Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2016	Jun. 30, 2015
Net income (loss)	$ 149,095	$ (29,179)	$ 181,598	$ 26,457
Other comprehensive income (loss):
Change in net unrealized gain (loss) on derivative instruments, including SL Green's/SLGOP's share of joint venture net unrealized (loss) gain on derivative instruments	257	2,250	(7,315)	(3,430)
Change in unrealized gain (loss) on marketable securities	354	(1,304)	(869)	(654)
Other comprehensive income (loss)	611	946	(8,184)	(4,084)
Comprehensive income (loss)	149,706	(28,233)	173,414	22,373
Net income (loss) attributable to noncontrolling interests and preferred units distributions	(11,901)	(6,189)	(17,445)	(14,810)
Other comprehensive income (loss) attributable to noncontrolling interests	53	(42)	375	158
Comprehensive income attributable to SL Green/SLGOP	137,858	(34,464)	156,344	7,721
SL Green Operating Partnership
Net income (loss)	149,095	(29,179)	181,598	26,457
Other comprehensive income (loss):
Change in net unrealized gain (loss) on derivative instruments, including SL Green's/SLGOP's share of joint venture net unrealized (loss) gain on derivative instruments	257	2,250	(7,315)	(3,430)
Change in unrealized gain (loss) on marketable securities	354	(1,304)	(869)	(654)
Other comprehensive income (loss)	611	946	(8,184)	(4,084)
Comprehensive income (loss)	149,706	(28,233)	173,414	22,373
Net income (loss) attributable to noncontrolling interests and preferred units distributions	(3,435)	(6,626)	(5,409)	(12,553)
Other comprehensive income (loss) attributable to noncontrolling interests	53	(42)	375	158
Comprehensive income attributable to SL Green/SLGOP	$ 146,324	$ (34,901)	$ 168,380	$ 9,978