	—	(15	)	1,896
Balance as of June 30, 2017	$	(16,459	)	24		(16,435	)	(316	)	—	(316	)	(16,751	)

⁽¹⁾ Amounts recelassified from AOCI into income are presented within Interest expense, net in the Consolidated Statement of Operations.




	Controlling Interest							Noncontrolling Interest					Total
(in thousands)	Cash Flow Hedges			Unrealized gain (loss) on Available-For-Sale Debt Securities		AOCI		Cash Flow Hedges		Unrealized gain (loss) on Available-For-Sale Debt Securities	AOCI		AOCI
Balance as of December 31, 2017	$	(6,262	)	(27	)	(6,289	)	(112	)	—	(112	)	(6,401	)
Opening adjustment due to change in accounting policy ⁽²⁾	12			—		12		2		—	2		14
Adjusted balance as of December 31, 2017	(6,250		)	(27	)	(6,277	)	(110	)	—	(110	)	(6,387	)
Other comprehensive income before reclassifications	13,156			(75	)	13,081		638		—	638		13,719
Amounts reclassified from AOCI ⁽¹⁾	3,513			—		3,513		40		—	40		3,553
Current period other comprehensive income, net	16,669			(75	)	16,594		678		—	678		17,272
Balance as of June 30, 2018	$	10,419		(102	)	10,317		568		—	568		10,885

⁽¹⁾ Amounts recelassified from AOCI into income are presented within Interest expense, net in the Consolidated Statement of Operations.
⁽²⁾ Upon adoption of ASU 2017-12, the Company recognized the immaterial adjustment to opening retained earnings and AOCI for previously recognized hedge ineffectiveness from off-market hedges, as further discussed in note 1.

Non-Qualified Deferred Compensation Plan (Tables)

6 Months Ended

Jun. 30, 2018

Retirement Benefits [Abstract]

Deferred Compensation Arrangement with Individual Disclosure, Postretirement Benefits [Table Text Block]



(in thousands)	June 30, 2018		December 31, 2017
Assets:
Equity securities ⁽¹⁾	$	33,061	31,662
Liabilities:
Accounts payable and other liabilities	$	32,811	31,383
⁽¹⁾ Included within Other assets in the accompanying Consolidated Balance Sheets.

Earnings per Share and Unit (Tables)

6 Months Ended

Jun. 30, 2018

Parent Company [Member]

Schedule of earnings per share

The following summarizes the calculation of basic and diluted earnings per share:



	Three months ended June 30,			Six months ended June 30,
(in thousands, except per share data)	2018		2017	2018		2017
Numerator:
Income from operations attributable to common stockholders - basic	$	47,841	48,368	$	100,500	15,144
Income from operations attributable to common stockholders - diluted	$	47,841	48,368	$	100,500	15,144
Denominator:
Weighted average common shares outstanding for basic EPS	169,424		170,088	170,056		148,610
Weighted average common shares outstanding for diluted EPS ⁽¹⁾	169,682		170,420	170,291		148,930

Income per common share – basic	$	0.28	0.28	$	0.59	0.10
Income per common share – diluted	$	0.28	0.28	$	0.59	0.10
⁽¹⁾ Includes the dilutive impact of unvested restricted stock and shares issuable under the forward equity offering, that were fully settled on December 14, 2017, using the treasury stock method.

Partnership Interest [Member]

Schedule of earnings per share

The following summarizes the calculation of basic and diluted earnings per unit:



	Three months ended June 30,			Six months ended June 30,
(in thousands, except per share data)	2018		2017	2018		2017
Numerator:
Income from operations attributable to common unit holders - basic	$	47,941	48,472	$	100,712	15,229
Income from operations attributable to common unit holders - diluted	$	47,941	48,472	$	100,712	15,229
Denominator:
Weighted average common units outstanding for basic EPU	169,774		170,410	170,406		148,849
Weighted average common units outstanding for diluted EPU ⁽¹⁾	170,032		170,742	170,641		149,169

Income per common unit – basic	$	0.28	0.28	$	0.59	0.10
Income per common unit – diluted	$	0.28	0.28	$	0.59	0.10
⁽¹⁾ Includes the dilutive impact of unvested restricted stock and shares issuable under the forward equity offering, that were fully settled on December 14, 2017, using the treasury stock method.

Organization and Principles of Consolidation (Details)	6 Months Ended
Organization and Principles of Consolidation (Details)	Jun. 30, 2018 retail_shopping_center
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Document Period End Date	Jun. 30, 2018
Operations commenced date	Dec. 31, 1993
Wholly Owned Properties [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Number of Real Estate Properties	309
Unconsolidated Properties [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Number of Real Estate Properties	119
Parent Company [Member]
Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items]
Ownership percentage of outstanding common partnership units	99.80%

Organization and Principles of Consolidation Variable Interest Entities (Details)
$ in Thousands

6 Months Ended

Jun. 30, 2018

USD ($)

retail_shopping_center

Dec. 31, 2017

USD ($)

Accounting Policies [Abstract]

Schedule of Variable Interest Entities

The major classes of assets, liabilities, and non-controlling equity interests held by the Company's consolidated VIEs, exclusive of the Operating Partnership as a whole, are as follows:



(in thousands)	June 30, 2018		December 31, 2017
Assets
Net real estate investments	$	161,592	172,736
Cash and cash equivalents	3,795		4,993
Liabilities
Notes payable	18,358		16,551
Equity
Limited partners’ interests in consolidated partnerships	17,496		17,572

Variable Interest Entity [Line Items]

Document Period End Date

Jun. 30, 2018

Variable Interest Entity, Consolidated, Carrying Amount, Liabilities

$ 18,358

$ 16,551

Noncontrolling Interest in Variable Interest Entity

$ 17,496

17,572

Minimum [Member]

