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Concentration Risk, Percentage Concentration Risk, Percentage Tax Status of Dividends [Abstract] Tax Status of Dividends [Abstract] Common stock/unit per share Common Stock, Dividends, Per Share, Declared Allocation of Dividends, Ordinary Income Allocation of Dividends, Ordinary Income Allocation of Dividends, Ordinary Income Allocation of Dividends, Capital Gain Allocation of Dividends, Capital Gain Allocation of Dividends, Capital Gain Allocation of Dividends, Return of Capital Allocation of Dividends, Return of Capital Allocation of Dividends, Return of Capital Allocation of Dividends, Qualified Dividend Income Allocation of Dividends, Qualified Dividend Income Allocation of Dividends, Qualified Dividend Income - tax treatment of dividends Income Statement [Abstract] Statement [Table] Statement [Table] Partnership Interest [Member] Partnership Interest [Member] Parent Company [Member] Parent Company [Member] Statement [Line Items] Statement [Line Items] Interest Income Interest 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El Cerrito Plaza [Member] El Norte Parkway Plaza [Member] El Norte Pkwy Plaza [Member] El Norte Pkwy Plaza [Member] Encina Grande [Member] Encina Grande [Member] Encina Grande [Member] Fairfax Shopping Center [Member] Fairfax Shopping Center [Member] Fairfax Shopping Center [Member] Fairfield [Member] Fairfield [Member] Fairfield [Member] Falcon [Member] Falcon [Member] Falcon [Member] Fellsway Plaza [Member] Fellsway Plaza [Member] Fellsway Plaza [Member] Fenton Marketplace [Member] Fenton Marketplace [Member] Fenton Marketplace [Member] Fleming Island [Member] Fleming Island [Member] Fleming Island [Member] Fountain Square [Member] Fountain Square [Member] Fountain Square [Member] French Valley Village Center [Member] French Valley Village Center [Member] French Valley Village Center [Member] Friars Mission Center [Member] Friars Mission Center [Member] Friars Mission Center [Member] Garden City [Member] Garden City [Member] Garden City [Member] Gardens Square [Member] Gardens Square [Member] Gardens Square [Member] Gateway 101 [Member] Gateway 101 [Member] Gateway 101 [Member] Gateway Shopping Center [Member] Gateway Shopping Center [Member] Gateway Shopping Center [Member] Gelson's Westlake Market Plaza [Member] Gelson's Westlake Market Plaza [Member] Gelson's Westlake Market Plaza [Member] Glen Oak Plaza [Member] Glen Oak Plaza [Member] Glen Oak Plaza [Member] Glenwood Village [Member] Glenwood Village [Member] Glenwood Village [Member] Golden Hills Plaza [Member] Golden Hills Plaza [Member] Golden Hills Plaza [Member] Grand Ridge Plaza [Member] Grand Ridge Plaza [Member] Grand Ridge Plaza [Member] Hancock [Member] Hancock [Member] Hancock [Member] Harpeth Village Fieldstone [Member] Harpeth Village Fieldstone [Member] Harpeth Village Fieldstone [Member] Harris Crossing [Member] Harris Crossing [Member] Harris Crossing [Member] Heritage Land [Member] Heritage Land [Member] Heritage Land [Member] Heritage Plaza [Member] Heritage Plaza [Member] Heritage Plaza [Member] Hershey [Member] Hershey [Member] Hershey [Member] Hibernia Pavilion [Member] Hibernia Pavilion [Member] Hibernia Pavilion [Member] Hickory Creek Plaza [Member] Hickory Creek Plaza [Member] Hickory Creek Plaza [Member] Hillcrest Village [Member] Hillcrest Village [Member] Hillcrest Village [Member] Hilltop Village [Member] Hilltop Village [Member] Hilltop Village [Member] Hinsdale [Member] Hinsdale [Member] Hinsdale [Member] Holly Park [Member] Holly Park [Member] Holly Park [Member] Howell Mill Village [Member] Howell Mill Village [Member] Howell Mill Village [Member] Hyde Park [Member] Hyde Park [Member] Hyde Park [Member] Indian Springs [Member] Indian Springs [Member] Indian Springs [Member] Indio Towne Center [Member] Indio Towne Center [Member] Indio Towne Center [Member] Inglewood Plaza [Member] Inglewood Plaza [Member] Inglewood Plaza [Member] Jefferson Square [Member] Jefferson Square [Member] Jefferson Square [Member] Keller Town Center [Member] Keller Town Center [Member] Keller Town Center [Member] Kent Place [Member] Kent Place [Member] Kent Place [Member] Kirkwood Commons [Member] Kirkwood Commons [Member] Kirkwood Commons [Member] Klahanie Shopping Center [Member] Klahanie Shopping Center [Member] Klahanie Shopping Center [Member] Kroger New Albany Center [Member] Kroger New Albany Center [Member] Kroger New Albany Center [Member] Lake Pine Plaza [Member] Lake Pine Plaza [Member] Lake Pine Plaza [Member] Lebanon Center [Member] Lebanon Center [Member] Lebanon Center [Member] Littleton Square [Member] Littleton Square [Member] Littleton Swuare [Member] Lloyd King Center [Member] Lloyd King Center [Member] Lloyd King Center [Member] Loehmanns Plaza California [Member] Loehmanns Plaza California [Member] Loehmanns Plaza California [Member] Lower Nazareth Commons [Member] Lower Nazareth Commons [Member] Lower Nazareth Commons [Member] Market at Colonnade Center [Member] Market at Colonnade Center [Member] Market at Colonnade Center [Member] Market at Preston Forest [Member] Market at Preston Forest [Member] Market at Preston Forest [Member] Market at Round Rock [Member] Market at Round Rock [Member] Market at Round Rock [Member] Market Common Clarendon [Member] Market Common Clarendon [Member] Market Common Clarendon [Member] Marketplace Shopping Center [Member] Marketplace Shopping Center [Member] Marketplace Shopping Center [Member] Marketplace at Briargate [Member] Marketplace at Briargate [Member] Marketplace at Briargate [Member] Millhopper Shopping Center [Member] Millhopper Shopping Center [Member] Millhopper Shopping Center [Member] Mockingbird Common [Member] Mockingbird Common [Member] Mockingbird Common [Member] Monument Jackson Creek [Member] Monument Jackson Creek [Member] Monument Jackson Creek [Member] Morningside Plaza [Member] Morningside Plaza [Member] Morningside Plaza [Member] Murrayhill Marketplace [Member] Murrayhill Marketplace [Member] Murrayhill Marketplace [Member] Naples Walk [Member] Naples Walk [Member] Naples Walk [Member] Newberry Square [Member] Newberry Square [Member] Newberry Square [Member] Newland Center [Member] Newland Center [Member] Newland Center [Member] Nocatee Town Center [Member] Nocatee Town Center [Member] Nocatee Town Center [Member] North Hills [Member] North Hills [Member] North Hills [Member] Northgate Marketplace [Member] Northgate Marketplace [Member] Northgate Marketplace [Member] Northgate Plaza (Maxtown Road) [Member] Northgate Plaza (Maxtown Road) [Member] Northgate Plaza (Maxtown Road) [Member] Northgate Square [Member] Northgate Square [Member] Northgate Square [Member] Northlake Village [Member] Northlake Village [Member] Northlake Village [Member] Oak Shade Town Center [Member] Oak Shade Town Center [Member] Oak Shade Town Center [Member] Oakbrook Plaza [Member] Oakbrook Plaza [Member] Oakbrook Plaza [Member] Oakleaf Commons [Member] Oakleaf Commons [Member] Oakleaf Commons [Member] Ocala Corners [Member] Ocala Corners [Member] Ocala Corners [Member] Old St Augustine Plaza [Member] Old St Augustine Plaza [Member] Old St Augustine Plaza [Member] Paces Ferry Plaza [Member] Paces Ferry Plaza [Member] Paces Ferry Plaza [Member] Panther Creek [Member] Panther Creek [Member] Panther Creek [Member] Peartree Village [Member] Peartree Village [Member] Peartree Village [Member] Persimmon Place [Member] Persimmon Place [Member] Persimmon Place [Member] Pike Creek [Member] Pike Creek [Member] Pike Creek [Member] Pine Lake Village [Member] Pine Lake Village [Member] Pine Lake Village [Member] Pine Tree Plaza [Member] Pine Tree Plaza [Member] Pine Tree Plaza [Member] Plaza Hermosa [Member] Plaza Hermosa [Member] Plaza Hermosa [Member] Powell Street Plaza [Member] Powell Street Plaza [Member] Powell Street Plaza [Member] Powers Ferry Square [Member] Powers Ferry Square [Member] Powers Ferry Square [Member] Powers Ferry Village [Member] Powers Ferry Village [Member] Powers Ferry Village [Member] Prairie City Crossing [Member] Prairie City Crossing [Member] Prairie City Crossing [Member] Prestonbrook [Member] Prestonbrook [Member] Prestonbrook [Member] Preston Park [Member] Preston Park [Member] Preston Park [Member] Red Bank [Member] Red Bank [Member] Red Bank [Member] Regency Commons [Member] Regency Commons [Member] Regency Commons [Member] Regency Square [Member] Regency Square [Member] Regency Square [Member] Rona Plaza [Member] Rona Plaza [Member] Rona Plaza [Member] San Leandro Plaza [Member] San Leandro Plaza [Member] San Leandro Plaza [Member] Sandy Springs [Member] Sandy Springs [Member] Sandy Springs [Member] Saugus [Member] Saugus [Member] Saugus [Member] Sequoia Station [Member] Sequoia Station [Member] Sequoia Station [Member] Sherwood Market Center [Member] Sherwood Market Center [Member] Sherwood Market Center [Member] Shoppes @ 104 [Member] Shoppes @ 104 [Member] Shoppes @ 104 [Member] Shoppes of Grande Oak [Member] Shoppes of Grande Oak [Member] Shoppes of Grande Oak [Member] Shops at Arizona [Member] Shops at Arizona [Member] Shops at Arizona [Member] Shops at County Center [Member] Shops at County Center [Member] Shops at County Center [Member] Shops at Erwin Mill [Member] Shops at Erwin Mill [Member] Shops at Erwin Mill [Member] Shops at Johns Creek [Member] Shops at Johns Creek [Member] Shops at Johns Creek [Member] Shops at Mira Vista [Member] Shops at Mira Vista [Member] Shops at Mira Vista [Member] Shops at Quail Creek [Member] Shops at Quail Creek [Member] Shops at Quail Creek [Member] Shops on Main [Member] Shops on Main [Member] Shops on Main [Member] South Bay Village [Member] South Bay Village [Member] South Bay Village [Member] Southcenter [Member] Southcenter [Member] Southcenter [Member] Southpark at Cinco Ranch [Member] Southpark at Cinco Ranch [Member] Southpark at Cinco Ranch [Member] SouthPoint Crossing [Member] SouthPoint Crossing [Member] SouthPoint Crossing [Member] Starke [Member] Starke [Member] Starke [Member] Sterling Ridge [Member] Sterling Ridge [Member] Sterling Ridge [Member] Stonewall [Member] Stonewall [Member] Stonewall [Member] Strawflower Village [Member] Strawflower Village [Member] Strawflower Village [Member] Stroh Ranch [Member] Stroh Ranch [Member] Stroh Ranch [Member] Suncoast Crossing [Member] Suncoast Crossing [Member] Suncoast Crossing [Member] Tanasbourne Market [Member] Tanasbourne Market [Member] Tanasbourne Market [Member] Tassajara Crossing [Member] Tassajara Crossing [Member] Tassajara Crossing [Member] Tech Ridge [Member] Tech Ridge [Member] Tech Ridge [Member] The Hub Hillcrest Market [Member] The Hub Hillcrest Market [Member] The Hub Hillcrest Market [Member] Town Square [Member] Town Square [Member] Town Square [Member] Twin City Plaza [Member] Twin City Plaza [Member] Twin City Plaza [Member] Twin Peaks [Member] Twin Peaks [Member] Twin Peaks [Member] University Commons [Member] University Commons [Member] University Commons [Member] Valencia Crossroads [Member] Valencia Crossroads [Member] Valencia Crossroads [Member] Village at La Floresta [Member] Village at La Floresta [Member] Village at La Floresta [Member] Village at Lee Airpark [Member] Village at Lee Airpark [Member] Village at Lee Airpark [Member] Village Center [Member] Village Center [Member] Village Center [Member] Walker Center [Member] Walker Center [Member] Walker Center [Member] Welleby Plaza [Member] Welleby Plaza [Member] Welleby Plaza [Member] Wellington Town Square [Member] Wellington Town Square [Member] Wellington Town Square [Member] West Park Plaza [Member] West Park Plaza [Member] West Park Plaza [Member] Westchase [Member] Westchase [Member] Westchase [Member] Westchester Plaza [Member] Westchester Commons [Member] Westchster Commons [Member] Westchester Plaza [Member] Westchester Plaza [Member] Westchester Plaza [Member] Westlake Plaza and Center [Member] Westlake Plaza and Center [Member] Westlake Plaza and Center [Member] Westwood Village [Member] Westwood Village [Member] Westwood Village [Member] Willow Festival [Member] Willow Festival [Member] Willow Festival [Member] Woodcroft Shopping Center [Member] Woodcroft Shopping Center [Member] Woodcroft Shopping Center [Member] Woodman Van Nuys [Member] Woodman Van Nuys [Member] Woodman Van Nuys [Member] Woodmen Plaza [Member] Woodmen Plaza [Member] Woodmen Plaza [Member] Properties in Development [Member] Properties in Development [Member] Properties in Development [Member] Russell Ridge [Member] Russell Ridge [Member] Russell Ridge [Member] Sammamish-Highlands [Member] Sammamish-Highlands [Member] Sammamish-Highlands [Member] Woodside Central [Member] Woodside Central [Member] Woodside Central [Member] Corporately Held Assets [Member] Corporately Held Assets [Member] Corporately Held Assets [Member] Land Held for Future Development [Member] Land Held for Future Development [Member] Land Held for Future Development [Member] Real Estate and Accumulated Depreciation [Line Items] SEC Schedule III, Real Estate and Accumulated Depreciation [Line Items] Property, Plant and Equipment, Useful Life Property, Plant and Equipment, Useful Life Award vesting period Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period Initial Cost SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost [Abstract] Land SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Land Building & Improvements SEC Schedule III, Real Estate and Accumulated Depreciation, Initial Cost of Buildings and Improvements Costs Capitalized Subsequent to Acquisition SEC Schedule III, Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Carrying Costs Total Cost SEC Schedule III, Real Estate, Gross [Abstract] Land SEC Schedule III, Real Estate and Accumulated Depreciation, Carrying Amount of Land Building & Improvements SEC Schedule III, Real Estate and Accumulated Depreciation, Carrying Amount of Buildings and Improvements Total SEC Schedule III, Real Estate, Gross Accumulated Depreciation SEC Schedule III, Real Estate Accumulated Depreciation Total Cost, Net of Accumulated Depreciation SEC Schedule III, Real Estate Investment Property, Net SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances SEC Schedule III, Real Estate and Accumulated Depreciation, Amount of Encumbrances Aggregate cost for Federal income tax purposes SEC Schedule III, Real Estate, Federal Income Tax Basis Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] SEC Schedule III, Reconciliation of Carrying Amount of Real Estate Investments [Roll Forward] Beginning balance Acquired properties SEC Schedule III, Real Estate, Other Acquisitions Developments and improvements SEC Schedule III, Real Estate, Improvements Sale of properties SEC Schedule III, Real Estate, Cost of Real Estate Sold SEC Schedule III, Real Estate, Write-down or Reserve, Amount SEC Schedule III, Real Estate, Write-down or Reserve, Amount Ending balance Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] SEC Schedule III, Reconciliation of Real Estate Accumulated Depreciation [Roll Forward] Beginning balance Depreciation expense SEC Schedule III, Real Estate Accumulated Depreciation, Depreciation Expense Sale of properties SEC Schedule III, Real Estate Accumulated Depreciation, Real Estate Sold Provision for impairment SEC Schedule III, Real Estate Accumulated Depreciation, Other Deductions Ending balance Schedule of Business Acquisitions, by Acquisition [Table] Schedule of Business Acquisitions, by Acquisition [Table] Finite-Lived Intangible Liabilities [Axis] Finite-Lived Intangible Liabilities [Axis] Finite-Lived Intangible Liabilities [Axis] Finite-Lived Intangible Liabilities [Domain] Finite-Lived Intangible Liabilities [Domain] [Domain] for Finite-Lived Intangible Liabilities [Axis] Off-Market Lease, Unfavorable [Member] Off-Market Lease, Unfavorable [Member] Off-Market Lease, Unfavorable [Member] Finite-Lived Intangible Assets by Major Class [Axis] Off-Market Favorable Lease [Member] Off-Market Favorable Lease [Member] Operating Segments [Member] Operating Segments [Member] Income Statement Location [Axis] Income Statement Location [Axis] Income Statement Location [Domain] Income Statement Location [Domain] Gain on sale of real estate investments [Member] Gain on sale of real estate investments [Member] Gain on sale of real estate investments [Member] Equity Method Investee, Name [Axis] Investment, Name [Axis] Equity Method Investee, Name [Domain] Investment, Name [Domain] Columbia Regency Partners II, LLC [Member] Columbia Regency Partners II, LLC [Member] Columbia Regency Partners II, LLC [Member] GRI - Regency, LLC [Member] Gri - Regency, Llc [Member] Gri - Regency, Llc [Member] Other Investments in Real Estate Partnerships [Member] Other Investments in Real Estate Partnerships [Member] Other Investments in Real Estate Partnerships [Member] RegCal, LLC [Member] RegCal, LLC [Member] RegCal, LLC [Member] Business Acquisition [Axis] Business Acquisition [Axis] Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Applewood Village [Member] Applewood Village [Member] Applewood Village [Member] Garden City [Member] Plaza Venezia [Member] Plaza Venezia [Member] Business Acquisition [Line Items] Business Acquisition [Line Items] Proceeds from sale of real estate investments Proceeds from Sale of Real Estate Held-for-investment Gain on sale of real estate Equity Method Investment, Summarized Financial Information, Gain Loss on Sale of Real Estate Equity Method Investment, Summarized Financial Information, Gain Loss on Sale of Real Estate Equity in income of investments in real estate partnerships (note 4) Income (Loss) from Equity Method Investments Business Acquisition, Effective Date of Acquisition Business Acquisition, Effective Date of Acquisition Business Acquisition, Name of Acquired Entity Business Acquisition, Name of Acquired Entity Business Acquisition Location, City and State Business Acquisition Location, City and State Business Acquisition Location, City and State Business Acquisition, Description of Acquired Entity Business Acquisition, Description of Acquired Entity Business Acquisition, Co-investment Partner Business Acquisition, Co-investment Partner Business Acquisition, Co-investment Partner Equity Method Investment, Ownership Percentage Equity Method Investment, Ownership Percentage Mortgage loans assumed for the acquisition of real estate Noncash or Part Noncash Acquisition, Debt Assumed Acquired Finite-lived Intangible Asset, Amount Finite-lived Intangible Assets Acquired Acquired Finite Lived Intangible Liability Amount Acquired Finite Lived Intangible Liability, Amount Acquired Finite Lived Intangible Liability, Amount Payments to Acquire Businesses, Gross Payments to Acquire Businesses, Gross Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Liabilities Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Finite-Lived Intangibles Investments in real estate partnerships (note 4) Preferred Stock, Dividend Rate, Percentage Preferred Stock, Dividend Rate, Percentage Number of Real Estate Properties Sold Number of Real Estate Properties Sold Number of Real Estate Properties Sold During the period. Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Notes Payable, Other Payables [Member] Notes Payable, Other Payables [Member] Receivable Type [Axis] Receivable [Domain] Notes Receivable [Member] Notes Receivable [Member] Eligible Item or Group for Fair Value Option [Axis] Eligible Item or Group for Fair Value Option [Axis] Fair Value, Option, Eligible Item or Group [Domain] Fair Value, Option, Eligible Item or Group [Domain] Notes Payable to Banks [Member] Notes Payable to Banks [Member] Unsecured Credit Facilities [Member] unsecured credit facilities [Member] unsecured credit facilities [Member] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Derivative Liability Derivative Liability Notes Payable Notes Payable Fair Value Assumptions, Risk Free Interest Rate Fair Value Assumptions, Risk Free Interest Rate Notes Receivable, Fair Value Notes Receivable, Fair Value Disclosure Notes Payable, Fair Value Notes Payable, Fair Value Disclosure Debt Instrument, Fair Value Disclosure Debt Instrument, Fair Value Disclosure Unsecured Debt Unsecured Debt Schedule of Tax Status of Dividends [Table Text Block] Schedule of Tax Status of Dividends [Table Text Block] Schedule of Tax Status of Dividends [Table Text Block] Schedule of Preferred Stock [Table Text Block] Schedule of Preferred Stock [Table Text Block] [Table Text Block] for Schedule of Preferred Stock [Table] Schedule of Market Equity Distributions [Table Text Block] Schedule of Market Equity Distributions [Table Text Block] Schedule of Market Equity Distributions [Table Text Block] Schedule of Capital Units [Table Text Block] Schedule of Capital Units [Table Text Block] Schedule of Accumulated Other Comprehensive Income (Loss) Schedule of Accumulated Other Comprehensive Income (Loss) [Table Text Block] Reclassification out of Accumulated Other Comprehensive Income [Table Text Block] Reclassification out of Accumulated Other Comprehensive Income [Table Text Block] New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets New Accounting Pronouncement or Change in Accounting Principle, Cumulative Effect of Change on Equity or Net Assets Line of Credit [Member] Line of Credit [Member] Term Loan - Unsecured [Member] Term Loan - Unsecured [Member] Term Loan - Unsecured [Member] Construction Loans [Member] Construction Loans [Member] Line of Credit Facility - Unsecured [Member] Line of Credit Facility - Unsecured [Member] Unsecured Credit Line [Member] Debt Instrument, Interest Rate Terms Debt Instrument, Interest Rate Terms Debt Instrument, Basis Spread on Variable Rate Debt Instrument, Basis Spread on Variable Rate Line of Credit Facility, Unsecured, Interest Rate Description Line of Credit Facility, Interest Rate Description Line of Credit Facility, Unsecured, Annual Facility Fee Line of Credit Facility, Annual Fee Description Line of Credit Facility, Annual Fee Description Line of Credit Facility, Commitment Fee Percentage Line of Credit Facility, Commitment Fee Percentage Earnings per Share and Unit [Abstract] Earnings Per Share and Unit [Abstract] Schedule of Earnings Per Share, Basic, by Common Class, Including Two Class Method [Table] Schedule of Earnings Per Share, Basic, by Common Class, Including Two Class Method [Table] Continuing operations Continuing Operations [Member] Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items] Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items] Numerator [Abstract] Numerator [Abstract] Numerator [Abstract] Less: preferred stock dividends Net income attributable to noncontrolling interests Net income (loss) attributable to common stockholders Net (loss) income attributable to common unit holders Net (loss) income for common stockholders - diluted Net Income (Loss) Available to Common Stockholders, Diluted Denominator [Abstract] Denominator [Abstract] Denominator [Abstract] Weighted average common shares/units outstanding for basic EPS/EPU Weighted Average Number of Shares Outstanding, Basic Weighted average common shares/units outstanding for diluted EPS/EPU Weighted Average Number of Shares Outstanding, Diluted Income per common share - basic (note 13): Earnings Per Share, Basic [Abstract] Continuing operations (in dollars per share) Discontinued operations (in dollars per share) Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Basic Share Net income attributable to common stockholders (in dollars per share) Earnings Per Share, Basic Income per common share - diluted (note 13): Earnings Per Share, Diluted [Abstract] Continuing operations (in dollars per share) Discontinued operations (in dollars per share) Income (Loss) from Discontinued Operations and Disposal of Discontinued Operations, Net of Tax, Per Diluted Share Net income (loss) attributable to common stockholders (in dollars per share) Earnings Per Common Unit, Basic [Abstract] Earnings Per Common Unit, Basic [Abstract] Earnings Per Common Unit, Basic [Abstract] Continuing operations (in dollars per share) Income (Loss) from Continuing Operations, Per Outstanding Limited Partnership Unit, Basic, Net of Tax Discontinued operations (in dollars per share) Income (Loss) from Discontinued Operations, Net of Tax, Per Outstanding Limited Partnership Unit, Basic Net income attributable to common unit holders (in dollars per share) Net Income (Loss), Per Outstanding Limited Partnership Unit, Basic, Net of Tax Earnings Per Common Unit - Diluted [Abstract] Earnings Per Common Unit - Diluted [Abstract] Earnings Per Common Unit - Diluted [Abstract] Continuing operations (in dollars per share) Income (Loss) from Continuing Operations, Net of Tax, Per Outstanding Limited Partnership Unit, Diluted Discontinued operations (in dollars per share) Income (Loss) from Discontinued Operations, Net of Tax, Per Outstanding Limited Partnership Unit, Diluted Net Income (Loss), Net of Tax, Per Outstanding Limited Partnership Unit, Diluted Net Income (Loss), Net of Tax, Per Outstanding Limited Partnership Unit, Diluted Income from continuing operations Income (Loss) from Continuing Operations, Including Portion Attributable to Noncontrolling Interest Statement of Comprehensive Income [Abstract] Net income Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net Derivative Instruments, Gain (Loss) Recognized in Other Comprehensive Income (Loss), Effective Portion, Net Reclassification adjustment of derivative instruments included in net income Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, before Tax Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, before Tax Other Comprehensive Income (Loss), Reclassification Adjustment from AOCI for Sale of Securities, Net of Tax Other comprehensive income (loss) Comprehensive income Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Less: comprehensive income (loss) attributable to noncontrolling interests: Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest [Abstract] Comprehensive income attributable to noncontrolling interests Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Comprehensive income attributable to the Company Comprehensive Income (Loss), Net of Tax, Attributable to Parent Statement of Cash Flows [Abstract] Capitalized interest Interest Paid, Capitalized Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Schedule of Share-based Compensation Arrangements by Share-based Payment Award [Table] Award Type [Axis] Award Type [Axis] Award Type [Domain] Equity Award [Domain] Restricted Stock [Member] Restricted Stock [Member] Time Based Awards Granted Time Based Awards Granted [Member] Time Based Awards Granted [Member] Performance Based Awards Granted Performance Based Awards Granted [Member] Performance Based Awards Granted [Member] Market Based Awards Granted Market Based Awards Granted [Member] Market Based Awards Granted [Member] Common Stock [Member] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Share-based Compensation Arrangement by Share-based Payment Award [Line Items] Allocated Share-based Compensation Expense Allocated Share-based Compensation Expense Noninterest Expense Directors Fees Noninterest Expense Directors Fees Less: Amount capitalized Employee Service Share-based Compensation, Allocation of Recognized Period Costs, Capitalized Amount Total Stock-Based Compensation Share-based Compensation Number of shares authorized Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward] Stock Options, Outstanding, Beginning Balance Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number Stock Options, Exercised Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period Stock Options, Outstanding, Ending Balance Stock Options, Vested and Expected to Vest Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Number Stock Options, Exercisable Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Number Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Roll Forward] Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract] Stock Options, Outstanding, Weighted Average Exercise Price, Beginning Balance Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price Stock Options, Outstanding, Weighted Average Exercise Price, Ending Balance Stock Options, Vested and Expected to Vest, Weighted Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Exercise Price Stock Options, Exercisable, Weighted Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Exercise Price Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract] Stock Options, Outstanding, Weighted Average Remaining Contractual Term in Years. Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Remaining Contractual Term Stock Options, Vested and Expected to Vest, Weighted Average Remaining Contractual Term in Years Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Weighted Average Remaining Contractual Term Stock Options, Exercisable, Weighted Average Remaining Contractual Term in Years Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Weighted Average Remaining Contractual Term Stock Options, Outstanding, Aggregate Intrinsic Value, Beginning Balance Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Intrinsic Value Stock Options, Outstanding, Aggregate Intrinsic Value, Ending Balance Stock Options, Vested and Expected to Vest, Aggregate Intrinsic Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Vested and Expected to Vest, Outstanding, Aggregate Intrinsic Value Stock Options, Exercisable, Aggregate Intrinsic Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercisable, Intrinsic Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Total Intrinsic Value Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number of Shares [Roll Forward] Restricted Stock, Non-Vested, Shares Outstanding, Beginning Balance Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number Restricted Stock, Shares Granted Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period Restricted Stock, Shares Vested and Distributed Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period Restricted Stock, Shares Forfeited Stock Issued During Period, Shares, Restricted Stock Award, Forfeited Restricted Stock, Non-Vested, Shares Outstanding, Ending Balance Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract] Restricted Stock, Non-Vested, Intrinsic