Document and Entity Information In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2011	May 04, 2011
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2011
Document Fiscal Year Focus	2011
Document Fiscal Period Focus	Q1
Entity Registrant Name	REGENCY CENTERS CORP
Entity Central Index Key	0000910606
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		81,867,549
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, unless otherwise specified	3 Months Ended	12 Months Ended
	Mar. 31, 2011	Dec. 31, 2010
Parent Company [Member]
Assets [Abstract]
Land	$ 1,094,816	$ 1,093,700
Buildings and improvements	2,291,514	2,284,522
Development in Process	614,612	610,932
Gross real estate investments at cost	4,000,942	3,989,154
Less: accumulated depreciation	729,133	700,878
Total	3,271,809	3,288,276
Investments in real estate partnerships	408,238	428,592
Net real estate investments	3,680,047	3,716,868
Cash and Cash Equivalents, at Carrying Value	65,764	22,460
Accounts receivable, net of allowance for doubtful accounts of $4,224 and $4,819 at March 31, 2011 and December 31, 2010, respectively	26,597	36,600
Straight-line rent receivable, net of allowance of $1,553 and $1,396 at March 31, 2011 and December 31, 2010, respectively	46,815	45,241
Notes receivable	35,931	35,931
Deferred costs, less accumulated amortization of $65,362 and $69,158 at March 31, 2011 and December 31, 2010, respectively	62,635	63,165
Acquired lease intangible assets, less accumulated amortization of $15,057 and $13,996 at March 31, 2011 and December 31, 2010, respectively	17,401	18,219
Trading securities held in trust, at fair value	21,661	20,891
Other Assets	34,321	35,164
Total assets	3,991,172	3,994,539
Liabilities:
Notes payable	1,922,471	2,084,469
Unsecured credit facilities	0	10,000
Accounts payable and other liabilities	120,949	138,196
Acquired lease intangible liabilities, less accumulated accretion of $11,288 and $11,010 at March 31, 2011 and December 31, 2010, respectively	6,404	6,682
Tenants' security and escrow deposits	10,876	10,790
Total liabilities	2,060,700	2,250,137
Commitments and contingencies
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract]
Preferred stock, $.01 par value per share, 30,000,000 shares authorized; 11,000,000 Series 3-5 shares issued and outstanding at March 31, 2011 and December 31, 2010 with liquidation preferences of $25 per share	275,000	275,000
Common stock $.01 par value per share, 150,000,000 shares authorized; 89,895,007 and 81,886,872 shares issued at March 31, 2011 and December 31, 2010, respectively	899	819
Treasury stock at cost, 350,974 and 347,482 shares held at March 31, 2011 and December 31, 2010, respectively	(16,292)	(16,175)
Additional paid in capital	2,256,674	2,039,612
Accumulated other comprehensive loss	(78,523)	(80,885)
Distributions in excess of net income	(568,526)	(533,194)
Total stockholders' equity	1,869,232	1,685,177
Series D preferred units, aggregate redemption value of $50,000 at March 31, 2011 and December 31, 2010	49,158	49,158
Exchangeable operating partnership units, aggregate redemption value of $7,703 and $7,483 at March 31, 2011 and December 31, 2010, respectively	(826)	(762)
Limited partners' interests in consolidated partnerships	12,908	10,829
Total noncontrolling interests	61,240	59,225
Total equity/capital	1,930,472	1,744,402
Total liabilities and equity	3,991,172	3,994,539
Partnership Interest [Member]
Assets [Abstract]
Land	1,094,816	1,093,700
Buildings and improvements	2,291,514	2,284,522
Development in Process	614,612	610,932
Gross real estate investments at cost	4,000,942	3,989,154
Less: accumulated depreciation	729,133	700,878
Total	3,271,809	3,288,276
Investments in real estate partnerships	408,238	428,592
Net real estate investments	3,680,047	3,716,868
Cash and Cash Equivalents, at Carrying Value	65,764	22,460
Accounts receivable, net of allowance for doubtful accounts of $4,224 and $4,819 at March 31, 2011 and December 31, 2010, respectively	26,597	36,600
Straight-line rent receivable, net of allowance of $1,553 and $1,396 at March 31, 2011 and December 31, 2010, respectively	46,815	45,241
Notes receivable	35,931	35,931
Deferred costs, less accumulated amortization of $65,362 and $69,158 at March 31, 2011 and December 31, 2010, respectively	62,635	63,165
Acquired lease intangible assets, less accumulated amortization of $15,057 and $13,996 at March 31, 2011 and December 31, 2010, respectively	17,401	18,219
Trading securities held in trust, at fair value	21,661	20,891
Other Assets	34,321	35,164
Total assets	3,991,172	3,994,539
Liabilities:
Notes payable	1,922,471	2,084,469
Unsecured credit facilities	0	10,000
Accounts payable and other liabilities	120,949	138,196
Acquired lease intangible liabilities, less accumulated accretion of $11,288 and $11,010 at March 31, 2011 and December 31, 2010, respectively	6,404	6,682
Tenants' security and escrow deposits	10,876	10,790
Total liabilities	2,060,700	2,250,137
Commitments and contingencies
Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest [Abstract]
Preferred stock, $.01 par value per share, 30,000,000 shares authorized; 11,000,000 Series 3-5 shares issued and outstanding at March 31, 2011 and December 31, 2010 with liquidation preferences of $25 per share	49,158	49,158
Preferred units of general partner, $.01 par value per unit, 11,000,000 units issued and outstanding at March 31, 2011 and December 31, 2010, liquidation preference of $25 per unit	275,000	275,000
General partner; 89,895,007 and 81,886,872 units outstanding at March 31, 2011 and December 31, 2010, respectively	1,672,755	1,491,062
Limited partners; 177,164 units outstanding at March 31, 2011 and December 31, 2010	(826)	(762)
Accumulated other comprehensive loss	(78,523)	(80,885)
Limited partners' interests in consolidated partnerships	12,908	10,829
Total noncontrolling interests	12,908	10,829
Total partners' capital	1,917,564	1,733,573
Total equity/capital	1,930,472	1,744,402
Total liabilities and capital	$ 3,991,172	$ 3,994,539

