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Consolidated Statements of Comprehensive Income (Loss) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Statement of Other Comprehensive Income [Abstract]
Net income (loss)	$ (241,430)	$ (25,693)	$ 80,206
Other comprehensive income (loss):
Reclassification of (gains)/losses on available-for-sale securities into earnings upon realization	0	0	(4,206)
Reclassification of (gains)/losses on cash flow hedges into earnings upon realization	44	180	799
Unrealized gains/(losses) on available-for-sale securities	278	391	445
Unrealized gains/(losses) on cash flow hedges	(1,335)	(1,191)	0
Unrealized gains/(losses) on cumulative translation adjustment	244	(957)	24
Other comprehensive income (loss)	(857)	(1,937)	(4,536)
Comprehensive income (loss)	(242,287)	(27,630)	75,670
Net (income) loss attributable to noncontrolling interests	1,500	3,629	(523)
Comprehensive income (loss) attributable to iStar Financial Inc.	$ (240,787)	$ (24,001)	$ 75,147

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Amount after tax of reclassification adjustment from accumulated other comprehensive income for unrealized gain (loss) realized upon the sale of available-for-sale securities.

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