Value Non-Vested Restricted Stock Intrinsic Value Non-Vested Restricted Stock Intrinsic Value Restricted Stock, Shares Granted, Weighted Average Grant Price Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value Restricted Stock, Shares Vested and Distributed, Weighted Average Grant Price Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Vested in Period, Weighted Average Grant Date Fair Value Restricted Stock, Shares Forfeited, Weighted Average Grant Price Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Forfeitures, Weighted Average Grant Date Fair Value Restricted Stock, Shares Granted, Total Weighted Average Grant Price Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price Restricted Stock, Non-Vested, Unrecognized Compensation Cost Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Net of Forfeitures Number of shares available for grant Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Available for Grant Awards granted, lives Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Term Period for recognition for compensation costs Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Expected Volatility Rate Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions, Risk Free Interest Rate Consolidated Real Estate and Accumulated Depreciation SEC Schedule III, Real Estate and Accumulated Depreciation Disclosure [Text Block] Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Table] Property, Plant and Equipment by Type [Axis] Tenant Improvements [Member] Tenant Improvements [Member] Tenant Improvements [Member] Furniture and Fixtures [Member] Furniture and Fixtures [Member] Wholly Owned Properties [Member] Wholly Owned Properties [Member] Partially Owned Properties [Member] Partially Owned Properties [Member] Consolidated Properties [Member] Consolidated Properties [Member] Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Effects of Changes, Net [Line Items] Prior Period Reclassification Adjustment Prior Period Reclassification Adjustment Receivable with Imputed Interest, Effective Yield (Interest Rate) Receivable with Imputed Interest, Effective Yield (Interest Rate) Equity Method Investment, Accretion Period Equity Method Investment, Accretion Period Equity Method Investment, Accretion Period Operations Commenced Date Operations Commenced Date Guarantor Obligations, Percent of Secured Debt Guaranteed by Parent Guarantor Obligations, Percent of Secured Debt Guaranteed by Parent Guarantor Obligations, Percent of Secured Debt Guaranteed by Parent Parent Company, Ownership Percentage of Outstanding Common Partnership Units of Operating Partnership Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Ownership Interest Number of Real Estate Properties Number of Real Estate Properties General Partners' Capital Account, Units Outstanding Partners' Capital Account, Units Partners' Capital Account, Units Number Of Joint Ventures That Grant Each Partner A Right To Dissolve The Real Estate Partnership Maximum Period Of TIme In Which Company Capitalizes Interest Costs Maximum Period Of TIme In Which Company Capitalizes Interest Costs Maximum Period Of TIme In Which Company Capitalizes Interest Costs Restricted Cash and Cash Equivalents Restricted Cash and Cash Equivalents Tax Basis of Investments, Unrealized Appreciation (Depreciation), Net Tax Basis of Investments, Unrealized Appreciation (Depreciation), Net Acquired Lease Intangible Intangible Assets Disclosure [Text Block] Compensation and Retirement Disclosure [Abstract] Schedule of Deferred Compensation Arrangement with Individual, Postretirement Benefits [Table] Schedule of Deferred Compensation Arrangement with Individual, Postretirement Benefits [Table] Title of Individual [Axis] Title of Individual [Axis] Relationship to Entity [Domain] Relationship to Entity [Domain] Other Postretirement Benefits, Individual Contracts, Type of Deferred Compensation [Axis] Other Postretirement Benefits, Individual Contracts, Type of Deferred Compensation [Axis] Other Postretirement Benefits, Individual Contracts, Type of Deferred Compensation [Domain] Other Postretirement Benefits, Individual Contracts, Type of Deferred Compensation [Domain] Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items] Deferred Compensation Arrangement with Individual, Postretirement Benefits [Line Items] Deferred Compensation Arrangement with Individual Disclosure, Postretirement Benefits [Table Text Block] Deferred Compensation Arrangement with Individual Disclosure, Postretirement Benefits [Table Text Block] Proceeds from sale of real estate investments Equity Method Investment, Net Sales Proceeds Revenues and expenses for the investments in real estate partnerships on a combined basis Equity Method Investment, Summarized Financial Information, Income Statement [Abstract] Total revenues Equity Method Investment, Summarized Financial Information, Revenue Operating expenses: Equity Method Investment, Summarized Financial Information, Operating Expenses [Abstract] Equity Method Investment, Summarized Financial Information, Operating Expenses [Abstract] Depreciation and amortization Equity Method Investment, Summarized Financial Information, Depreciation and Amortization Equity Method Investment, Summarized Financial Information, Depreciation and Amortization Operating and maintenance Equity Method Investment, Summarized Financial Information, Operating and Maintenance Equity Method Investment, Summarized Financial Information, Operating and Maintenance General and administrative Equity Method Investment, Summarized Financial Information, General and Administrative Equity Method Investment, Summarized Financial Information, General and Administrative Real estate taxes Equity Method Investment, Summarized Financial Information, Real Estate Taxes Equity Method Investment, Summarized Financial Information, Real Estate Taxes Other expenses Equity Method Investment, Summarized Financial Information, Other Expenses Equity Method Investment, Summarized Financial Information, Other Expenses Total operating expenses Equity Method Investment, Summarized Financial Information, Operating Expenses Equity Method Investment, Summarized Financial Information, Operating Expenses Other expense (income): Equity Method Investment, Summarized Financial Information, Other Expense Income [Abstract] Equity Method Investment, Summarized Financial Information, Other Expense Income [Abstract] Interest expense, net Equity Method Investment, Summarized Financial Information, Interest Expense, Net Equity Method Investment, Summarized Financial Information, Interest Expense, Net Equity Method Investment, Summarized Financial Information, Gain Loss on Sale of Real Estate Loss (gain) on extinguishment of debt Equity Method Investment, Summarized Financial Information, Gain Loss on Extinguishment of Debt Equity Method Investment, Summarized Financial Information, Gain Loss on Extinguishment of Debt Provision for impairment Equity Method Investment, Summarized Financial Information, Provision for Impairment Equity Method Investment, Summarized Financial Information, Provision for Impairment Preferred return on equity investment Equity Method Investment, Summarized Financial Information, Preferred Return on Equity Investment Equity Method Investment, Summarized Financial Information, Preferred Return on Equity Investment Other expense (income) Equity Method Investment, Summarized Financial Information, Other Expense (Income) Equity Method Investment, Summarized Financial Information, Other Expense (Income) Total other expense Equity Method Investment, Summarized Financial Information, Total Other Expense Income Equity Method Investment, Summarized Financial Information, Total Other Expense Income Net income (loss) Equity Method Investment, Summarized Financial Information, Net Income (Loss) Income (Loss) from Equity Method Investments Equity Method Investment, Realized Gain (Loss) on Disposal Equity Method Investment, Amount Sold Equity Method Investment, Realized Gain (Loss) on Disposal, Parent Company's Share Equity Method Investment, Realized Gain (Loss) on Disposal, Parent Company's Share Revenues: Revenues [Abstract] Minimum rent Operating Leases, Income Statement, Minimum Lease Revenue Percentage rent Operating Leases, Income Statement, Percentage Revenue Recoveries from tenants and other income Tenant Reimbursements Total revenues Management Fees Revenue Management Fees Revenue Operating expenses: Operating Expenses [Abstract] Depreciation and amortization Depreciation, Depletion and Amortization, Nonproduction Operating and maintenance Operating Costs and Expenses General and administrative General and Administrative Expense Real estate taxes Real Estate Tax Expense Other operating expenses Other Cost of Operating Revenue Total operating expenses Operating Expenses Other expense (income) [Abstract] Nonoperating Income (Expense) [Abstract] Interest Expense Interest Expense Early extinguishment of debt Gains (Losses) on Extinguishment of Debt Net investment income, including unrealized (gains) losses of ($773), $1,734, and $1,058 in 2016, 2015, and 2014, respectively (notes 11) Marketable Securities, Gain (Loss), Excluding Other than Temporary Impairments Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain Gain (Loss) on Derivative Instruments, Net, Pretax Gain (Loss) on Derivative Instruments, Net, Pretax Nonoperating Income (Expense) Nonoperating Income (Expense) Income from operations before equity in income of investments in real estate partnerships Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest Federal Income Tax Expense (Benefit), Continuing Operations Federal Income Tax Expense (Benefit), Continuing Operations Income (Loss) from Continuing Operations, Including Portion Attributable to Noncontrolling Interest Discontinued operations, net (note 3): Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest [Abstract] Gain on sale of operating properties, net of tax Discontinued Operation, Gain (Loss) on Disposal of Discontinued Operation, Net of Tax Gain (Loss) on Sale of Properties, Net of Applicable Income Taxes Gain (Loss) on Sale of Properties, Net of Applicable Income Taxes Noncontrolling interests: Noncontrolling Interest [Abstract] Noncontrolling Interest in Net Income (Loss) Operating Partnerships, Nonredeemable Noncontrolling Interest in Net Income (Loss) Limited Partnerships, Nonredeemable Noncontrolling Interest in Net Income (Loss) Limited Partnerships, Nonredeemable Income attributable to noncontrolling interests Net income attributable to the Company Preferred unit distributions Distributions Paid To Preferred Unit Holders Distributions Paid To Preferred Unit Holders. Net Income (Loss) Available to Common Stockholders, Basic Net Income (Loss), Per Outstanding Limited Partnership Unit, Diluted Saving and Retirement Plans Compensation and Employee Benefit Plans [Text Block] Summary of Significant Accounting Policies Organization, Consolidation and Presentation of Financial Statements Disclosure and Significant Accounting Policies [Text Block] Schedule of Net Accumulated Amortization and Accretion Schedule of Net Accumulated Amortization and Accretion [Table Text Block] Schedule of Net Accumulated Amortization and Accretion [Table Text Block] Schedule of Future Amortization Expense and Minimum Rent Schedule of Future Amortization Expense and Minimum Rent [Table Text Block] Schedule of Future Amortization Expense and Minimum Rent [Table Text Block] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Debt Instrument, Redemption, Period [Axis] Debt Instrument, Redemption, Period [Axis] Debt Instrument, Redemption, Period [Domain] Debt Instrument, Redemption, Period [Domain] Debt Instrument [Line Items] Debt Instrument [Line Items] Schedule of Long-term Debt Instruments [Table Text Block] Schedule of Long-term Debt Instruments [Table Text Block] Schedule of Debt [Table Text Block] Schedule of Debt [Table Text Block] Schedule of Line of Credit Facilities [Table Text Block] Schedule of Line of Credit Facilities [Table Text Block] Schedule of Maturities of Long-term Debt [Table Text Block] Schedule of Maturities of Long-term Debt [Table Text Block] Management fee income [Abstract] Management fee income [Abstract] Schedule of Related Party Transactions, by Related Party [Table] Schedule of Related Party Transactions, by Related Party [Table] Related Party [Axis] Related Party [Axis] Related Party [Domain] Related Party [Domain] Related Party Transaction [Axis] Related Party Transaction [Axis] Related Party Transaction [Domain] Related Party Transaction [Domain] Related Party Transaction [Line Items] Related Party Transaction [Line Items] Revenue from Related Parties Revenue from Related Parties Business Combinations [Abstract] Business Acquisition, Pro Forma Information [Table] Business Acquisition, Pro Forma Information [Table] Business Acquisition, Pro Forma Information [Table] Finite-Lived Intangible Liabilities by Major Class [Axis] Finite-Lived Intangible Liabilities by Major Class [Axis] Finite-Lived Intangible Liabilities by Major Class [Axis] Finite-Lived Intangible Liabilities by Major Class [Domain] Finite-Lived Intangible Liabilities by Major Class [Domain] [Domain] for Finite-Lived Intangible Liabilities by Major Class [Axis] Acquired Lease Intangible Liabilities [Member] Acquired Lease Intangible Liabilities [Member] Acquired Lease Intangible Liabilities [Member] Leases, Acquired-in-Place [Member] Leases, Acquired-in-Place [Member] Business Acquisition, Pro Forma Information [Line Items] Business Acquisition, Pro Forma Information [Line Items] [Line Items] for Business Acquisition, Pro Forma Information [Table] Acquired Finite-lived Intangible Assets, Weighted Average Useful Life Acquired Finite-lived Intangible Assets, Weighted Average Useful Life Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual Business Combination, Pro Forma Information, Revenue of Acquiree since Acquisition Date, Actual Business Combination, Pro Forma Information, Expenses of Acquiree since Acquisition Date, Actual Business Combination, Pro Forma Information, Expenses of Acquiree since Acquisition Date, Actual Business Combination, Pro Forma Information, Expenses of Acquiree since Acquisition Date, Actual Business Combination, Transaction Costs Business Combination, Separately Recognized Transactions, Additional Disclosures, Acquisition Cost Expensed Business Acquisition, Pro Forma Revenue Business Acquisition, Pro Forma Revenue Business Acquisition, Pro Forma Income (Loss) from Continuing Operations before Changes in Accounting and Extraordinary Items, Net of Tax Business Acquisition, Pro Forma Income (Loss) from Continuing Operations before Changes in Accounting and Extraordinary Items, Net of Tax Business Acquisition, Pro Forma Net Income (Loss) Business Acquisition, Pro Forma Net Income (Loss) Business Acquisition, Pro Forma Earnings Per Share, Basic Business Acquisition, Pro Forma Earnings Per Share, Basic Business Acquisition, Pro Forma Earnings Per Share, Diluted Business Acquisition, Pro Forma Earnings Per Share, Diluted Weighted Average Accretion Period of Intangible Liabilities Weighted Average Accretion Period of Intangible Liabilities Weighted Average Accretion Period of Intangible Liabilities Operating Leases Operating Leases of Lessor Disclosure [Text Block] Real Estate [Abstract] Above Market Lease [Member] Above Market Leases [Member] Northgate Ph II [Member] Northgate Ph II [Member] Northgate Ph II [Member] The Market at Springwoods Village [Member] The Market at Springwoods Village [Member] The Market at Springwoods Village [Member] The Village at Tustin Legacy [Member] The Village at Tustin Legacy [Member] The Village at Tustin Legacy [Member] Nocatee Phase III [Member] Nocatee Phase III [Member] Nocatee Phase III [Member] Brooklyn Station Phase II [Member] Brooklyn Station Phase II [Member] Brooklyn Station Phase II [Member] The Village at Riverstone [Member] The Village at Riverstone [Member] The Village at Riverstone [Member] East San Marco [Member] East San Marco [Member] East San Marco [Member] Sandy Springs [Member] Southpark at Cinco Ranch [Member] Equity Method Investee, Name [Domain] Business Acquisition, Percentage of Voting Interests Acquired Business Acquisition, Percentage of Voting Interests Acquired Payments for Deposits on Real Estate Acquisitions Payments for Deposits on Real Estate Acquisitions Off-market Lease, Unfavorable Real estate received through foreclosure on notes receivable Real Estate Received Through Foreclosure On Notes Receivable Real Estate Received Through Foreclosure On Notes Receivable Business Acquisition, Property type Business Combination, Step Acquisition, Equity Interest in Acquiree, Remeasurement Gain Business Combination, Step Acquisition, Equity Interest in Acquiree, Fair Value Business Combination, Step Acquisition, Equity Interest in Acquiree, Fair Value Business Combination, Acquisition of Less than 100 Percent, Noncontrolling Interest, Fair Value Business Combination, Acquisition of Less than 100 Percent, Noncontrolling Interest, Fair Value Mortgage loans assumed for the acquisition of real estate Derivative Financial Instruments Derivative Instruments and Hedging Activities Disclosure [Text Block] Schedule of Variable Interest Entities [Table Text Block] Schedule of Variable Interest Entities [Table Text Block] Provisions for Doubtful Accounts [Table Text Block] Provisions for Doubtful Accounts [Table Text Block] Provisions for Doubtful Accounts [Table Text Block] Receivables, Trade and Other Accounts Receivable, Allowance for Doubtful Accounts, Policy [Policy Text Block] Receivables, Trade and Other Accounts Receivable, Allowance for Doubtful Accounts, Policy [Policy Text Block] Schedule of Accounts, Notes, Loans and Financing Receivable Schedule of Accounts, Notes, Loans and Financing Receivable [Table Text Block] Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Schedule of Derivative Instruments, Gain (Loss) in Statement of Financial Performance [Table Text Block] Derivative Instruments, Gain (Loss) [Table Text Block] Terms and Conditions of Preferred Stock (details) [Abstract] Terms and Conditions of Preferred Stock (details) [Abstract] Schedule of Stock by Class [Table] Schedule of Stock by Class [Table] Sale of Stock [Axis] Sale of Stock [Axis] Sale of Stock [Domain] Sale of Stock [Domain] Equity Offering [Member] Equity Offering [Member] Equity Offering [Member] ATM Equity Offering Program [Member] ATM Equity Offering Program [Member] ATM Equity Offering Program [Member] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Subsequent Event [Member] Subsequent Event [Member] At-the-Market equity programs [Axis] At-the-Market equity programs [Axis] At-the-Market equity programs [Axis] August 2012 $150M ATM Program [Domain] August 2012 $150M ATM Program [Domain] August 2012 $150M ATM Program [Domain] Series 6 Series 6 [Member] Series 6 [Member] Series 6 and Series 7 Series 6 and Series 7 [Member] Series 6 and Series 7 [Member] Series 7 Series 7 [Member] Series 7 [Member] Class of Stock [Line Items] Class of Stock [Line Items] Stock Issued During Period, Shares, New Issues Stock Issued During Period, Shares, New Issues Shares Issued, Price Per Share Shares Issued, Price Per Share Preferred Stock, Redemption Date Preferred Stock, Redemption Date Preferred Stock, Dividend Rate, Percentage Preferred Stock, Redemption Price Per Share Preferred Stock, Redemption Price Per Share Preferred Stock, Redemption Value Preferred Stock, Redemption Value Preferred Stock, Redemption Value Preferred Stock, Callable Date Preferred Stock, Callable Date Preferred Stock, Callable Date Preferred Stock, Shares Issued Amount avaiable for issuance Equity Issuances, Amount Available for Issuance Equity Issuances, Amount Available for Issuance Payments for Commissions Payments for Commissions Payments of stock issuance costs Payments of Stock Issuance Costs Liquidation preference Preferred Stock, Liquidation Preference, Value Equity Offering, Common Shares available for issue Forward Equity Offering, Common Shares Authorized for Issuance Forward Equity Offering, Common Shares Authorized for Issuance Sale of