Consolidated Balance Sheets (Parenthetical) (USD $)	Mar. 31, 2011	Dec. 31, 2010
Parent Company [Member]
Allowance for doubtful accounts receivable	$ 4,224,000	$ 4,819,000
Straight-line rent receivable allowance	1,553,000	1,396,000
Deferred costs accumulated amortization	65,362,000	69,158,000
Accumulated amortization of acquired lease intangible assets	15,057,000	13,996,000
Accumulated accretion of acquired lease intangible liabilities	11,288,000	11,010,000
Preferred stock, par value per share	$ 0.01	$ 0.01
Preferred stock, shares authorized	30,000,000	30,000,000
Preferred units of Series 3-5, units issued	11,000,000	11,000,000
Preferred units of Series 3-5, units outstanding	11,000,000	11,000,000
Preferred stock, liquidation preferences per share	$ 25	$ 25
Common stock, par value per share	$ 0.01	$ 0.01
Common stock, shares authorized	150,000,000	150,000,000
Common stock, shares issued	89,895,007	81,886,872
Preferred units, aggregate redemption value	50,000,000	50,000,000
Exchangeable operating partnership units aggregate redemption value	7,703,000	7,483,000
Treasury stock, shares held at cost	350,974	347,482
Partnership Interest [Member]
Allowance for doubtful accounts receivable	4,224,000	4,819,000
Straight-line rent receivable allowance	1,553,000	1,396,000
Deferred costs accumulated amortization	65,362,000	69,158,000
Accumulated amortization of acquired lease intangible assets	15,057,000	13,996,000
Accumulated accretion of acquired lease intangible liabilities	11,288,000	11,010,000
Series D preferred units, par value	$ 100	$ 100
Series D units issued	500,000	500,000
Series D preferred units outstanding	500,000	500,000
Preferred units of general partner par value per unit	$ 0.01	$ 0.01
Preferred units of Series 3-5, units issued	11,000,000	11,000,000
Preferred units of Series 3-5, units outstanding	11,000,000	11,000,000
Preferred stock, liquidation preferences per share	$ 25	$ 25
General partner units, outstanding	89,895,007	81,886,872
Limited partner units, outstanding	177,164	177,164

Consolidated Statements of Operations (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2011	Mar. 31, 2010
Parent Company [Member]
Revenues [Abstract]
Minimum rent	$ 89,384	$ 86,204
Percentage rent	907	360
Recoveries from tenants and other income	28,965	30,583
Management, transaction, and other fees	7,858	6,931
Total revenues	127,114	124,078
Operating Expenses [Abstract]
Depreciation and amortization	35,190	31,228
Operating and maintenance	19,575	17,598
General and administrative	16,954	15,318
Real estate taxes	14,703	14,493
Provision for doubtful accounts	626	2,339
Other expenses	(905)	607
Total operating expenses	86,143	81,583
Nonoperating Income (Expense) [Abstract]
Interest expense, net of interest income of $601 and $675 in 2011 and 2010, respectively	30,865	29,129
Gain on sale of properties in development	0	(791)
Income from deferred compensation plan	(745)	(614)
Gain on derivative instruments	0	343
Total other expense (income)	30,120	28,067
Income (loss) before equity in income (loss) of investments in real estate partnerships	10,851	14,428
Equity in income (loss) of investments in real estate partnerships	(2,725)	(3,892)
Income (loss) from continuing operations	8,126	10,536
Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, Net of Tax [Abstract]
Operating income (loss)	4	106
Gain on sale of operating properties and properties in development	0	6,797
Income (loss) from discontinued operations	4	6,903
Net income (loss)	8,130	17,439
Net Income (Loss) Attributable to Noncontrolling Interest [Abstract]
Preferred units	(931)	(931)
Exchangeable operating partnership units	(13)	(94)
Limited partners' interest in consolidated partnerships	(82)	(96)
Net income attributable to noncontrolling interests	(1,026)	(1,121)
Net income (loss) attributable to controlling interests	7,104	16,318
Preferred stock dividends	4,919	4,919
Net income attributable to common stockholders	2,185	11,399
Income (loss) per common share/unit - basic:
Continuing operations	$ 0.02	$ 0.05
Discontinued operations	$ 0	$ 0.09
Net income (loss) attributable to common stockholders	$ 0.02	$ 0.14
Income (loss) per common share/unit - diluted:
Continuing operations	$ 0.02	$ 0.05
Discontinued operations	$ 0	$ 0.09
Net income (loss) attributable to common stockholders	$ 0.02	$ 0.14
Partnership Interest [Member]
Revenues [Abstract]
Minimum rent	89,384	86,204
Percentage rent	907	360
Recoveries from tenants and other income	28,965	30,583
Management, transaction, and other fees	7,858	6,931
Total revenues	127,114	124,078
Operating Expenses [Abstract]
Depreciation and amortization	35,190	31,228
Operating and maintenance	19,575	17,598
General and administrative	16,954	15,318
Real estate taxes	14,703	14,493
Provision for doubtful accounts	626	2,339
Other expenses	(905)	607
Total operating expenses	86,143	81,583
Nonoperating Income (Expense) [Abstract]
Interest expense, net of interest income of $601 and $675 in 2011 and 2010, respectively	30,865	29,129
Gain on sale of properties in development	0	(791)
Income from deferred compensation plan	(745)	(614)
Gain on derivative instruments	0	343
Total other expense (income)	30,120	28,067
Income (loss) before equity in income (loss) of investments in real estate partnerships	10,851	14,428
Equity in income (loss) of investments in real estate partnerships	(2,725)	(3,892)
Income (loss) from continuing operations	8,126	10,536
Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, Net of Tax [Abstract]
Operating income (loss)	4	106
Gain on sale of operating properties and properties in development	0	6,797
Income (loss) from discontinued operations	4	6,903
Net income (loss)	8,130	17,439
Net Income (Loss) Attributable to Noncontrolling Interest [Abstract]
Limited partners' interest in consolidated partnerships	(82)	(96)
Net income attributable to noncontrolling interests	(82)	(96)
Net income (loss) attributable to controlling interests	8,048	17,343
Preferred unit distributions	(5,850)	(5,850)
Net income (loss) attributable to common unit holders	$ 2,198	$ 11,493
Income (loss) per common share/unit - basic:
Continuing operations	$ 0.02	$ 0.05
Discontinued operations	$ 0	$ 0.09
Net income (loss) attributable to common unit holders	$ 0.02	$ 0.14
Income (loss) per common share/unit - diluted:
Continuing operations	$ 0.02	$ 0.05
Discontinued operations	$ 0	$ 0.09
Net income (loss) attributable to common unit holders	$ 0.02	$ 0.14

