2.4.0.8158 - Disclosure - Fair Value of Financial Instruments (Details Textual)truefalseIn Thousands, unless otherwise specifiedfalse1false USDfalsefalse$P01_01_2013To03_15_2013http://www.sec.gov/CIK0001287701duration2013-01-01T00:00:002013-03-15T00:00:00USDStandardhttp://www.xbrl.org/2003/iso4217USDiso42170USDUSD$1false 4us-gaap_OtherComprehensiveIncomeLossDerivativesQualifyingAsHedgesBeforeTaxus-gaap_truecreditdurationfalsefalsefalsefalsefalsefalsefalsefalseverboseLabel1truefalsefalse1010000010100USD$falsetruefalsexbrli:monetaryItemTypemonetaryAmount before tax, after reclassification adjustments, of increase (decrease) in accumulated gain (loss) from derivative instruments designated and qualifying as the effective portion of cash flow hedges and an entity's share of an equity investee's increase (decrease) in deferred hedging gain (loss).Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 10A -Subparagraph (d) -URI http://asc.fasb.org/extlink&oid=28358780&loc=SL7669646-108580 false2Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, before TaxfalseFair Value of Financial Instruments (Details Textual) (USD $)ThousandsUnKnownUnKnownUnKnowntruefalsefalseSheethttp://www.gramercycapitalcorp.com/role/FairValueOfFinancialInstrumentsDetailsTextual11