Variable Interest Entity [Line Items]

Equity Method Investment, Accretion Period

10 years

Maximum [Member]

Variable Interest Entity [Line Items]

Equity Method Investment, Accretion Period

40 years

Real Estate [Member]

Variable Interest Entity [Line Items]

Variable Interest Entity, Consolidated, Carrying Amount, Assets

$ 161,592

172,736

Cash and Cash Equivalents [Member]

Variable Interest Entity [Line Items]

Variable Interest Entity, Consolidated, Carrying Amount, Assets

$ 3,795

$ 4,993

Partially Owned Properties [Member]

Variable Interest Entity [Line Items]

Number of Real Estate Properties | retail_shopping_center

130

Consolidated Properties [Member]

Variable Interest Entity [Line Items]

Number of Real Estate Properties | retail_shopping_center

Organization and Principles of Consolidation Revenues and Tenant and Other Receivables (Details) - USD ($)	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Management, transaction, and other fee [Member]
Schedule of management, transaction, and other fees [Line Items]
Accounts Receivable, Net	$ 9,100,000		$ 9,100,000
Parent Company [Member]
Schedule of management, transaction, and other fees [Line Items]
Property Management Fee Revenue	6,887,000	$ 6,601,000	14,045,000	$ 13,307,000
Accounts Receivable, Net	155,540,000		155,540,000		$ 170,985,000
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets					30,903,000
Parent Company [Member] \| Property management services [Member]
Schedule of management, transaction, and other fees [Line Items]
Property Management Fee Revenue	3,652,000	3,587,000	7,420,000	7,006,000
Parent Company [Member] \| Asset management services [Member]
Schedule of management, transaction, and other fees [Line Items]
Property Management Fee Revenue	1,804,000	1,763,000	3,507,000	3,552,000
Parent Company [Member] \| Leasing services [Member]
Schedule of management, transaction, and other fees [Line Items]
Property Management Fee Revenue	1,072,000	787,000	1,757,000	1,617,000
Parent Company [Member] \| Other transaction fees [Member]
Schedule of management, transaction, and other fees [Line Items]
Property Management Fee Revenue	359,000	$ 464,000	1,361,000	$ 1,132,000
Parent Company [Member] \| Management, transaction, and other fee [Member]
Schedule of management, transaction, and other fees [Line Items]
Accounts Receivable, Net					$ 8,700,000
Accounting Standards Update 2017-05 [Member]
Schedule of management, transaction, and other fees [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets	$ 30,900,000		$ 30,900,000

Organization and Principles of Consolidation Recent Accounting Pronouncements (Details) - USD ($)	Jun. 30, 2018	Dec. 31, 2017
Accounting Standards Update 2017-05 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets	$ 30,900,000
Salaries expense [Member] \| Accounting Standards Update 2016-02 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets	3,200,000	$ 10,400,000
Legal expense [Member] \| Accounting Standards Update 2016-02 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets	800,000	$ 1,200,000
Operating Activities [Member] \| Accounting Standards Update 2016-18 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets	1,200,000
Investing Activities [Member] \| Accounting Standards Update 2016-18 [Member]
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets	$ 1,600,000

Real Estate Investments Land, buildings, and improvements (Details) - Parent Company [Member] - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Property, Plant and Equipment [Line Items]
Land	$ 4,219,729	$ 4,235,032
Land Improvements	595,260	556,140
Buildings	5,088,953	4,999,378
Building improvements	848,610	787,880
Property, Plant and Equipment, Gross	$ 10,752,552	$ 10,578,430