Consolidated Statement of Equity and Comprehensive Income (Loss) (USD $) In Thousands, unless otherwise specified	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 Loss [Member] Parent Company [Member]	Accumulated Distributions in Excess of Net Income [Member] Parent Company [Member]	Total Stockholders' Equity [Member] Parent Company [Member]	Noncontrolling Interests in Limited Partners' Interest in Consolidated Partnerships [Member] Parent Company [Member]	Noncontrolling Interests in Limited Partners' Interest in Consolidated Partnerships [Member] Partnership Interest [Member]	Noncontrolling Interests Preferred Units [Member] Parent Company [Member]	Noncontrolling Interest Exchangeable Operating Partnership Units [Member] Parent Company [Member]	Total Noncontrolling Interests [Member] Parent Company [Member]	Preferred Units, Class [Domain] Partnership Interest [Member]	General Partner [Member] Partnership Interest [Member]	Limited Partners' Capital Account, Class [Domain] Partnership Interest [Member]	Accumulated Other Comprehensive Income [Member] Partnership Interest [Member]	Partners Capital Total [Member] Partnership Interest [Member]
Beginning balance at Dec. 31, 2010	$ 1,744,402	$ 1,744,402	$ 275,000	$ 819	$ (16,175)	$ 2,039,612	$ (80,885)	$ (533,194)	$ 1,685,177	$ 10,829	$ 10,829	$ 49,158	$ (762)	$ 59,225	$ 49,158	$ 1,766,062	$ (762)	$ (80,885)	$ 1,733,573
Comprehensive Income:
Net income (loss)	8,130	8,130	0	0	0	0	0	7,104	7,104	82	82	931	13	1,026	931	7,104	13	0	8,048
Amortization of loss on derivative instruments	2,367	2,367	0	0	0	0	2,362	0	2,362	0	0	0	5	5	0	0	5	2,362	2,367
Total comprehensive income	10,497	10,497							9,466					1,031					10,415
Deferred compensation plan, net	(24)	(24)			(117)	93			(24)							(24)			(24)
Restricted stock issued, net of amortization	3,288		0	0	0	3,288	0		3,288	0		0	0	0
Common stock redeemed for taxes withheld for stock based compensation, net	(1,895)		0	0	0	(1,895)	0	0	(1,895)	0		0	0	0
Common stock issued for dividend reinvestment plan	287		0	0	0	287	0	0	287	0		0	0	0
Common stock issued for partnership units exchanged	0	0
Common stock issued for stock offerings, net of issuance costs	215,369			80		215,289			215,369
Contributions from partners	2,289	2,289	0	0	0	0	0	0	0	2,289	2,289	0	0	2,289	0	0	0	0	0
Distributions to partners, noncontrolling interests	(292)	(37,891)	0	0	0	0	0	0	0	(292)	(292)	0	0	(292)	0	(37,517)	(82)	0	(37,599)
Preferred unit distributions		(5,850)									0				(931)	(4,919)	0	0	(5,850)
Restricted stock issued by Parent Company, net of amortization		3,288									0				0	3,288	0	0	3,288
Common units issued as a result of common stock issued by Parent Company, net of repurchases		213,761									0				0	213,761	0	0	213,761
Dividends, Cash [Abstract]
Preferred stock/unit	(5,850)		0	0	0	0	0	(4,919)	(4,919)	0		(931)	0	(931)
Common stock/unit ($.4625 per share)	(37,599)		0	0	0	0	0	(37,517)	(37,517)	0		0	(82)	(82)
Balance at Mar. 31, 2011	$ 1,930,472	$ 1,930,472	$ 275,000	$ 899	$ (16,292)	$ 2,256,674	$ (78,523)	$ (568,526)	$ 1,869,232	$ 12,908	$ 12,908	$ 49,158	$ (826)	$ 61,240	$ 49,158	$ 1,947,755	$ (826)	$ (78,523)	$ 1,917,564