Stock, Price Per Share Forward Equity Offering, Agreement Price Per Share, Common Stock Forward Equity Offering, Agreement Price Per Share, Common Stock Equity Offering, Net Proceeds Equity Offering, Net Proceeds Equity Offering, Net Proceeds: Proceeds from entering into an equity offering Weighted Average Price Per Share Weighted Average Price Per Share Weighted Average Price Per Share Limited Partners' Capital Account, Units Outstanding Fixed Rate Unsecured Loans [Member] Fixed Rate Unsecured Loans [Member] Fixed Rate Unsecured Loans [Member] Cash flows from operating activities: Net Cash Provided by (Used in) Operating Activities [Abstract] Adjustments to reconcile net income to net cash provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Depreciation and amortization Depreciation, Depletion and Amortization Amortization of deferred loan cost and debt premium Amortization of Financing Costs and Discounts Amortization and (accretion) of above and below market lease intangibles, net Depreciation, Amortization and Accretion, Net Stock-based compensation, net of capitalization Equity in income of investments in real estate partnerships Gain Loss On Sale Of Properties Including Discontinued Operations Gain (Loss) on Sale of Properties Deferred income tax expense (benefit) of taxable REIT subsidiary Deferred Income Tax Expense (Benefit) Proceeds from Equity Method Investment, Dividends or Distributions Proceeds from Equity Method Investment, Dividends or Distributions (Payments for) Proceeds from Settlement of Derivative Instrument (Payments for) Proceeds from Settlement of Derivative Instrument (Payments for) Proceeds from Settlement of Derivative Instrument Gain on derivative instruments Gain (Loss) on Cash Flow Hedge Ineffectiveness, Net Deferred compensation expense Deferred Compensation Arrangement with Individual, Compensation Expense Net Realized and Unrealized Gain (Loss) on Trading Securities Net Realized and Unrealized Gain (Loss) on Trading Securities Changes in assets and liabilities: Adjustments, Noncash Items, to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Increase (Decrease) in Restricted Cash for Operating Activities Increase (Decrease) in Restricted Cash for Operating Activities Accounts receivable, net Increase (Decrease) in Accounts Receivable Straight-line rent receivable, net Straight Line Rent Deferred leasing costs Increase (Decrease) in Deferred Leasing Fees Other assets Increase (Decrease) in Prepaid Expense and Other Assets Accounts payable and other liabilities Increase (Decrease) in Accounts Payable Tenants’ security and escrow deposits and prepaid rent Increase (Decrease) in Security Deposits Net cash provided by operating activities Net Cash Provided by (Used in) Operating Activities Cash flows from investing activities: Net Cash Provided by (Used in) Investing Activities [Abstract] Acquisition of operating real estate Payments to Acquire Real Estate Payments for (Proceeds from) Deposits on Real Estate Acquisitions Payments for (Proceeds from) Deposits on Real Estate Acquisitions Real estate development and capital improvements Payments to Develop Real Estate Assets Payments for (Proceeds from) Loans Receivable Payments for (Proceeds from) Loans Receivable Investments in real estate partnerships Payments to Acquire Partners Interest in Real Estate Partnership, Net of Cash Acquired Proceeds from Equity Method Investment, Dividends or Distributions, Return of Capital Proceeds from Equity Method Investment, Dividends or Distributions, Return of Capital Payments for (Proceeds from) Other Investing Activities Payments for (Proceeds from) Other Investing Activities Acquisition of securities Payments to Acquire Marketable Securities Proceeds from sale of securities Proceeds from Sale and Maturity of Marketable Securities Net cash used in investing activities Net Cash Provided by (Used in) Investing Activities Cash flows from financing activities: Net Cash Provided by (Used in) Financing Activities [Abstract] Proceeds from Issuance of Common Stock Net proceeds from common units issued as a result of common stock issued by Parent Company Proceeds from sale of treasury stock Proceeds from Sale of Treasury Stock Payments for Repurchase of Common Stock Payments for Repurchase of Common Stock Redemption of preferred stock and partnership units Payments for Repurchase of Preferred Stock and Preference Stock Proceeds from (Payments to) Noncontrolling Interests Proceeds from (Payments to) Noncontrolling Interests Payments of Ordinary Dividends, Noncontrolling Interest Payments of Ordinary Dividends, Noncontrolling Interest Dividends paid to common stockholders Payments of Ordinary Dividends, Common Stock Dividends paid to preferred stockholders Payments of Ordinary Dividends, Preferred Stock and Preference Stock Dividends, Preferred Stock, Cash Repayment of fixed rate unsecured notes Repayments of Unsecured Debt Proceeds from Issuance of Unsecured Debt Proceeds from Issuance of Unsecured Debt Proceeds from unsecured credit facilities Proceeds from Lines of Credit Repayment of unsecured credit facilities Repayments of Lines of Credit Proceeds from notes payable Proceeds from Notes Payable Repayment of notes payable Repayments of Notes Payable Repayments of Secured Debt Repayments of Secured Debt Payment of loan costs Payments of Loan Costs Payments of Debt Extinguishment Costs Payments of Debt Extinguishment Costs Net cash provided by (used in) financing activities Net Cash Provided by (Used in) Financing Activities Net decrease in cash and cash equivalents Cash and Cash Equivalents, Period Increase (Decrease) Cash and cash equivalents at beginning of the period Cash and Cash Equivalents, at Carrying Value Cash and cash equivalents at end of the period Supplemental disclosure of cash flow information: Supplemental Cash Flow Information [Abstract] Cash paid for interest (net of capitalized interest of $000, $6,078, and $3,686 in 2014, 2013, and 2012, respectively) Interest Paid Income Taxes Paid Income Taxes Paid Supplemental disclosure of non-cash transactions: Noncash Investing and Financing Items [Abstract] Mortgage loans assumed through distribution in kind Loans Assumed Stock Issued During Period, Value, Conversion of Units Real estate received through distribution in kind Real estate received through distribution in kind Real estate received through distribution in kind Unrealized Gain (Loss) on Securities Unrealized Gain (Loss) on Securities Real estate contributed for investments in real estate partnerships Real Estate Owned, Transfer from Real Estate Owned Acquisition of previously unconsolidated real estate Acquisition of previously unconsolidated real estate Acquisition of previously unconsolidated real estate Change in fair value of derivative instruments Increase (Decrease) in Derivative Liabilities Contributions from limited partners in consolidated partnerships, net Proceeds from Partnership Contribution Common stock issued for dividend reinvestment in trust Stock Issued During Period, Value, Stock Dividend Stock-based compensation capitalized Stock based compensation capitalized Stock based compensation capitalized Contribution of stock awards into trust Stock deferred into trust Vested Stock deferred into rabbi trust Distribution of stock held in trust Stock distributed out of trust Stock distributed out of rabbi trust Noncash or Part Noncash Acquisition, Other Assets Acquired Noncash or Part Noncash Acquisition, Other Assets Acquired Deconsolidation of consolidated partnership, Real estate, net Deconsolidation of consolidated partnership, Real estate, net Deconsolidation of consolidated partnership, Real estate, net Deconsolidation of consolidated partnership, Return of capital Deconsolidation of consolidated partnership, Return of capital Deconsolidation of consolidated partnership, Return of capital Deconsolidation of consolidated partnership, Mortgage Notes Payable Deconsolidation of consolidated partnership, Mortgage Notes Payable Deconsolidation of consolidated partnership, Mortgage Notes Payable Deconsolidation of consolidated partnership, Other assets and liabilities Deconsolidation of consolidated partnership, Other assets and liabilities Deconsolidation of consolidated partnership, Other assets and liabilities Deconsolidation of consolidated partnership, Noncontrolling Interest Deconsolidation of consolidated partnership, Noncontrolling Interest Deconsolidation of consolidated partnership, Noncontrolling Interest Derivative Instruments, Gain (Loss) by Hedging Relationship, by Income Statement Location, by Derivative Instrument Risk [Table] Derivative Instruments, Gain (Loss) [Table] Swap [Member] Swap [Member] Derivative Instruments, Gain (Loss) [Line Items] Derivative Instruments, Gain (Loss) [Line Items] Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months Derivative Instruments, Gain (Loss) Reclassified from Accumulated OCI into Income, Effective Portion, Net Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net Derivative Instruments, Gain (Loss) Recognized in Income, Ineffective Portion and Amount Excluded from Effectiveness Testing, Net Subsequent Events [Abstract] Subsequent Event [Table] Subsequent Event [Table] Equity One Inc. [Member] Equity One Inc. [Member] Equity One Inc. [Member] Subsequent Event [Line Items] Subsequent Event [Line Items] Number of Board of Directors Number of Board of Directors Number of Board of Directors Repayment of fixed rate unsecured notes Stock Issued During Period, Shares, New Issues Common Stock, Par or Stated Value Per Share Business Acquisition, Share Price Business Acquisition, Share Price Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Table] Disposal Groups, Including Discontinued Operations [Table] BRE Throne Holdings LLC (BRET) [Member] BRE Throne Holdings LLC (BRET) [Member] BRE Throne Holdings LLC (BRET) [Member] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items] Operating Expenses New Accounting Pronouncements or Change in Accounting Principle [Table] New Accounting Pronouncements or Change in Accounting Principle [Table] New Accounting Pronouncements or Change in Accounting Principle [Line Items] New Accounting Pronouncements or Change in Accounting Principle [Line Items] Debt Issuance Cost Debt Issuance Cost Assets Held-in-trust Assets Held-in-trust Deferred Compensation Liability, Current and Noncurrent Deferred Compensation Liability, Current and Noncurrent Statement of Partners' Capital [Abstract] General Partner [Member] Stock Issued During Period, Value, Restricted Stock Award, Net of Forfeitures Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Other Comprehensive Income (Loss), Net of Tax, Portion Attributable to Noncontrolling Interest Deferred Compensation Plan Partners' Capital Account, Contributions Distributions To Partners Partners' Capital Account, Redemptions Stock Issued During Period, Value, New Issues Common units exchanged for common stock of the parent company Preferred Stock Redemption Premium Preferred Stock Redemption Premium Schedule of Finite-Lived Intangible Assets by Major Class [Table] Schedule of Finite-Lived Intangible Assets [Table] Above-market leases, net In-place leases, net Above-market ground leases, net Finite-Lived Intangible Assets [Line Items] Finite-Lived Intangible Assets [Line Items] Acquired lease intangible assets, net of amortization Finite-Lived Intangible Assets, Net Finite Lived Intangible Liabilities, Gross Finite Lived Intangible Liabilities, Gross Finite Lived Intangible Liabilities, Gross Finite-Lived Intangible Assets, Gross Finite-Lived Intangible Assets, Gross Finite-Lived Intangible Liabilities, Accumulated Accretion Finite-Lived Intangible Liabilities, Accumulated Accretion Finite-Lived Intangible Liabilities, Accumulated Accretion Off-market Lease, Unfavorable Off-market Lease, Unfavorable Accumulated amortization Acquired Finite-lived Intangible Asset, Weighted Average Useful Life (in years) Finite-Lived Intangible Assets, Amortization Expense Amortization of Intangible Assets Acquired lease intangible liability accretion Accretion Expense Ground Lease Expiration Date Ground Lease Expiration Date Ground Lease Expiration Date Office Lease Expiration Date Office Lease Expiration Date Office Lease Expiration Date Operating leases expenses Operating Leases, Rent Expense, Net Operating Leases, Future Minimum Payments Due [Abstract] Operating Leases, Future Minimum Payments Due, Fiscal Year Maturity [Abstract] 2017 Operating Leases, Future Minimum Payments Due, Next Twelve Months 2018 Operating Leases, Future Minimum Payments, Due in Two Years 2019 Operating Leases, Future Minimum Payments, Due in Three Years 2020 Operating Leases, Future Minimum Payments, Due in Four Years 2021 Operating Leases, Future Minimum Payments, Due in Five Years Thereafter Operating Leases, Future Minimum Payments, Due Thereafter Total Operating Leases, Future Minimum Payments Due Schedule of Earnings Per Share, Basic and Diluted Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Earnings per Share and Unit Earnings Per Share And Unit [Text Block] This element may be used to capture the complete disclosure pertaining to an entity's earnings per share. Mortgages [Member] Mortgages [Member] Secured Debt [Member] Debt Interest, Type [Axis] Debt Interest, Type [Axis] Debt Interest, Type [Axis] Debt Interest, Type [Domain] Debt Interest, Type [Domain] [Domain] for Debt Interest, Type [Axis] Contractual Rate [Member] Contractual Rate [Member] Contractual Rate [Member] Effective Rate [Member] Effective Rate [Member] Effective Rate [Member] Variable Rate [Axis] Variable Rate [Axis] Variable Rate [Domain] Variable Rate [Domain] London Interbank Offered Rate (LIBOR) [Member] London Interbank Offered Rate (LIBOR) [Member] Credit Facility [Axis] Credit Facility [Axis] Credit Facility [Domain] Credit Facility [Domain] Revolving Credit Facility [Member] Revolving Credit Facility [Member] Period change [Axis] Period change [Axis] Period change [Axis] Period change [Domain] Period change [Domain] [Domain] for Period change [Axis] Fellsway $28.1M, Swap fixed 3.696% [Member] Fellsway $28.1M, Swap fixed 3.696% [Member] Fellsway $28.1M, Swap fixed 3.696% [Member] Blackrock $20M, Swap fixed 2.803% [Member] Blackrock $20M, Swap fixed 2.803% [Member] Blackrock $20M, Swap fixed 2.803% [Member] $350M 3.6% Unsecured Debt Offering [Member] $350M 3.6% Unsecured Debt Offering [Member] $350M 3.6% Unsecured Debt Offering [Member] $300M 4.4% Unsecured Debt Offering [Member] $300M 4.4% Unsecured Debt Offering [Member] $300M 4.4% Unsecured Debt Offering [Member] Scheduled Principal Payments [Member] Scheduled Principal Payments [Member] Mortgage Loan Maturities [Member] Mortgage Loan Maturities [Member] Debt Instrument, Maturity Date Range, End Debt Instrument, Maturity Date Range, End Long-term Debt Long-term Debt Line of Credit Facility, Maximum Borrowing Capacity Secured Debt, Percent Guaranteed by Parent Company Debt Instrument, Maturity Date Debt Instrument, Maturity Date Debt Instrument, Redemption Price, Percentage Debt Instrument, Redemption Price, Percentage Line of Credit Facility, Interest Rate Description Line of Credit Facility, Maximum Increase Allowed to Borrowing Capacity Line of Credit Facility, Maximum Increase Allowed to Borrowing Capacity Line of Credit Facility, Maximum Increase Allowed to Borrowing Capacity Long-term Debt Future Debt Repayment of Equity One Inc. Future Debt Repayment of Equity One Inc. Long-term Line of Credit Long-term Line of Credit Maturities of Long-term Debt [Abstract] 2017 2018 2019 2020 Long-term Debt, Maturities, Repayments of Principal in Year Four 2021 Long-term Debt, Maturities, Repayments of Principal in Year Five Beyond 5 Years Long-term Debt, Maturities, Repayments of Principal after Year Five Unamortized debt discounts (premiums) Debt Instrument, Unamortized Discount (Premium), Net Line of Credit Facility, Remaining Borrowing Capacity Line of Credit Facility, Remaining Borrowing Capacity Unsecured credit facilities - maximum borrowing capacity Unsecured credit facilities - maximum borrowing capacity Unsecured credit facilities - maximum borrowing capacity Debt Instrument, Unused Borrowing Capacity, Amount Debt Instrument, Unused Borrowing Capacity, Amount Line of Credit Facility, Annual Fee Description Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum Debt Instrument, Interest Rate, Stated Percentage Rate Range, Minimum Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum Debt Instrument, Interest Rate, Stated Percentage Rate Range, Maximum Debt, Weighted Average Interest Rate Debt, Weighted Average Interest Rate Line of Credit Facility, Interest Rate at Period End Line of Credit Facility, Interest Rate at Period End Schedule of Quarterly Financial Information [Table Text Block] Schedule of Quarterly Financial Information [Table Text Block] Equity and Capital Stockholders' Equity Note Disclosure [Text Block] Fair Value Measurements Fair Value Disclosures [Text Block] Schedule of Finite-Lived Intangible Assets Acquired as Part of Business Combination [Table Text Block] Schedule of Finite-Lived Intangible Assets Acquired as Part of Business Combination [Table Text Block] Schedule of weighted average amortization period of acquired intangible assets and liabilities [Table Text Block] Schedule of Acquired Finite-Lived Intangible Assets by Major Class [Table Text Block] Business Acquisition, Pro Forma Information [Table Text Block] Business Acquisition, Pro Forma Information [Table Text Block] Unconsolidated Investments in Partnership [Member] Unconsolidated Investments in Partnership [Member] Unconsolidated Investments in Partnership [Member] Unconsolidated Investments in Partnership, Pro-Rata Share [Member] [Member] Unconsolidated Investments in Partnership, Pro-Rata Share [Member] [Member] Unconsolidated Investments in Partnership, Pro-Rata Share [Member] [Member] Scheduled Principal Payments [Member] Mortgage Loan Maturities [Member] Notes payable (note 6) Long-term Debt Investment, Name [Axis] Columbia Regency Retail Partners, LLC [Member] Columbia Regency Retail Partners, LLC [Member] Columbia Regency Retail Partners, LLC [Member] Cameron Village, LLC [Member] Cameron Village, LLC [Member] Cameron Village, LLC [Member] US Regency Retail 1, LLC [Member] US Regency Retail 1, LLC [Member] US Regency Retail I, LLC [Member] Ownership Percentage Real Estate Partnerships, Number of Properties Real Estate Partnerships, Number of Properties Real Estate Partnerships, Number of Properties Total Assets of the Partnership Equity Method Investment, Summarized Financial Information, Assets Net Income (Loss) of the Partnership Income (Loss) from Equity Method Investments Finite-lived Intangible Assets Acquired Capital - Regency Equity Method Investment, Summarized Financial Information, Noncontrolling Interest less: Impairment of investment in real estate partnerships Impairment Losses Related to Real Estate Partnerships less: Ownership percentage or Restricted Gain Method deferral Equity Method Investment, Difference Between Carrying Amount and Underlying Equity less: Net book equity in excess of purchase price Equity Method Summarized Financial Information, Net Book Equity in Excess of Purchase Price Equity Method Summarized Financial Information, Net Book Equity in Excess of Purchase Price Schedule of Property, Plant and Equipment [Table] Property, Plant and Equipment [Table] Refundable deposits - development Refundable deposits - development [Member] Refundable deposits - development [Member] Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Development in Process Development in Process Real Estate and Accumulated Depreciation, Costs Capitalized Subsequent to Acquisition, Carrying Costs Other Cost and Expense, Operating Other Cost and Expense, Operating Impairment of Real Estate Impairment Losses Related to Real Estate Partnerships Schedule of Defined Benefit Plans Disclosures [Table] Schedule of Defined Benefit Plans Disclosures [Table] Defined Benefit Plans and Other Postretirement Benefit Plans [Axis] Defined Benefit Plans and Other Postretirement Benefit Plans [Axis] Defined Benefit Plans