Real Estate Investments Business Acquisitions (Details) shares in Thousands, $ in Thousands		6 Months Ended
	Mar. 01, 2017 USD ($) property shares	Jun. 30, 2018 USD ($) shares	Jun. 30, 2017 USD ($)
Business Acquisition [Line Items]
Purchase Price		$ 202,663	$ 36,050
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities		$ 9,700	0
Parent Company [Member]
Business Acquisition [Line Items]
Conversion of Stock, Conversion Ratio		0.45
Shares of common stock issued for merger (in shares) \| shares		65,500
Off-Market Favorable Lease [Member]
Business Acquisition [Line Items]
Intangible assets		$ 15,369	0
Off-Market Lease, Unfavorable [Member]
Business Acquisition [Line Items]
Intangible assets		$ 12,446	$ 0
Ballard Blocks I [Member]
Business Acquisition [Line Items]
Date Purchased		Jan. 02, 2018
Property Name		Ballard Blocks I
City/State		Seattle, WA
Business Acquisition, Percentage of Voting Interests Acquired		49.90%
Purchase Price		$ 54,500
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities		0
Ballard Blocks I [Member] \| Off-Market Favorable Lease [Member]
Business Acquisition [Line Items]
Intangible assets		3,668
Ballard Blocks I [Member] \| Off-Market Lease, Unfavorable [Member]
Business Acquisition [Line Items]
Intangible assets		$ 2,350
Ballard Blocks II [Member]
Business Acquisition [Line Items]
Date Purchased		Jan. 02, 2018
Property Name		Ballard Blocks II
City/State		Seattle, WA
Business Acquisition, Percentage of Voting Interests Acquired		49.90%
Purchase Price		$ 4,000
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities		0
Ballard Blocks II [Member] \| Off-Market Favorable Lease [Member]
Business Acquisition [Line Items]
Intangible assets		0
Ballard Blocks II [Member] \| Off-Market Lease, Unfavorable [Member]
Business Acquisition [Line Items]
Intangible assets		$ 0
Metuchen [Member]
Business Acquisition [Line Items]
Date Purchased		Jan. 05, 2018
Property Name		The District at Metuchen
City/State		Metuchen, NJ
Business Acquisition, Percentage of Voting Interests Acquired		20.00%
Purchase Price		$ 33,830
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities		0
Metuchen [Member] \| Off-Market Favorable Lease [Member]
Business Acquisition [Line Items]
Intangible assets		3,147
Metuchen [Member] \| Off-Market Lease, Unfavorable [Member]
Business Acquisition [Line Items]
Intangible assets		$ 1,905
Hewlett Crossing I & II [Member]
Business Acquisition [Line Items]
Date Purchased		Jan. 10, 2018
Property Name		Hewlett Crossing I & II
City/State		Hewlett, NY
Business Acquisition, Percentage of Voting Interests Acquired		100.00%
Purchase Price		$ 30,900
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities		9,700
Hewlett Crossing I & II [Member] \| Off-Market Favorable Lease [Member]
Business Acquisition [Line Items]
Intangible assets		3,114
Hewlett Crossing I & II [Member] \| Off-Market Lease, Unfavorable [Member]
Business Acquisition [Line Items]
Intangible assets		$ 1,868
Rivertowns [Member]
Business Acquisition [Line Items]
Date Purchased		Apr. 03, 2018
Property Name		Rivertowns Square
City/State		Dobbs Ferry, NY
Business Acquisition, Percentage of Voting Interests Acquired		100.00%
Purchase Price		$ 68,933
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities		0
Rivertowns [Member] \| Off-Market Favorable Lease [Member]
Business Acquisition [Line Items]
Intangible assets		4,993
Rivertowns [Member] \| Off-Market Lease, Unfavorable [Member]
Business Acquisition [Line Items]
Intangible assets		$ 5,554
Crossroad Commons II [Member]
Business Acquisition [Line Items]
Date Purchased		May 18, 2018
Property Name		Crossroads Commons II
City/State		Boulder, CO
Business Acquisition, Percentage of Voting Interests Acquired		20.00%
Purchase Price		$ 10,500
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities		0
Crossroad Commons II [Member] \| Off-Market Favorable Lease [Member]
Business Acquisition [Line Items]
Intangible assets		447
Crossroad Commons II [Member] \| Off-Market Lease, Unfavorable [Member]
Business Acquisition [Line Items]
Intangible assets		$ 769
The Field at Commonwealth [Member]
Business Acquisition [Line Items]
Date Purchased			Mar. 06, 2017
Property Name			The Field at Commonwealth
City/State			Chantilly, VA
Business Acquisition, Percentage of Voting Interests Acquired			100.00%
Purchase Price			$ 9,500
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities			0
The Field at Commonwealth [Member] \| Off-Market Favorable Lease [Member]
Business Acquisition [Line Items]
Intangible assets			0
The Field at Commonwealth [Member] \| Off-Market Lease, Unfavorable [Member]
Business Acquisition [Line Items]
Intangible assets			$ 0
Pinecrest Place [Member] [Member]
Business Acquisition [Line Items]
Date Purchased			Mar. 08, 2017
Property Name			Pinecrest Place (1)
City/State			Miami, FL
Business Acquisition, Percentage of Voting Interests Acquired			100.00%
Purchase Price			$ 0
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities			0
Pinecrest Place [Member] [Member] \| Off-Market Favorable Lease [Member]
Business Acquisition [Line Items]
Intangible assets			0
Pinecrest Place [Member] [Member] \| Off-Market Lease, Unfavorable [Member]
Business Acquisition [Line Items]
Intangible assets			$ 0
Market Common Clarendon [Member]
Business Acquisition [Line Items]
Date Purchased			Apr. 13, 2017
Property Name			Mellody Farm (2)
City/State			Chicago, IL
Business Acquisition, Percentage of Voting Interests Acquired			100.00%
Purchase Price			$ 26,200
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities			0
Market Common Clarendon [Member] \| Off-Market Favorable Lease [Member]
Business Acquisition [Line Items]
Intangible assets			0
Market Common Clarendon [Member] \| Off-Market Lease, Unfavorable [Member]
Business Acquisition [Line Items]
Intangible assets			$ 0
Klahanie Shopping Center [Member]
Business Acquisition [Line Items]
Date Purchased			Jun. 28, 2017
Property Name			Concord outparcel (3)
City/State			Miami, FL
Business Acquisition, Percentage of Voting Interests Acquired			100.00%
Purchase Price			$ 350
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities			0
Klahanie Shopping Center [Member] \| Off-Market Favorable Lease [Member]
Business Acquisition [Line Items]
Intangible assets			0
Klahanie Shopping Center [Member] \| Off-Market Lease, Unfavorable [Member]
Business Acquisition [Line Items]
Intangible assets			$ 0
Equity One Inc. [Member]
Business Acquisition [Line Items]
Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities	$ 1,383,291
Intangible assets	$ 458,877
Shares of common stock issued for merger (in shares) \| shares	65,379
Number of real estate properties acquired \| property	121
Equity One Inc. [Member] \| Partially Owned Properties [Member]
Business Acquisition [Line Items]
Number of real estate properties acquired \| property	8

Real Estate Investments Total Purchase Price (Details) - Equity One Inc. [Member] $ / shares in Units, shares in Thousands, $ in Thousands	Mar. 01, 2017 USD ($) $ / shares shares
Business Acquisition [Line Items]
Shares of common stock issued for merger (in shares) \| shares	65,379
Closing stock price (in usd per share) \| $ / shares	$ 68.40
Value of common stock issued for merger	$ 4,471,808
Other cash payments	721,297
Total purchase price	$ 5,193,105