Consolidated Statements of Cash Flows (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2011	Mar. 31, 2010
Parent Company [Member]
Net income (loss)	$ 8,130	$ 17,439
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]
Depreciation and amortization	35,190	31,333
Amortization of deferred loan cost and debt premium	3,057	1,508
Depreciation, Amortization and Accretion, Net	(195)	(439)
Stock-based compensation, net of capitalization	2,501	1,595
Equity in loss of investments in real estate partnerships	2,725	3,892
Net gain on sale of properties	0	(7,606)
Provision for doubtful accounts	627	2,279
Distribution of earnings from operations of investments in real estate partnerships	12,735	8,362
Deferred compensation expense	1,293	1,583
Realized gain on trading securities in held in trust	(109)	(61)
Unrealized loss on trading securities in held in trust	(643)	(558)
Gain on derivative instruments	0	343
Adjustments, Noncash Items, to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]
Accounts receivable	7,253	7,819
Straight-line rent receivables, net	(1,574)	(990)
Deferred leasing costs	(3,272)	(3,776)
Other assets	(393)	3,181
Accounts payable and other liabilities	(17,924)	(21,747)
Tenants' security and escrow deposits	86	(68)
Net cash provided by operating activities	49,487	44,089
Net Cash Provided by (Used in) Investing Activities [Abstract]
Development of real estate including acquisition of land	(13,135)	(7,473)
Proceeds from sale of real estate investments	1,303	30,633
Investments in real estate partnerships	(4,742)	(3,717)
Equity Method Investment, Dividends or Distributions	9,988	0
Dividends on trading securities held in trust	51	44
Acquisition of trading securities held in trust	(6,479)	(4,375)
Proceeds from sale of trading securities held in trust	6,409	4,149
Net cash used in investing activities	(6,605)	19,261
Net Cash Provided by (Used in) Financing Activities [Abstract]
Net proceeds from common stock issuance	215,369	0
Proceeds from sale of treasury stock	615	801
Distributions to limited partners in consolidated partnerships, net	(292)	(1,076)
Distributions to exchangeable operating partnership unit holders	(82)	(206)
Distributions to preferred unit holders/partners	(931)	(931)
Dividends paid to common stockholders	(37,230)	(37,044)
Dividends paid to preferred stockholders	(4,919)	(4,919)
Repayment of fixed rate unsecured notes	(161,691)	0
Proceeds from unsecured credit facilities	175,000	0
Repayment of unsecured credit facilities	(185,000)	0
Proceeds from notes payable	829	1,335
Repayment of notes payable	(20)	0
Scheduled principal payments	(1,226)	(1,249)
Net cash (used in) provided by financing activities	422	(43,289)
Net (decrease) increase in cash and cash equivalents	43,304	20,061
Cash and cash equivalents at beginning of the period	22,460	99,477
Cash and cash equivalents at end of the period	65,764	119,538
Supplemental disclosure of cash flow information:
Cash paid for interest (net of capitalized interest of $589 and $2,080 in 2011 and 2010, respectively)	30,992	34,896
Supplemental disclosure of non-cash transactions:
Common stock issued for partnership units exchanged	0	645
Real estate received through foreclosure on notes receivable	0	990
Change in fair value of derivative instruments	0	(5,916)
Common stock issued for dividend reinvestment plan	287	678
Stock-based compensation capitalized	257	167
Contributions from limited partners in consolidated partnerships, net	2,289	49
Common stock issued for dividend reinvestment in trust	161	156
Stock deferred into trust	639	694
Stock distributed out of trust	0	51
Partnership Interest [Member]
Net income (loss)	8,130	17,439
Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]
Depreciation and amortization	35,190	31,333
Amortization of deferred loan cost and debt premium	3,057	1,508
Depreciation, Amortization and Accretion, Net	(195)	(439)
Stock-based compensation, net of capitalization	2,501	1,595
Equity in loss of investments in real estate partnerships	2,725	3,892
Net gain on sale of properties	0	(7,606)
Provision for doubtful accounts	627	2,279
Distribution of earnings from operations of investments in real estate partnerships	12,735	8,362
Deferred compensation expense	1,293	1,583
Realized gain on trading securities in held in trust	(109)	(61)
Unrealized loss on trading securities in held in trust	(643)	(558)
Gain on derivative instruments	0	343
Adjustments, Noncash Items, to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract]
Accounts receivable	7,253	7,819
Straight-line rent receivables, net	(1,574)	(990)
Deferred leasing costs	(3,272)	(3,776)
Other assets	(393)	3,181
Accounts payable and other liabilities	(17,924)	(21,747)
Tenants' security and escrow deposits	86	(68)
Net cash provided by operating activities	49,487	44,089
Net Cash Provided by (Used in) Investing Activities [Abstract]
Development of real estate including acquisition of land	(13,135)	(7,473)
Proceeds from sale of real estate investments	1,303	30,633
Investments in real estate partnerships	(4,742)	(3,717)
Equity Method Investment, Dividends or Distributions	9,988	0
Dividends on trading securities held in trust	51	44
Acquisition of trading securities held in trust	(6,479)	(4,375)
Proceeds from sale of trading securities held in trust	6,409	4,149
Net cash used in investing activities	(6,605)	19,261
Net Cash Provided by (Used in) Financing Activities [Abstract]
Net proceeds from common stock issuance	215,369	0
Proceeds from sale of treasury stock	615	801
Distributions to limited partners in consolidated partnerships, net	(292)	(1,076)
Distributions to preferred unit holders/partners	(37,312)	(37,250)
Preferred unit distributions	(5,850)	(5,850)
Repayment of fixed rate unsecured notes	(161,691)	0
Proceeds from unsecured credit facilities	175,000	0
Repayment of unsecured credit facilities	(185,000)	0
Proceeds from notes payable	829	1,335
Repayment of notes payable	(20)	0
Scheduled principal payments	(1,226)	(1,249)
Net cash (used in) provided by financing activities	422	(43,289)
Net (decrease) increase in cash and cash equivalents	43,304	20,061
Cash and cash equivalents at beginning of the period	22,460	99,477
Cash and cash equivalents at end of the period	65,764	119,538
Supplemental disclosure of cash flow information:
Cash paid for interest (net of capitalized interest of $589 and $2,080 in 2011 and 2010, respectively)	30,992	34,896
Supplemental disclosure of non-cash transactions:
Common stock issued for partnership units exchanged	0	645
Real estate received through foreclosure on notes receivable	0	990
Change in fair value of derivative instruments	0	(5,916)
Common stock issued for dividend reinvestment plan	287	678
Stock-based compensation capitalized	257	167
Contributions from limited partners in consolidated partnerships, net	2,289	49
Common stock issued for dividend reinvestment in trust	161	156
Stock deferred into trust	639	694
Stock distributed out of trust	$ 0	$ 51

Orgainization and Principles of Consolidation

3 Months Ended

Mar. 31, 2011

Summary of Significant Accounting Policies [Abstract]

Organization, Consolidation and Presentation of Financial Statements Disclosure [Text Block]

General

Regency Centers Corporation (the “Parent Company”) began its operations as a Real Estate Investment Trust (“REIT”) in 1993 and is the managing general partner of Regency Centers, L.P. (the “Operating Partnership”). The Parent Company currently owns approximately 99.8% of the outstanding common Partnership Units of 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 or liabilities other than through its investment in the Operating Partnership. At March 31, 2011, the Parent Company, the Operating Partnership and their controlled subsidiaries on a consolidated basis (“the Company” or “Regency”) directly owned 216 retail shopping centers and held partial interests in an additional 180 retail shopping centers through investments in real estate partnerships (also referred to as joint ventures or real estate partnerships).

