2.4.0.8143 - Disclosure - Acquisitions (Details Textual)truefalseIn Thousands, unless otherwise specifiedfalse1false USDfalsefalse$P04_01_2013To06_30_2013http://www.sec.gov/CIK0001287701duration2013-04-01T00:00:002013-06-30T00:00:00USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170sqftStandardhttp://www.xbrl.org/2009/utrsqftutr0pureStandardhttp://www.xbrl.org/2003/instancepurexbrli0USDUSD$2false USDfalsefalse$P04_01_2012To06_30_2012http://www.sec.gov/CIK0001287701duration2012-04-01T00:00:002012-06-30T00:00:00USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$3false USDfalsefalse$P01_01_2013To06_30_2013http://www.sec.gov/CIK0001287701duration2013-01-01T00:00:002013-06-30T00:00:00USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170sqftStandardhttp://www.xbrl.org/2009/utrsqftutr0pureStandardhttp://www.xbrl.org/2003/instancepurexbrli0USDUSD$4false USDfalsefalse$P01_01_2012To06_30_2012http://www.sec.gov/CIK0001287701duration2012-01-01T00:00:002012-06-30T00:00:00USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$5false USDfalsefalse$PAsOn03_31_2013http://www.sec.gov/CIK0001287701instant2013-03-31T00:00:000001-01-01T00:00:00USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$1false 4us-gaap_AreaOfLandus-gaap_truenainstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse16000001600000falsefalsefalse2falsefalsefalse00falsefalsefalse3truefalsefalse16000001600000falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalsenum:areaItemTypedecimalArea of land held.No definition available.false256Business Acquisition Area of Land2false 4gkk_PercentageOfLandLeasedgkk_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truetruefalse11falsefalsefalse2falsefalsefalse00falsefalsefalse3truetruefalse11falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalsenum:percentItemTypepureIt represents the percentage of land leased during period.No definition available.false0Percentage Of Land Leased3false 4gkk_BusinessAcquistionRealEstateAssetsgkk_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse9720000097200USD$falsetruefalse2falsefalsefalse00falsefalsefalse3truefalsefalse9720000097200USD$falsetruefalse4falsefalsefalse00falsefalsefalse5truefalsefalse5027200050272USD$falsetruefalsexbrli:monetaryItemTypemonetaryAmount of acquisition cost of a business combination allocated to buildings and land included in real estate.No definition available.false2Business Acquistion Real Estate Assets4false 4us-gaap_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedIntangiblesus-gaap_truedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5truefalsefalse97300009730USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThe amount of identifiable intangible assets recognized as of the acquisition date.Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6910749&loc=d3e4845-128472 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 55 -Paragraph 37 -URI http://asc.fasb.org/extlink&oid=25498275&loc=d3e2207-128464 false2Business Acquisition, Purchase Price Allocation, Amortizable Intangible Assets5false 4gkk_BusinessAcquistionPurchasePriceAllocationIntangibleLiabilitiesgkk_falsecreditinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5truefalsefalse36790003679USD$falsefalsefalsexbrli:monetaryItemTypemonetaryThe amount of acquisition cost of a business combination allocated to intangible liabilities of the acquired entity.No definition available.false2Business Acquistion Purchase Price Allocation Intangible Liabilities6false 4gkk_Businessacquistionpurchasepricereallocationintangibleassetsandliabilitiesgkk_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse42070004207USD$falsefalsefalse2falsefalsefalse00falsefalsefalse3truefalsefalse42070004207USD$falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryThe amount of acquisition cost of a business combination reallocated to intangible assets and liabilities of the acquired entity.No definition available.false2Business Acquistion Purchase Price Reallocation Intangible Assets And Liabilities7false 4gkk_revenueTowardsAcquisitiongkk_falsecreditdurationfalsefalsefalsefalsefalsefalsefalsefalselabel1truefalsefalse13420001342USD$falsefalsefalse2falsefalsefalse00falsefalsefalse3truefalsefalse14570001457USD$falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryRepresents the revenue recorded related to acquisition during the reporting period.No definition available.false2Revenue Towards Acquisition8false 4gkk_NetIncomeTowardsAcquisitiongkk_falsecreditdurationfalsefalsefalsefalsefalsefalsefalsefalselabel1falsefalsefalse00falsefalsefalse2truefalsefalse495000495USD$falsefalsefalse3falsefalsefalse00falsefalsefalse4truefalsefalse581000581USD$falsefalsefalse5falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryRepresents the net income recorded related to acquisition during the reporting period.No definition available.false2Net Income Towards Acquisition9false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse6false USDtruefalse$PAsOn06_30_2013_HutchinsTexasMemberusgaapInvestmentTypeAxishttp://www.sec.gov/CIK0001287701instant2013-06-30T00:00:000001-01-01T00:00:00falsefalseHutchins, Texas [Member]us-gaap_InvestmentTypeAxisxbrldihttp://xbrl.org/2006/xbrldigkk_HutchinsTexasMemberus-gaap_InvestmentTypeAxisexplicitMemberUSDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse0Hutchins, Texas [Member]10false 4gkk_BusinessAcquistionRealEstateAssetsgkk_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse2632200026322USD$falsefalsefalse2falsefalsefalse00falsefalsefalse3truefalsefalse2632200026322USD$falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryAmount of acquisition cost of a business combination allocated to buildings and land included in real estate.No definition available.false2Business Acquistion Real Estate Assets11false 4gkk_Businessacquistionrealestateassetsfairvaluegkk_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse2938500029385USD$falsefalsefalse2falsefalsefalse00falsefalsefalse3truefalsefalse2938500029385USD$falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryRepresents the fair value of real estate property.No definition available.false2Business Acquistion Real Estate Assets Fair Value12false 4gkk_CapitalizedLoanAssumptionCostsgkk_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalselabel1truefalsefalse263000263USD$falsefalsefalse2falsefalsefalse00falsefalsefalse3truefalsefalse263000263USD$falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryRepresents the capitalized loan assumption costs related to real estate property assets.No definition available.false2Capitalized Loan Assumption Costs13false 0truefalsetruefalsefalsefalsefalsefalsefalse1falsefalsefalse00falsefalsefalse2falsefalsefalse00falsefalsefalse3falsefalsefalse00falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalse7false USDtruefalse$PAsOn06_30_2013_BuildToSuitPropertyMemberusgaapInvestmentTypeAxishttp://www.sec.gov/CIK0001287701instant2013-06-30T00:00:000001-01-01T00:00:00falsefalseBuild to suit property [Member]us-gaap_InvestmentTypeAxisxbrldihttp://xbrl.org/2006/xbrldigkk_BuildToSuitPropertyMemberus-gaap_InvestmentTypeAxisexplicitMembersqftStandardhttp://www.xbrl.org/2009/utrsqftutr0pureStandardhttp://www.xbrl.org/2003/instancepurexbrli0USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$nanafalse0Build to suit property [Member]14false 4us-gaap_AreaOfLandus-gaap_truenainstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse120000120000falsefalsefalse2falsefalsefalse00falsefalsefalse3truefalsefalse120000120000falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalsenum:areaItemTypedecimalArea of land held.No definition available.false256Business Acquisition Area of Land15false 4gkk_PercentageOfLandLeasedgkk_falsenainstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truetruefalse11falsefalsefalse2falsefalsefalse00falsefalsefalse3truetruefalse11falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalsenum:percentItemTypepureIt represents the percentage of land leased during period.No definition available.false0Percentage Of Land Leased16false 4gkk_MortgageNotePayablegkk_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalselabel1truefalsefalse49900004990USD$falsefalsefalse2falsefalsefalse00falsefalsefalse3truefalsefalse49900004990USD$falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryRepresents the issue of zero coupon mortgage note payable for the purpose of land acquisition.No definition available.false2Mortgage Note Payable17false 4gkk_Acquisitioncostsoflandgkk_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse2500000025000USD$falsefalsefalse2falsefalsefalse00falsefalsefalse3truefalsefalse2500000025000USD$falsefalsefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryRepresents the expected cost of land acquired.No definition available.false2Acquisition Costs Of Land18false 4gkk_UnfundedAmountTowardsLandCostgkk_falsedebitinstantfalsefalsefalsefalsefalsefalsefalsefalselabel1truefalsefalse2315800023158USD$falsetruefalse2falsefalsefalse00falsefalsefalse3truefalsefalse2315800023158USD$falsetruefalse4falsefalsefalse00falsefalsefalse5falsefalsefalse00falsefalsefalsexbrli:monetaryItemTypemonetaryRepresents the estimated unfunded amount towards land acquisition.No definition available.false2Unfunded Amount Towards Land CostfalseAcquisitions (Details Textual) (USD $)ThousandsUnKnownUnKnownUnKnowntruefalsefalseSheethttp://www.gramercycapitalcorp.com/role/AcquisitionsDetailsTextual518