Real Estate Investments Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Jun. 30, 2017	Mar. 01, 2017
Business Acquisition [Line Items]
Total liabilities assumed	$ 9,700	$ 0
Equity One Inc. [Member]
Business Acquisition [Line Items]
Land			$ 2,865,053
Building and improvements			2,619,163
Properties in development			68,744
Properties held for sale			19,600
Investments in unconsolidated real estate partnerships			99,666
Real estate assets			5,672,226
Cash, accounts receivable and other assets			112,909
Intangible assets			458,877
Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Net			332,384
Total assets acquired			6,576,396
Notes payable			757,399
Accounts payable, accrued expenses, and other liabilities			122,217
Lease intangible liabilities			503,675
Total liabilities assumed			1,383,291
Total purchase price			$ 5,193,105

Real Estate Investments Acquired Finite-Lived Intangibles Acquired as Part of a Business Combination (Details) - Equity One Inc. [Member]	Mar. 01, 2017
Leases, Acquired-in-Place [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	10 years 9 months 18 days
Above Market Leases [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	7 years 9 months 18 days
Below Market Ground Rent Lease [Member] [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	55 years 3 months 18 days

Real Estate Investments Business Acquisitions, Pro Forma Information (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended	6 Months Ended
	Jun. 30, 2017	Jun. 30, 2017
Business Acquisition, Pro Forma Information [Line Items]
Business Acquisition, Pro Forma Revenue	$ 261,314	$ 526,488
Business Acquisition, Pro Forma Income (Loss) from Continuing Operations, Net of Tax	56,435	123,832
Business Acquisition, Pro Forma Net Income (Loss)	$ 54,624	$ 109,434
Business Acquisition, Pro Forma Earnings Per Share, Basic	$ 0.0032	$ 0.0064
Business Acquisition, Pro Forma Earnings Per Share, Diluted	$ 0.0032	$ 0.0064

Property Dispositions (Details) $ in Thousands	3 Months Ended		6 Months Ended
Property Dispositions (Details) $ in Thousands	Jun. 30, 2018 USD ($) property	Jun. 30, 2017 USD ($) property	Jun. 30, 2018 USD ($) property	Jun. 30, 2017 USD ($) property
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale of real estate investments	$ 38,781	$ 13,481	$ 42,008	$ 15,230
Gain (Loss) on Sale of Properties, Net of Applicable Income Taxes	1,123	4,366	1,219	4,781
Provision for impairment, net of tax	$ 2,974	$ 0	$ 3,348	$ 0
Wholly Owned Properties [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Limited Liability Company (LLC) or Limited Partnership (LP), Managing Member or General Partner, Ownership Interest	100.00%	100.00%	100.00%	100.00%
Parent Company [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from sale of real estate investments			$ 42,508	$ 13,270
Gain (Loss) on Sale of Properties, Net of Applicable Income Taxes	$ 1,123	$ 4,366	1,219	4,781
Provision for impairment, net of tax	$ 12,533	$ 0	$ 28,587	$ 0
Operating Segments [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of Real Estate Properties Sold \| property	3	1	4	1
Land [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of Real Estate Properties Sold \| property	3	5	3	7

Other Assets Other Assets (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017	Dec. 31, 2016
Other Current Assets [Line Items]
Goodwill	$ 320,639	$ 331,884	$ 0
Investments	42,672	41,636
Other Prepaid Expense, Current	25,771	30,332
Derivative Asset	25,472	14,515
Furniture and Fixtures, Gross	7,010	6,123
Deferred Costs and Other Assets	7,933	2,637
Parent Company [Member]
Other Current Assets [Line Items]
Other Assets	$ 429,497	$ 427,127

Other Assets Goodwill (Details) - USD ($) $ in Thousands	6 Months Ended	12 Months Ended
Other Assets Goodwill (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017	Dec. 31, 2016
Goodwill [Line Items]
Goodwill	$ 320,639	$ 331,884	$ 0
Goodwill, Other Increase (Decrease)	(381)	0
Goodwill, Impairment Loss	(9,220)	0
Goodwill, Written off Related to Sale of Business Unit	2,144	0
Equity One Inc. [Member]
Goodwill [Line Items]
Goodwill, Purchase Accounting Adjustments	$ 500
Goodwill, Acquired During Period		$ 331,884

Schedule of Debt (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Long-term Debt	$ 3,831,500	$ 3,594,977
Fixed Rate Mortgage Loans [Member]
Debt Instrument [Line Items]
Long-term Debt	516,149	520,193
Notes Payable to Banks [Member]
Debt Instrument [Line Items]
Long-term Debt	3,118,002	2,971,715
Unsecured Debt [Member]
Debt Instrument [Line Items]
Total credit facilities	713,498	623,262
Long-term Debt	2,474,126	2,325,656
Line of Credit [Member] \| Unsecured Debt [Member]
Debt Instrument [Line Items]
Total credit facilities	150,000	60,000
Term Loan [Member] \| Unsecured Debt [Member]
Debt Instrument [Line Items]
Total credit facilities	563,498	563,262
London Interbank Offered Rate (LIBOR) [Member] \| Variable Rate Mortgage Loans [Member]
Debt Instrument [Line Items]
Long-term Debt	$ 127,727	$ 125,866
Contractual Rate [Member] \| Fixed Rate Mortgage Loans [Member]
Debt Instrument [Line Items]
Debt, Weighted Average Interest Rate	5.10%
Contractual Rate [Member] \| Variable Rate Mortgage Loans [Member]
Debt Instrument [Line Items]
Debt, Weighted Average Interest Rate	3.30%
Contractual Rate [Member] \| Unsecured Debt [Member]
Debt Instrument [Line Items]
Debt, Weighted Average Interest Rate	4.00%
Contractual Rate [Member] \| Line of Credit [Member]
Debt Instrument [Line Items]
Debt, Weighted Average Interest Rate	2.80%
Contractual Rate [Member] \| Term Loan [Member]
Debt Instrument [Line Items]
Debt, Weighted Average Interest Rate	2.40%
Effective Rate [Member] \| Fixed Rate Mortgage Loans [Member]
Debt Instrument [Line Items]
Debt, Weighted Average Interest Rate	4.40%
Effective Rate [Member] \| Variable Rate Mortgage Loans [Member]
Debt Instrument [Line Items]
Debt, Weighted Average Interest Rate	3.50%
Effective Rate [Member] \| Unsecured Debt [Member]
Debt Instrument [Line Items]
Debt, Weighted Average Interest Rate	4.40%
Effective Rate [Member] \| Line of Credit [Member]
Debt Instrument [Line Items]
Debt, Weighted Average Interest Rate	3.00%
Effective Rate [Member] \| Term Loan [Member]
Debt Instrument [Line Items]
Debt, Weighted Average Interest Rate	2.50%