Estimates, Risks, and Uncertainties

The preparation of financial statements in conformity with U.S. Generally Accepted Accounting Principles (“GAAP”) requires the Company's management to make estimates and assumptions that affect the reported amounts of assets and liabilities, and disclosure of contingent assets and liabilities, at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. The most significant estimates in the Company's financial statements relate to the carrying values of its investments in real estate including its shopping centers, properties in development and its investments in real estate partnerships, accounts receivable, net, and derivative instruments. Although the U.S. economy is recovering from the recession of 2009, economic conditions remain challenging, and therefore, it is possible that the estimates and assumptions that have been utilized in the preparation of the consolidated financial statements could change significantly, if economic conditions were to weaken.

Consolidation

The accompanying consolidated financial statements include the accounts of the Parent Company, the Operating Partnership, its wholly-owned subsidiaries, and consolidated partnerships in which the Company has a controlling ownership interest. All significant inter-company balances and transactions are eliminated in the consolidated financial statements.

- Definition

Description containing the entire organization, consolidation and basis of presentation of financial statements disclosure. May be provided in more than one note to the financial statements, as long as users are provided with an understanding of (1) the significant judgments and assumptions made by an enterprise in determining whether it must consolidate a VIE and/or disclose information about its involvement with a VIE, (2) the nature of restrictions on a consolidated VIE's assets reported by an enterprise in its statement of financial position, including the carrying amounts of such assets, (3) the nature of, and changes in, the risks associated with an enterprise's involvement with the VIE, and (4) how an enterprise's involvement with the VIE affects the enterprise's financial position, financial performance, and cash flows. Describes procedure if disclosures are provided in more than one note to the financial statements.

+ References+ Details

Accounts Receivable Level 1 (Notes)

3 Months Ended

Mar. 31, 2011

3. Accounts Receivable [Abstract]

Schedule of Accounts, Notes, Loans and Financing Receivable [Text Block]

3. Accounts Receivable

During the three months ended March 31, 2011 and 2010, the Company recorded provision for doubtful accounts of approximately $626,000 and $2.3 million, respectively, of which a credit adjustment of approximately $76,000, is included in discontinued operations for the three months ended March 31, 2010.

The following table represents the components of accounts receivable, net of allowance for doubtful accounts, as of March 31, 2011 and December 31, 2010 in the accompanying Consolidated Balance Sheets (in thousands):



		2011		2010

Tenant receivables	$	11,874		19,314
CAM and tax reimbursements		13,956		13,629
Other receivables		4,991		8,476
Less: allowance for doubtful accounts		(4,224	)	(4,819	)
Total	$	26,597		36,600

Discontinued Operations	3 Months Ended
Discontinued Operations	Mar. 31, 2011
Discontinued Operations [Abstract]
Discontinued Operations	4. Discontinued Operations During the three months ended March 31, 2011, the Company did not sell any operating or development properties. During the three months ended March 31, 2010, the Company sold 100% of its ownership interest in one operating property and one property in development for net proceeds of $25.5 million. The combined operating income and gain on the sale of these properties were reclassified to discontinued operations. The revenues included in discontinued operations were approximately $416,000 for the three months ended March 31, 2010. The operating income and gain on sales of properties included in discontinued operations are reported net of income taxes, if the property is sold by Regency Realty Group, Inc., a wholly-owned subsidiary of the Operating Partnership, which is a Taxable REIT Subsidiary as defined in Section 856(l) of the Internal Revenue Code. During the three months ended March 31, 2010, approximately $18,000 of income tax expense was allocated to gain on sale of properties in development.

Income Taxes

3 Months Ended

Mar. 31, 2011

Income Taxes [Abstract]

Income Taxes

5. Income Taxes

Income tax expense (benefit) is included in other expenses in the accompanying Consolidated Statements of Operations and consists of the following for the three months ended March 31, 2011 and 2010 (in thousands):



		2011		2010
Income tax expense (benefit) from:
Continuing operations	$	(1,815	)	7
Discontinued operations		—		18
Total income tax expense (benefit)	$	(1,815	)	25

Notes Payable and Unsecured Credit Facilities

3 Months Ended

Mar. 31, 2011

Notes Payable and Unsecured Credit Facilities [Abstract]

Notes Payable and Unsecured Credit Facilities

6. Notes Payable and Unsecured Line of Credit

The Parent Company does not hold any indebtedness, but guarantees all of the unsecured debt and less than 9% of the secured debt of the Operating Partnership.

Notes Payable

Notes payable consist of mortgage loans secured by properties and unsecured public debt. Mortgage loans may be prepaid, but could be subject to yield maintenance premiums. Mortgage loans are generally due in monthly installments of principal and interest or interest only, and mature over various terms through 2020, whereas, interest on unsecured public debt is payable semi-annually and the debt matures over various terms through 2021. Fixed interest rates on mortgage loans range from 5.00% to 8.40% with a weighted average rate of 6.52%. As of March 31, 2011, the Company had two variable rate mortgage loans, one in the amount of $4.0 million with an interest rate equal to LIBOR plus 380 basis points maturing on October 1, 2014 and one construction loan with a current balance of $7.9 million with a variable interest rate of LIBOR plus 300 basis points maturing on September 2, 2011. On January 18, 2011, the Company paid the maturing balance of $161.7 million of 7.95% ten-year senior unsecured notes from proceeds from the unsecured line of credit.