and Other Postretirement Benefit Plans [Domain] Defined Benefit Plan and Other Postretirement Benefit Plan [Domain] Defined Benefit Plan Disclosure [Line Items] Defined Benefit Plan Disclosure [Line Items] Defined Contribution Plan, Maximum Annual Contribution Per Employee, Amount Defined Contribution Plan, Employer Discretionary Contribution Amount Profit Sharing Contribution, Vesting Period Profit Sharing Contribution, Vesting Period Profit Sharing Contribution, Vesting Period Defined Contribution Plan, Cost Recognized Defined Contribution Plan, Cost Recognized Noncontrolling Interest of Limited Partners (details) [Abstract] Noncontrolling Interest of Limited Partners (details) [Abstract] Schedule of Limited Partners' Capital Account by Class [Table] Schedule of Limited Partners' Capital Account by Class [Table] Limited Partners' Capital Account by Class [Axis] Limited Partners' Capital Account by Class [Axis] Limited Partners' Capital Account, Class [Domain] Limited Partners' Capital Account, Class [Domain] Limited Partners' Capital Account [Line Items] Limited Partners' Capital Account [Line Items] Preferred Stock, Liquidation Preference, Value Distributions Paid To Preferred Unit Holders Noncontrolling Interest in Operating Partnerships Noncontrolling Interest in Operating Partnerships Investment in real estate, net Equity Method Investment, Summarized Financial Information, Investment in Real Estate, Net Equity Method Investment, Summarized Financial Information, Investment in Real Estate, Net Acquired lease intangible assets, net Equity Method Investment, Summarized Financial Information, Acquired Lease Intangible Assets, Net Equity Method Investment, Summarized Financial Information, Acquired Lease Intangible Assets, Net Other assets Equity Method Investment, Summarized Financial Information, Other Assets Equity Method Investment, Summarized Financial Information, Other Assets Total assets Notes payable Equity Method Investment, Summarized Financial Information, Notes Payable Equity Method Investment, Summarized Financial Information, Notes Payable Acquired lease intangible liabilities, net Equity Method Investment, Summarized Financial Information, Acquired Lease Intangible Liabilities, Net Equity Method Investment, Summarized Financial Information, Acquired Lease Intangible Liabilities, Net Other liabilities Equity Method Investment, Summarized Financial Information, Other Liabilities Equity Method Investment, Summarized Financial Information, Other Liabilities Capital - Third parties Equity Method Investment, Summarized Financial Information, Equity Excluding Noncontrolling Interests Total liabilities and capital Equity Method Investment, Summarized Financial Information, Liabilities and Equity Equity Method Investment, Difference Between Carrying Amount and Underlying Equity Equity Method Summarized Financial Information, Net Book Equity in Excess of Purchase Price Assets Assets [Abstract] Real estate investments at cost (notes 1, 2 and 3): Real Estate Investment Property, at Cost [Abstract] Land Land Buildings and improvements Investment Building and Building Improvements Properties in development Gross real estate investments at cost Real Estate Investment Property, at Cost Less: accumulated depreciation Real Estate Investment Property, Accumulated Depreciation Total Cost Net of Accumulated Depreciation Real Estate Investment Property, Net Net real estate investments Real Estate Investments, Net Cash and cash equivalents Restricted cash Accounts and Notes Receivable, Net Accounts and Notes Receivable, Net Deferred Costs Deferred Costs Acquired lease intangible assets, less accumulated amortization of $56,695 and $45,639 at December 31, 2016 and 2015, respectively (note 5) Other assets Other Assets Total assets Assets Liabilities and Equity Liabilities and Equity [Abstract] Liabilities: Liabilities [Abstract] Unsecured Debt Accounts payable and other liabilities Accounts Payable and Accrued Liabilities Derivative instruments, at fair value (note 9) Acquired lease intangible liabilities, less accumulated amortization of $23,538 and $17,555 at December 31, 2016 and 2015, respectively (note 5) Tenants’ security and escrow deposits and prepaid rent Security Deposit Liability Total liabilities Liabilities Commitments and contingencies (notes 13 and 14) Commitments and Contingencies Equity: Equity [Abstract] Stockholders’ equity (note 9): Stockholders' Equity Attributable to Parent [Abstract] Preferred stock, $0.01 par value per share, 30,000,000 shares authorized; 13,000,000 Series 6 and 7 shares issued and outstanding at December 31, 2013 and December 31, 2012, with liquidation preferences of $25 per share Preferred Stock, Value, Issued Preferred Units General Partner Preferred Units General Partner Capital contributed by general partners. General partner; 104,497,286 and 97,212,638 units outstanding at December 31, 2016 and 2015, respectively General Partners' Capital Account Limited Partners' Capital Account Limited Partners' Capital Account Common stock $0.01 par value per share,150,000,000 shares authorized; 104,497,286 and 97,212,638 shares issued at December 31, 2016 and 2015, respectively Common Stock, Value, Issued Treasury Stock, Value Treasury Stock, Value Additional paid in capital Additional Paid in Capital Accumulated other comprehensive loss Distributions in excess of net income Accumulated Distributions in Excess of Net Income Total stockholders’ equity Stockholders' Equity Attributable to Parent Total partners’ capital Partners' Capital Noncontrolling interests (note 9): Stockholders' Equity Attributable to Noncontrolling Interest [Abstract] Limited partners’ interests in consolidated partnerships Noncontrolling Interest in Limited Partnerships Total noncontrolling interests Stockholders' Equity Attributable to Noncontrolling Interest Total equity Total liabilities and equity Liabilities and Equity Discontinued Operations Disposal Groups, Including Discontinued Operations, Disclosure [Text Block] Subsequent Events [Text Block] Subsequent Events [Text Block] Schedule of Extinguishment of Debt [Table] Forward Equity Offering [Member] Forward Equity Offering [Member] Forward Equity Offering [Member] Extinguishment of Debt [Line Items] Extinguishment of Debt [Line Items] Forward Equity Offering, Common Shares available for issue Forward Equity Offering, Common Shares available for issue Forward Equity Offering, Common Shares available for issue Real Estate Disclosure [Text Block] Real Estate Disclosure [Text Block] Real Estate Investments Business Combination Disclosure [Text Block] Fair Value Inputs, Assets, Quantitative Information [Table] Fair Value Inputs, Assets, Quantitative Information [Table] Fair Value Inputs, Assets, Quantitative Information [Line Items] Fair Value Inputs, Assets, Quantitative Information [Line Items] Marketable Securities, Trading Securities, Policy [Policy Text Block] Marketable Securities, Trading Securities, Policy [Policy Text Block] Estimates, Risks and Uncertainties Use of Estimates, Policy [Policy Text Block] Consolidation Consolidation, Policy [Policy Text Block] Investments in Real Estate Partnerships Consolidation, Subsidiaries or Other Investments, Consolidated Entities, Policy [Policy Text Block] Revenues Revenue Recognition, Policy [Policy Text Block] Real Estate Investments Real Estate, Policy [Policy Text Block] Cash and Cash Equivalents Cash and Cash Equivalents, Policy [Policy Text Block] Deferred Costs Deferred Charges, Policy [Policy Text Block] Derivative Financial Instruments Derivatives, Policy [Policy Text Block] Income Taxes Income Tax, Policy [Policy Text Block] Earnings per Share and Unit Earnings Per Share, Policy [Policy Text Block] Stock-Based Compensation Share-based Compensation, Option and Incentive Plans Policy [Policy Text Block] Segment Reporting Segment Reporting, Policy [Policy Text Block] Assets and Liabilities Measured at Fair Value Fair Value of Financial Instruments, Policy [Policy Text Block] Recent Accounting Pronouncements Reclassifications [Text Block] Reclassifications [Text Block] Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Schedule of Share-based Payment Award, Stock Options, Valuation Assumptions [Table Text Block] Disclosure of Share-based Compensation Arrangements by Share-based Payment Award Disclosure of Share-based Compensation Arrangements by Share-based Payment Award [Table Text Block] Schedule of Share-based Compensation, Stock Options, Activity Schedule of Share-based Compensation, Stock Options, Activity [Table Text Block] Schedule of Nonvested Share Activity Schedule of Nonvested Share Activity [Table Text Block] Derivative [Table] Derivative [Table] Derivative Instrument [Axis] Derivative Instrument [Axis] Derivative Contract [Domain] Derivative Contract [Domain] 2017 Debt issuance [Member] 2017 Debt issuance [Member] 2017 Debt issuance [Member] Derivative [Member] Derivative [Member] Derivative [Line Items] Derivative [Line Items] Loss on Discontinuation of Cash Flow Hedge Due to Forecasted Transaction Probable of Not Occurring Loss on Discontinuation of Cash Flow Hedge Due to Forecasted Transaction Probable of Not Occurring Derivative, weighted average fixed interest rate Derivative, weighted average fixed interest rate Derivative, weighted average fixed interest rate Document and Entity Information [Abstract] Document and Entity Information [Abstract] Entities [Table] Entity Information [Line Items] Entity Information [Line Items] Document Type Document Type Amendment Flag Amendment Flag Document Period End Date Document Period End Date Document Fiscal Period Focus Document Fiscal Period Focus Entity Registrant Name Entity Registrant Name Entity Central Index Key Entity Central Index Key Entity well-known seasoned filer Entity Well-known Seasoned Issuer Entity voluntary filer Entity Voluntary Filers Entity Current Reporting Status Entity Current Reporting Status Entity Filer Category Entity Filer Category Entity Common Stock Shares Outstanding Entity Common Stock, Shares Outstanding Public Float Entity Public Float