Notes Payable and Unsecured Credit Facilities Schedule of maturities of long-term debt (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Debt Instrument [Line Items]
Long-term Debt, Maturities, Repayments of Principal, Remainder of Fiscal Year	$ 111,290
Long-term Debt, Maturities, Repayments of Principal in Year Two	33,044
Long-term Debt, Maturities, Repayments of Principal in Year Three	389,867
Long-term Debt, Maturities, Repayments of Principal in Year Four	328,351
Long-term Debt, Maturities, Repayments of Principal in Year Five	732,647
Long-term Debt, Maturities, Repayments of Principal after Year Five	2,256,272
Debt Instrument, Unamortized Discount (Premium), Net	19,971
Long-term Debt	3,831,500	$ 3,594,977
Unsecured Debt [Member]
Debt Instrument [Line Items]
Long-term Debt	2,474,126	$ 2,325,656
Scheduled Principal Payments [Member] \| Mortgages [Member]
Debt Instrument [Line Items]
Long-term Debt, Maturities, Repayments of Principal, Remainder of Fiscal Year	5,173
Long-term Debt, Maturities, Repayments of Principal in Year Two	9,519
Long-term Debt, Maturities, Repayments of Principal in Year Three	11,287
Long-term Debt, Maturities, Repayments of Principal in Year Four	11,600
Long-term Debt, Maturities, Repayments of Principal in Year Five	11,799
Long-term Debt, Maturities, Repayments of Principal after Year Five	37,056
Debt Instrument, Unamortized Discount (Premium), Net	0
Long-term Debt	86,434
Mortgage Loan Maturities [Member] \| Mortgages [Member]
Debt Instrument [Line Items]
Long-term Debt, Maturities, Repayments of Principal, Remainder of Fiscal Year	106,117
Long-term Debt, Maturities, Repayments of Principal in Year Two	23,525
Long-term Debt, Maturities, Repayments of Principal in Year Three	78,580
Long-term Debt, Maturities, Repayments of Principal in Year Four	66,751
Long-term Debt, Maturities, Repayments of Principal in Year Five	5,848
Long-term Debt, Maturities, Repayments of Principal after Year Five	269,216
Debt Instrument, Unamortized Discount (Premium), Net	(7,405)
Long-term Debt	557,442
Unsecured Maturities [Member] \| Unsecured Debt [Member]
Debt Instrument [Line Items]
Long-term Debt, Maturities, Repayments of Principal, Remainder of Fiscal Year	0
Long-term Debt, Maturities, Repayments of Principal in Year Two	0
Long-term Debt, Maturities, Repayments of Principal in Year Three	300,000
Long-term Debt, Maturities, Repayments of Principal in Year Four	250,000
Long-term Debt, Maturities, Repayments of Principal in Year Five	715,000
Long-term Debt, Maturities, Repayments of Principal after Year Five	1,950,000
Debt Instrument, Unamortized Discount (Premium), Net	27,376
Long-term Debt	$ 3,187,624

Notes Payable and Unsecured Credit Facilities Narrative (Details) ratio in Millions, $ in Millions	6 Months Ended
	Jun. 30, 2018 USD ($)	Apr. 02, 2018 USD ($)	Mar. 09, 2018 USD ($)
Debt Instrument [Line Items]
Repayments of Lines of Credit	$ 60.0
Senior Notes [Member] \| Notes Due March 2028 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount			$ 300.0
Debt Instrument, Interest Rate, Stated Percentage			0.00%
Debt Instrument, Discount Percent			0.0
Senior Notes [Member] \| Notes Due June 2020 [Member]
Debt Instrument [Line Items]
Debt Instrument, Face Amount		$ 150.0
Debt Instrument, Interest Rate, Stated Percentage		0.00%
Notes Payable to Banks [Member] \| 150M 6% Notes [Member]
Debt Instrument [Line Items]
Repayments of Unsecured Debt	163.2
Accordion Feature [Member]
Debt Instrument [Line Items]
Line of Credit Facility, Increase in Capacity	1,250.0
Mortgage Loan Maturities [Member] \| Mortgages [Member]
Debt Instrument [Line Items]
Long-term Debt, Maturities, Repayments of Principal in Year Two	$ 129.6