Unsecured Line of Credit

The Company has a $600.0 million unsecured line of credit (the “Line”) commitment under an agreement with Wells Fargo Bank and a syndicate of other banks that matures in February 2012. The Line has a current interest rate of LIBOR plus 55 basis points and an annual facility fee of 15 basis points subject to Regency maintaining its corporate credit and senior unsecured ratings at BBB. There was no balance on the Line at March 31, 2011 and $10.0 million was outstanding at December 31, 2010 . The Company has initiated discussions with its lender to enter into a new Line commitment and term, and expects to close on a new commitment prior to February 2012.

The Company is required to comply with certain financial covenants as defined in the Credit Agreement such as Minimum Net Worth, Ratio of Total Liabilities to Gross Asset Value (“GAV”) and Ratio of Recourse Secured Indebtedness to GAV, Ratio of Earnings Before Interest Taxes Depreciation and Amortization (“EBITDA”) to Fixed Charges, and other covenants customary with this type of unsecured financing. As of March 31, 2011, management of the Company believes it is in compliance with all financial covenants for the Line. The proceeds from the Line are used to finance the acquisition and development of real estate and for general working-capital purposes.

The Company had a $113.8 million revolving credit facility under an agreement with Wells Fargo Bank and a syndicate of other banks that matured in February 2011. At December 31, 2010, the revolving credit facility had a variable interest rate equal to LIBOR plus 100 basis points and an annual facility fee of 20 basis points subject to maintaining its corporate credit and senior unsecured ratings at BBB. There was no balance outstanding at December 31, 2010 and the Company did not renew this facility when it matured in February 2011.

The Company’s outstanding debt at March 31, 2011 and December 31, 2010 consists of the following (in thousands):



		2011	2010
Notes payable:
Fixed rate mortgage loans	$	400,971	402,151
Variable rate mortgage loans		11,948	11,189
Fixed rate unsecured loans		1,509,552	1,671,129
Total notes payable		1,922,471	2,084,469
Unsecured line of credit		—	10,000
Total	$	1,922,471	2,094,469

As of March 31, 2011, scheduled principal payments and maturities on notes payable were as follows (in thousands):



Scheduled Principal Payments and Maturities by Year:		Scheduled Principal Payments	Mortgage Loan Maturities	Unsecured Maturities ⁽¹⁾		Total
2011	$	3,754	8,494	20,000		32,248
2012		5,267	—	192,377		197,644
2013		5,151	16,340	—		21,491
2014		4,380	21,170	150,000		175,550
2015		3,136	46,251	350,000		399,387
Beyond 5 Years		5,716	292,535	800,000		1,098,251
Unamortized debt discounts (premiums)		—	725	(2,825	)	(2,100	)
Total	$	27,404	385,515	1,509,552		1,922,471

⁽¹⁾ Includes unsecured public debt and the Line. The Line is included in 2012 maturities and matures in February 2012.

Derivative Financial Instruments

3 Months Ended

Mar. 31, 2011

General Discussion of Derivative Instruments and Hedging Activities [Abstract]

Derivative Financial Instruments

Risk Management Objective of Using Derivatives

The Company is exposed to certain risks arising from both its business operations and economic conditions. The Company principally manages its exposures to a wide variety of business and operational risks through management of its core business activities. The Company manages economic risks, including interest rate, liquidity, and credit risk primarily by managing the amount, sources, and duration of its debt funding and the use of derivative financial instruments. Historically, the Company has entered into derivative financial instruments to manage exposures that arise from business activities that result in the receipt or future payment of known and uncertain cash amounts principally related to the Company's borrowings, the amount of which are determined by interest rates.

Cash Flow Hedges of Interest Rate Risk

The Company's objective for previously using interest rate derivatives was to add stability to interest expense and to manage its exposure to interest rate movements. To accomplish this objective, the Company used 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 effective portion of changes in the fair value of derivatives designated and qualifying as cash flow hedges was recorded in accumulated other comprehensive loss and subsequently reclassified into earnings in the period that the hedged forecasted transaction affects earnings. The ineffective portion of the change in fair value of the derivatives was recognized directly in earnings as gain or loss on derivative instruments. During the three months ended March 31, 2010, the Company recognized a loss of approximately $343,000 for changes in hedge ineffectiveness attributable to revised inputs used in the valuation models to estimate effectiveness. The Company settled all of its remaining interest rate swaps in 2010.

The unamortized balance of the settled interest rate swaps at March 31, 2011 and December 31, 2010 was $79.1 million and $81.5 million, respectively. Amortization of realized gains and losses associated with the settled interest rate swaps has been included in accumulated other comprehensive loss in the accompanying Consolidated Statement of Equity and Comprehensive Income (Loss) of the Parent Company and the accompanying Consolidated Statement of Capital and Comprehensive Income (Loss) of the Operating Partnership.

The tables below represent the effect of the derivative financial instruments on the accompanying consolidated financial statements for the three months ended March 31, 2011 and 2010 (in thousands):



Derivatives in FASB ASC Topic 815 Cash Flow Hedging Relationships:	Amount of Loss Recognized in Accumulated OCI on Derivative (Effective Portion)			Location of Loss Reclassified from Accumulated OCI into Income (Effective Portion)	Amount of Loss Reclassified from Accumulated OCI into Income (Effective Portion)			Location of Loss Recognized in Loss on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing)	Amount of Loss Recognized in Loss on Derivative (Ineffective Portion and Amount Excluded from Effectiveness Testing)
	2011		2010		2011		2010		2011		2010
Interest rate products	$	—	6,558	Interest expense	$	2,367	825	Loss on derivative instruments	$	—	343

