Consolidated Statements of Income (USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Revenues
Rental revenue, net	$ 270,489	$ 260,762
Escalation and reimbursement	41,000	41,656
Investment and preferred equity income	52,708	26,338
Other income	5,774	10,377
Total revenues	369,971	339,133
Expenses
Operating expenses, including approximately $4,150 (2013) and $3,471 (2012) paid to related parties	73,633	73,254
Real estate taxes	53,688	51,480
Ground rent	10,990	8,806
Interest expense, net of interest income	81,336	80,137
Amortization of deferred financing costs	4,463	3,580
Depreciation and amortization	80,683	77,069
Loan loss and other investment reserves, net of recoveries		564
Transaction related costs	1,358	1,056
Marketing, general and administrative	21,067	20,196
Total expenses	327,218	316,142
Income from continuing operations before equity in net income (loss) from unconsolidated joint ventures, equity in net gain on sale of interest in unconsolidated joint venture/real estate, noncontrolling interests and discontinued operations	42,753	22,991
Equity in net income (loss) from unconsolidated joint ventures	5,073	(1,560)
Equity in net gain on sale of interest in unconsolidated joint venture/real estate		7,260
Loss on sale of investment in marketable securities	(57)
Loss on early extinguishment of debt	(18,513)
Income from continuing operations	29,256	28,691
Net loss from discontinued operations	(32)	(161)
Gain on sale of discontinued operations	1,113	6,627
Net income	30,337	35,157
Net income attributable to noncontrolling interests:
Noncontrolling interests in the Operating Partnership	(555)	(888)
Noncontrolling interests in other partnerships	(2,901)	(1,071)
Preferred unit distributions	(565)	(397)
Net income attributable to SL Green	26,316	32,801
Perpetual preferred stock dividends	(7,407)	(7,545)
Net income attributable to SL Green common stockholders	18,909	25,256
Amounts attributable to SL Green common stockholders:
Income from continuing operations	17,859	11,997
Equity in net gain on sale of interest in unconsolidated joint venture/real estate		7,014
Net loss from discontinued operations	(31)	(157)
Gain on sale of discontinued operations	1,081	6,402
Net income attributable to SL Green common stockholders	$ 18,909	$ 25,256
Basic earnings per share:
Net income from continuing operations before discontinued operations (in dollars per share)	$ 0.20	$ 0.14
Equity in net gain on sale of interest in unconsolidated joint venture/real estate (in dollars per share)		$ 0.08
Gain on sale of discontinued operations (in dollars per share)	$ 0.01	$ 0.07
Net income attributable to SL Green common stockholders (in dollars per share)	$ 0.21	$ 0.29
Diluted earnings per share:
Net income from continuing operations before discontinued operations (in dollars per share)	$ 0.20	$ 0.14
Equity in net gain on sale of interest in unconsolidated joint venture/real estate (in dollars per share)		$ 0.08
Gain on sale of discontinued operations (in dollars per share)	$ 0.01	$ 0.07
Net income attributable to SL Green common stockholders (in dollars per share)	$ 0.21	$ 0.29
Dividends per share (in dollars per share)	$ 0.33	$ 0.25
Basic weighted average common shares outstanding (in shares)	91,399	86,744
Diluted weighted average common shares and common share equivalents outstanding (in shares)	94,302	90,173