Derivatives (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
Derivatives (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Derivative [Line Items]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax	$ 4,289	$ (3,805)	$ 13,794	$ (3,873)
Amount reclassified from accumulated other comprehensive loss	(1,415)	(3,071)	(3,553)	(5,726)
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months			$ 2,500
Derivative $300M Term [Member]
Derivative [Line Items]
Derivative, Inception Date			Apr. 03, 2017
Derivative, Maturity Date			Dec. 02, 2020
Derivative, Notional Amount	$ 300,000		$ 300,000
Derivative, Description of Variable Rate Basis			1 Month LIBOR with Floor
Derivative, Fixed Interest Rate	1.824%		1.824%
Interest Rate Cash Flow Hedge Asset at Fair Value	$ (5,890)		$ (5,890)		$ (1,804)
Derivatives 200K @ 1.04770% and 65K @ 1.07000% [Member] [Domain]
Derivative [Line Items]
Derivative, Inception Date			Aug. 01, 2016
Derivative, Maturity Date			Jan. 05, 2022
Derivative, Notional Amount	$ 265,000		$ 265,000
Derivative, Description of Variable Rate Basis			1 Month LIBOR with Floor
Derivative, Fixed Interest Rate	1.053%		1.053%
Interest Rate Cash Flow Hedge Asset at Fair Value	$ (15,022)		$ (15,022)		(10,744)
Derivative @ 1.30250% 20.0M [Member]
Derivative [Line Items]
Derivative, Inception Date			Apr. 07, 2016
Derivative, Maturity Date			Apr. 01, 2023
Derivative, Notional Amount	$ 20,000		$ 20,000
Derivative, Description of Variable Rate Basis			1 Month LIBOR
Derivative, Fixed Interest Rate	1.3025%		1.3025%
Interest Rate Cash Flow Hedge Asset at Fair Value	$ (1,243)		$ (1,243)		(801)
Derivative $33M Swap [Member]
Derivative [Line Items]
Derivative, Inception Date			Dec. 01, 2016
Derivative, Maturity Date			Nov. 01, 2023
Derivative, Notional Amount	$ 33,000		$ 33,000
Derivative, Description of Variable Rate Basis			1 Month LIBOR
Derivative, Fixed Interest Rate	1.49%		1.49%
Interest Rate Cash Flow Hedge Asset at Fair Value	$ (2,002)		$ (2,002)		(1,166)
Derivative @ 2.36600% 37.5K [Member] [Domain]
Derivative [Line Items]
Derivative, Inception Date			Jun. 02, 2017
Derivative, Maturity Date			Jun. 02, 2027
Derivative, Notional Amount	$ 37,500		$ 37,500
Derivative, Description of Variable Rate Basis			1 Month LIBOR with Floor
Derivative, Fixed Interest Rate	2.366%		2.366%
Interest Rate Cash Flow Hedge Asset at Fair Value	$ (1,315)		$ (1,315)
Interest Rate Cash Flow Hedge Liability at Fair Value					177
Swap [Member]
Derivative [Line Items]
Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months			8,400
Fair Value, Measurements, Recurring [Member]
Derivative [Line Items]
Interest Rate Cash Flow Hedge Asset at Fair Value	(25,472)		(25,472)		(14,515)
Interest Rate Cash Flow Hedge Liability at Fair Value					177
Fair Value, Inputs, Level 2 [Member] \| Fair Value, Measurements, Recurring [Member]
Derivative [Line Items]
Interest Rate Cash Flow Hedge Asset at Fair Value	(25,472)		(25,472)		(14,515)
Interest Rate Cash Flow Hedge Liability at Fair Value					177
Interest Rate Cash Flow Hedge Derivative at Fair Value, Net	25,472		25,472		$ 14,338
Parent Company [Member]
Derivative [Line Items]
Other Comprehensive Income (Loss), Unrealized Gain (Loss) on Derivatives Arising During Period, before Tax	4,289	(3,805)	13,794	(3,873)
Interest Expense	$ 38,074	$ 35,407	$ 74,859	$ 62,606

Fair Value Measurements (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
Fair Value Measurements (Details) - USD ($) $ in Thousands	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes receivable	$ 0		$ 0		$ 15,803
Provision for impairment, net of tax	(2,974)	$ 0	(3,348)	$ 0
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Trading, and Equity Securities, FV-NI	35,079		35,079		31,662
Available-for-sale Securities	7,593		7,593		9,974
Interest Rate Derivative Assets, at Fair Value	25,472		25,472		14,515
Total	68,144		68,144		56,151
Derivative instruments, at fair value					(177)
Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total	22,054		22,054
Provision for impairment, net of tax			(26,200)
Fair Value, Inputs, Level 1 [Member] \| Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Trading, and Equity Securities, FV-NI	35,079		35,079		31,662
Available-for-sale Securities	0		0		0
Interest Rate Derivative Assets, at Fair Value	0		0		0
Total	35,079		35,079		31,662
Derivative instruments, at fair value					0
Fair Value, Inputs, Level 1 [Member] \| Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total	0		0
Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes Payable, Fair Value	3,081,052		3,081,052		3,058,044
Fair Value, Inputs, Level 2 [Member] \| Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Trading, and Equity Securities, FV-NI	0		0		0
Available-for-sale Securities	7,593		7,593		9,974
Interest Rate Derivative Assets, at Fair Value	25,472		25,472		14,515
Total	33,065		33,065		24,489
Derivative instruments, at fair value					(177)
Fair Value, Inputs, Level 2 [Member] \| Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total	48,254		48,254
Fair Value, Inputs, Level 3 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes Receivable, Fair Value	0		0		15,660
Fair Value, Inputs, Level 3 [Member] \| Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Debt Securities, Trading, and Equity Securities, FV-NI	0		0		0
Available-for-sale Securities	0		0		0
Interest Rate Derivative Assets, at Fair Value	0		0		0
Total	0		0		0
Derivative instruments, at fair value					0
Fair Value, Inputs, Level 3 [Member] \| Fair Value, Measurements, Recurring [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Total	0		0
Unsecured Credit Facilities [Member] \| Fair Value, Inputs, Level 2 [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Unsecured credit facilities, Fair Value	715,000		715,000		625,000
Parent Company [Member]
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Notes payable	3,118,002		3,118,002		2,971,715
Unsecured credit facilities	713,498		713,498		$ 623,262
Provision for impairment, net of tax	$ (12,533)	$ 0	$ (28,587)	$ 0