Fair Value Measurements	12 Months Ended
Fair Value Measurements	Dec. 31, 2010
Fair Value Measurement [Abstract]
Fair Value Measurements	Fair Value Measurements Impairment of Long-lived Assets Long-lived assets held and used are comprised primarily of real estate. During the three months ended March 31, 2011 and 2010 the Company did not establish provisions for impairment of long-lived assets. Trading Securities Held in Trust The Company has investments in marketable securities that are classified as trading securities held in trust on the accompanying Consolidated Balance Sheets as described in Note 2. The fair value of the trading securities held in trust was determined using Level 1 quoted prices in active markets. The fair value of the trading securities held in trust was $21.7 million and $20.9 million at March 31, 2011 and December 31, 2010, respectively. Notes Payable The fair value of the Company's notes payable are estimated based on the current rates available to the Company for debt of the same terms and remaining maturities. Fixed rate loans assumed in connection with real estate acquisitions are recorded in the accompanying consolidated financial statements at fair value at the time of acquisition excluding those loans assumed in distribution-in-kind liquidations. Each of these fair value measurements fall within Level 3 of the fair value hierarchy. Based on the estimates used by the Company, the fair value of notes payable was $1.5 billion and $1.7 billion at March 31, 2011 and December 31, 2010, respectively. Noncontrolling Interests of the Parent Company and Partners’ Capital The Operating Partnership had 177,164 limited Partnership Units outstanding at both March 31, 2011 and December 31, 2010. The limited Partnership Units are exchangeable for the Parent Company's common stock. The redemption value of the limited Partnership Units is based on the closing market price of the Parent Company's common stock and is used to calculate the fair value measurement. Therefore, the fair value measurements fall within Level 1 of the fair value hierarchy. The Parent Company's closing common stock price was $43.48 and $42.24 per share as of March 31, 2011 and December 31, 2010, respectively, and the aggregate redemption value of the limited Partnership Units was $7.7 million and $7.5 million, respectively. Noncontrolling Interests of the Parent Company and the Operating Partnership

- Definition

This item represents the complete disclosure regarding the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments, 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 Company 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 risk is 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

Stock-Based Compensation

3 Months Ended

Mar. 31, 2011

Stock Based Compensation [Abstract]

Stock-Based Compensation

10. Stock-Based Compensation

The Company recorded stock-based compensation in general and administrative expenses in the accompanying Consolidated Statements of Operations, the components of which are further described below for the three months ended March 31, 2011 and 2010 (in thousands):



		2011		2010

Restricted stock	$	2,696		1,713
Directors’ fees paid in common stock		62		49
Capitalized stock-based compensation		(257	)	(167	)
Total	$	2,501		1,595

The recorded amounts of stock-based compensation expense represent amortization of the grant date fair value of restricted stock awards over the respective vesting periods. Compensation expense specifically identifiable to development and leasing activities is capitalized and included above.

There were no stock options granted or exercised during the three months ended March 31, 2011. The Company issues new shares to fulfill option exercises from its authorized shares available. The following table reports stock option activity during the three months ended March 31, 2011:



	Number of Options		Weighted Average Exercise Price	Weighted Average Remaining Contractual Term (in years)		Aggregate Intrinsic Value (in thousands)
Outstanding December 31, 2010	442,880	$	51.85
Less: Forfeited	34,949		52.15
Outstanding March 31, 2011	407,931	$	51.82	3.6	$	(3,403	)
Vested and expected to vest - March 31, 2011	407,931	$	51.82	3.6	$	(3,403	)
Exercisable March 31, 2011	407,931	$	51.82	3.6	$	(3,403	)

The following table presents information regarding non-vested option activity during the three months ended March 31, 2011:



	Non-vested Number of Options		Weighted Average Grant-Date Fair Value
Non-vested at December 31, 2010	2,185	$	8.78
Less: 2011 Vesting	2,185		8.78
Non-vested at March 31, 2011	—	$	—

The following table reports non-vested restricted stock activity during the three months ended March 31, 2011:



	Number of Shares		Intrinsic Value (in thousands)		Weighted Average Grant Price
Non-vested at December 31, 2010	436,559
Add: Time-based awards granted	107,531			$	41.54
Add: Performance-based awards granted	18,246			$	41.54
Add: Market-based awards granted	165,689			$	41.54
Less: Vested and Distributed	152,085			$	42.73
Less: Forfeited	79			$	63.26
Non-vested at March 31, 2011	575,861	$	25,038	$	40.11

The weighted-average grant price for restricted stock granted during the three months ended March 31, 2011 was $41.54. The total intrinsic value of restricted stock vested during the three months ended March 31, 2011 was $6.5 million.

As of March 31, 2011, there was $21.5 million of unrecognized compensation cost related to non-vested restricted stock granted under the Parent Company's Long-term Omnibus Plan. When recognized, this compensation results in additional paid in capital in the accompanying Consolidated Statements of Equity and Comprehensive Income (Loss) of the Parent Company and in general partner preferred and common units in the accompanying Consolidated Statements of Capital and Comprehensive Income (Loss) of the Operating Partnership. This unrecognized compensation cost is expected to be recognized over the next three years, through 2014. The Company issues new restricted stock from its authorized shares available at the date of grant.

Earnings per Share and Unit

3 Months Ended

Mar. 31, 2011

Earnings per Share and Unit [Abstract]

Earnings per Share and Unit

11. Earnings per Share and Unit

Parent Company Earnings per Share

The following summarizes the calculation of basic and diluted earnings per share for the three months ended March 31, 2011 and 2010, respectively (in thousands except per share data):



		2011	2010
Numerator:
Income from continuing operations	$	8,126	10,536
Discontinued operations		4	6,903
Net income		8,130	17,439
Less: Preferred stock dividends		4,919	4,919
Less: Noncontrolling interests		1,026	1,121
Net income attributable to common stockholders		2,185	11,399
Less: Dividends paid on unvested restricted stock		240	191
Net income attributable to common stockholders - basic and diluted	$	1,945	11,208
Denominator:
Weighted average common shares outstanding for basic EPS		83,099	80,908
Incremental shares to be issued under unvested restricted stock		33	—
Incremental shares under Forward Equity Offering		1,695	1,087
Weighted average common shares outstanding for diluted EPS		84,827	81,995
Income per common share – basic
Continuing operations	$	0.02	0.05
Discontinued operations		—	0.09
Net income attributable to common stockholders	$	0.02	0.14
Income per common share – diluted
Continuing operations	$	0.02	0.05
Discontinued operations		—	0.09
Net income attributable to common stockholders	$	0.02	0.14

The exchangeable operating partnership units were anti-dilutive to diluted EPS for the three months ended March 31, 2011 and 2010, and therefore, the units and related minority interest of exchangeable operating partnership units are excluded from the calculation of diluted EPS.