Equity and Capital Equity and Capital - Common Stock (Details)	6 Months Ended
	Jun. 30, 2018 USD ($) shares
Class of Stock [Line Items]
Stock Repurchase Program Expiration Date	Feb. 06, 2020
Maximum [Member]
Class of Stock [Line Items]
Equity Issuances, Common Shares Authorized for Issuance \| shares	500,000,000
Parent Company [Member] \| Common Stock [Member]
Class of Stock [Line Items]
Stock Repurchased and Retired During Period, Shares \| shares	2,145,209
Stock Repurchased and Retired During Period, Value	$ (124,989,000)
Parent Company [Member] \| Common Stock [Member] \| Accumulated Other Comprehensive Income (Loss) [Member]
Class of Stock [Line Items]
Stock Repurchased and Retired During Period, Value	0
Parent Company [Member] \| Common Stock [Member] \| Average share price [Member]
Class of Stock [Line Items]
Stock Repurchased and Retired During Period, Value	$ (58.24)

Equity and Capital - Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Dec. 31, 2017
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets			$ 12
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	$ 13,156	$ (3,770)
Accumulated Other Comprehensive Income Loss [Roll Forward]
Beginning balance	(6,262)	(18,327)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	3,513	5,638
Current period other comprehensive income, net	16,669	1,868
Ending balance	10,419	(16,459)
Accumulated Net Unrealized Investment Gain (Loss) [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets			0
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(75)	43
Accumulated Other Comprehensive Income Loss [Roll Forward]
Beginning balance	(27)	(19)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	0	0
Current period other comprehensive income, net	(75)	43
Ending balance	(102)	24
Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets			12
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	13,081	(3,727)
Accumulated Other Comprehensive Income Loss [Roll Forward]
Beginning balance	(6,289)	(18,346)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	3,513	5,638
Current period other comprehensive income, net	16,594	1,911
Ending balance	10,317	(16,435)
Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Noncontrolling Interest [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets			2
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	638	(103)
Accumulated Other Comprehensive Income Loss [Roll Forward]
Beginning balance	(112)	(301)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	40	88
Current period other comprehensive income, net	678	(15)
Ending balance	568	(316)
Accumulated Net Investment Gain (Loss) Attributable to Noncontrolling Interest [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets			0
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	0	0
Accumulated Other Comprehensive Income Loss [Roll Forward]
Beginning balance	0	0
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	0	0
Current period other comprehensive income, net	0	0
Ending balance	0	0
AOCI Attributable to Noncontrolling Interest [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets			2
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	638	(103)
Accumulated Other Comprehensive Income Loss [Roll Forward]
Beginning balance	(112)	(301)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	40	88
Current period other comprehensive income, net	678	(15)
Ending balance	568	(316)
AOCI Including Portion Attributable to Noncontrolling Interest [Member]
Accumulated Other Comprehensive Income Loss [Line Items]
New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets			$ 14
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	13,719	(3,830)
Accumulated Other Comprehensive Income Loss [Roll Forward]
Beginning balance	(6,401)	(18,647)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	3,553	5,726
Current period other comprehensive income, net	17,272	1,896
Ending balance	10,885	$ (16,751)
Accounting Standards Update 2017-12 [Member] \| Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges [Member]
Accumulated Other Comprehensive Income Loss [Roll Forward]
Beginning balance	(6,250)
Accounting Standards Update 2017-12 [Member] \| Accumulated Net Unrealized Investment Gain (Loss) [Member]
Accumulated Other Comprehensive Income Loss [Roll Forward]
Beginning balance	(27)
Accounting Standards Update 2017-12 [Member] \| Accumulated Other Comprehensive Income (Loss) [Member]
Accumulated Other Comprehensive Income Loss [Roll Forward]
Beginning balance	(6,277)
Accounting Standards Update 2017-12 [Member] \| Accumulated Net Gain (Loss) from Cash Flow Hedges Attributable to Noncontrolling Interest [Member]
Accumulated Other Comprehensive Income Loss [Roll Forward]
Beginning balance	(110)
Accounting Standards Update 2017-12 [Member] \| Accumulated Net Investment Gain (Loss) Attributable to Noncontrolling Interest [Member]
Accumulated Other Comprehensive Income Loss [Roll Forward]
Beginning balance	0
Accounting Standards Update 2017-12 [Member] \| AOCI Attributable to Noncontrolling Interest [Member]
Accumulated Other Comprehensive Income Loss [Roll Forward]
Beginning balance	(110)
Accounting Standards Update 2017-12 [Member] \| AOCI Including Portion Attributable to Noncontrolling Interest [Member]
Accumulated Other Comprehensive Income Loss [Roll Forward]
Beginning balance	$ (6,387)

Stock-Based Compensation (Details) - Restricted Stock [Member]	6 Months Ended
	Jun. 30, 2018 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Shares granted \| shares	259,356
Weighted average grant date fair value (in dollars per share) \| $ / shares	$ 63.50

Non-Qualified Deferred Compensation Plan (Details) - Parent Company [Member] - USD ($) $ in Thousands	Jun. 30, 2018	Dec. 31, 2017
Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items]
Deferred Compensation Plan Assets	$ 33,061	$ 31,662
Deferred Compensation Liability, Current and Noncurrent	$ 32,811	$ 31,383

Earnings per Share and Unit (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Income per common unit - diluted
Weighted Average Limited Partnership Units Outstanding, Basic			349,902	238,987
Parent Company [Member]
Earnings Per Share [Abstract]
Net income attributable to common stockholders	$ 47,841	$ 48,368	$ 100,500	$ 15,144
Weighted average common units outstanding for basic EPU (in shares)	169,424,000	170,088,000	170,056,000	148,610,000
Weighted average common units outstanding for diluted EPU (in shares)	169,682,000	170,420,000	170,291,000	148,930,000
Income per common share/unit - basic:
Continuing operations (in dollars per share)	$ 0.28	$ 0.28	$ 0.59	$ 0.10
Income per common share/unit - diluted:
Continuing operations (in dollars per share)	$ 0.28	$ 0.28	$ 0.59	$ 0.10
Partnership Interest [Member]
Earnings Per Share [Abstract]
Weighted average common units outstanding for basic EPU (in shares)	169,774,000	170,410,000	170,406,000	148,849,000
Weighted average common units outstanding for diluted EPU (in shares)	170,032,000	170,742,000	170,641,000	149,169,000
Income per common unit - basic
Continuing operations (in dollars per share)	$ 0.28	$ 0.28	$ 0.59	$ 0.10
Income per common unit - diluted
Continuing operations (in dollars per share)	$ 0.28	$ 0.28	$ 0.59	$ 0.10
Continuing Operations [Member] \| Parent Company [Member]
Earnings Per Share [Abstract]
Net income attributable to common stockholders	$ 47,841	$ 48,368	$ 100,500	$ 15,144
Net income for common stock unit/holders - diluted	47,841	48,368	100,500	15,144
Continuing Operations [Member] \| Partnership Interest [Member]
Earnings Per Share [Abstract]
Net income attributable to common stockholders	47,941	48,472	100,712	15,229
Net income for common stock unit/holders - diluted	$ 47,941	$ 48,472	$ 100,712	$ 15,229

Label	Element	Value
Partnership Interest [Member]
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	$ 17,879,000
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	49,381,000
Parent Company [Member]
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	17,879,000
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents	us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents	$ 49,381,000
Equity One Inc. [Member] \| Acquired Lease Intangible Liabilities [Member]
Weighted Average Accretion Period of Intangible Liabilities	reg_WeightedAverageAccretionPeriodOfIntangibleLiabilities	24 years 10 months 24 days

Consolidated Statements of Operations (Parenthetical) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Parent Company [Member]
Trading Securities, Change in Unrealized Holding Gain (Loss)	$ (291)	$ (11)	$ 84	$ (863)
Partnership Interest [Member]
Trading Securities, Change in Unrealized Holding Gain (Loss)	$ (291)	$ (11)	$ 84	$ (863)

Consolidated Statements of Cash Flows (Parenthetical) - USD ($) $ in Thousands	6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017
Parent Company [Member]
Capitalized interest	$ 4,150	$ 3,290
Partnership Interest [Member]
Capitalized interest	$ 4,150	$ 3,290

Commitments and Contingencies, Letters of Credit (Details) - USD ($)	Jun. 30, 2018	Dec. 31, 2017
Commitments and Contingencies Disclosure [Abstract]
Line of Credit Facility, Maximum Borrowing Capacity	$ 50,000,000
Letters of Credit Outstanding, Amount	$ 9,400,000	$ 9,400,000

Description

Date of adoption

Effect on the financial statements or other significant matters

Revenue from Contracts with Customers (Topic 606) and related updates:

ASU 2014-09, May 2014, Revenue from Contracts with Customers (Topic 606)

ASU 2016-08, March 2016, Revenue from Contracts with Customers (Topic 606): Principal versus Agent Considerations

ASU 2016-10, April 2016, Revenue from Contracts with Customers (Topic 606): Identifying Performance Obligations and Licensing

ASU 2016-12, May 2016, Revenue from Contracts with Customers (Topic 606): Narrow-Scope Improvements and Practical Expedients

ASU 2016-19, December 2016, Technical Corrections and Improvements

ASU 2016-20, December 2016, Technical Corrections and Improvements to Topic 606 Revenue from Contracts With Customers

In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers ("Topic 606"). The objective of Topic 606 is to establish a single comprehensive model for entities to use in accounting for revenue arising from contracts with customers. It supersedes most of the existing revenue guidance, including industry-specific guidance. The core principal of this new standard is that an entity should recognize revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services. In applying Topic 606, companies will perform a five-step analysis of transactions to determine when and how revenue is recognized.

Topic 606 applies to all contracts with customers except those that are within the scope of other topics in the FASB's accounting standards codification. As a result, Topic 606 does not apply to revenue from lease contracts until the adoption of the new leases standard, Topic 842, in January 2019.

The standard allows for either "full retrospective" adoption, meaning the standard is applied to all of the periods presented, or "modified retrospective" adoption, meaning the standard is applied only to the most recent period presented in the financial statements.

January 2018

The Company utilized the modified retrospective method of adoption, applying the standard to only 2018, and not restating prior periods presented in future financial statements.

The majority of the Company's revenue originates from lease contracts and will be subject to Topic 842 to be adopted in January 2019.

Beyond revenue from lease contracts, the Company's primary revenue stream, subject to Topic 606 is Management, transaction, and other fees from the Company's real estate partnerships, primarily in the form of property management services, asset management services, and leasing services. The Company evaluated all partnership service relationships and did not identify any changes in the timing or amount of revenue recognition from these revenue streams.

The adoption of Topic 606 resulted in additional disclosures to enable users of financial statements to understand the nature, amount, timing, and uncertainty of revenue and cash flows arising from contracts with customers.