Operating Partnership Earnings per Unit

The following summarizes the calculation of basic and diluted earnings per unit for the three months ended March 31, 2011 and 2010, respectively (in thousands except per unit data):



		2011	2010
Numerator:
Income from continuing operations	$	8,126	10,536
Discontinued operations		4	6,903
Net income		8,130	17,439
Less: Preferred unit distributions		5,850	5,850
Less: Noncontrolling interests		82	96
Net income attributable to common unit holders		2,198	11,493
Less: Dividends paid on unvested restricted stock		240	191
Net income attributable to common unit holders - basic and diluted	$	1,958	11,302
Denominator:
Weighted average common units outstanding for basic EPU		83,276	81,352
Incremental units to be issued under unvested restricted stock		33	—
Incremental units under Forward Equity Offering		1,695	1,087
Weighted average common units outstanding for diluted EPU		85,004	82,439
Income per common unit – basic
Continuing operations	$	0.02	0.05
Discontinued operations		—	0.09
Net income attributable to common unit holders	$	0.02	0.14
Income per common unit – diluted
Continuing operations	$	0.02	0.05
Discontinued operations		—	0.09
Net income attributable to common unit holders	$	0.02	0.14

Commitments and Contingencies	3 Months Ended
Commitments and Contingencies	Mar. 31, 2011
Commitments and Contingencies [Abstract]
Commitments and Contingencies	12. Commitments and Contingencies 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. 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 tenants who currently operate dry cleaning plants or gas stations do so in accordance with current laws and regulations. The Company has placed environmental insurance, when possible, on specific properties with known contamination, in order to mitigate its environmental risk. The Company monitors the shopping centers containing environmental issues and in certain cases voluntarily remediates the sites. If an operating or development property requires remediation to be performed by the Company prior to development or as a condition of sale, environmental remediation obligations are estimated and are considered in the assessment of the property's value. In the event environmental remediation is required, the Company adjusts the sales price of the property for the environmental remediation to be performed, funds the cash in escrow to remediate the environmental issues, or agrees to remain responsible for the future environmental remediation expenses in which case the Company would accrue the estimated potential liability. The Company also has legal obligations to remediate certain sites and is in the process of doing so. The Company estimates the cost associated with remediating all of its environmental obligations at March 31, 2011 and December 31, 2010 to be $2.8 million and $2.9 million, respectively, all of which has been accrued in accounts payable and other liabilities on the accompanying Consolidated Balance Sheets. 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; however, it can give no assurance that existing environmental studies with respect to the shopping centers have revealed all potential environmental 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. 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. The Company also has stand alone letters of credit with other banks. These letters of credit are primarily issued as collateral to facilitate the construction of development projects. As of March 31, 2011 and December 31, 2010, the Company had $4.0 million and $5.3 million letters of credit outstanding, respectively.

Subsequent Events	3 Months Ended
Subsequent Events	Mar. 31, 2011
Subsequent Event [Abstract]
Subsequent Events	13. Subsequent Events The Company has evaluated all subsequent events and transactions that occurred after its March 31, 2011 consolidated balance sheet date noting the following material event: Effective May 1, 2011, the Company entered into an agreement with the DESCO Group ("DESCO") to redeem its 16.35% interest in Macquarie CountryWide-Regency-DESCO, LLC. The agreement, allowed for a distribution-in-kind of the assets in the co-investment partnership. The assets were distributed as 100% ownership interests to DESCO and to Regency after a selection process, as provided for by the agreement. The process utilized a one-for-one selection rotation, with Regency selecting first, until the value of the properties selected, as agreed upon by DESCO and Regency, exceeded Regency's existing ownership interest. Regency selected four assets, all in the St. Louis market. As part of the agreement, Regency received a $5.0 million disposition fee at closing on May 4, 2011 and will continue to earn asset management fees through 2011 for transition services.

Consolidated Statements of Operations (Parenthetical) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2011	Mar. 31, 2010
Parent Company [Member]
Interest income	$ 601	$ 675,000
Partnership Interest [Member]
Interest income	$ 601	$ 675

Consolidated Statements of Cash Flows (Parenthetical) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Mar. 31, 2011	Mar. 31, 2010
Parent Company [Member]
Capitalized interest	$ 589	$ 2,080
Partnership Interest [Member]
Capitalized interest	$ 589	$ 2,080

Non-Qualified Deferred Compensation Plan	3 Months Ended
Non-Qualified Deferred Compensation Plan	Mar. 31, 2011
Non Qualified Deferred Compensation Plan [Abstract]
Schedule of Quantifying Prior Year Misstatements Corrected in Current Year Financial Statements [Text Block]	2. Non-Qualified Deferred Compensation Plan

Equity and Capital	3 Months Ended
Equity and Capital	Mar. 31, 2011
Equity [Abstract]
Equity and Capital	9. Equity and Capital Common Stock of the Parent Company On March 9, 2011, the Parent Company settled its forward sale agreements dated December 4, 2009 (the "Forward Equity Offering") with J.P. Morgan and Wells Fargo Securities by delivering an aggregate 8.0 million shares of common stock. Upon physical settlement of the Forward Equity Offering, the Company received net proceeds of approximately $215.4 million. The Company used a portion of the proceeds to repay the Line, which had been drawn upon to repay unsecured notes of $161.7 million that matured in January 2011.

Consolidated Statement of Equity and Comprehensive Income (Loss) (Parenthetical) (Parent Company [Member], USD $)	3 Months Ended
	Mar. 31, 2011
Parent Company [Member]
Common stock/unit per share	$ 0.4625