Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Net income	$ 45,795	$ 43,343	$ 62,734	$ 224,941
Other comprehensive loss:
Change in net unrealized gain on derivative instruments, including SL Green's/SLGOP's share of joint venture net unrealized (loss) gain on derivative instruments	(217)	2,632	(3,812)	(4,682)
Change in unrealized gain on marketable securities	44	(30)	(4,443)	(900)
Other comprehensive (loss) income	(173)	2,602	(8,255)	(5,582)
Comprehensive income	45,622	45,945	54,479	219,359
Net (income) loss attributable to noncontrolling interests and preferred units distributions	(3,188)	(5,353)	6,921	(22,798)
Net loss (income) attributable to noncontrolling interests	1,474	(836)	18,179	(6,245)
Other comprehensive loss attributable to noncontrolling interests	4	(118)	303	257
Comprehensive income attributable to SL Green/SLGOP	42,438	40,474	61,703	196,818
SL Green Operating Partnership
Net income	45,795	43,343	62,734	224,941
Other comprehensive loss:
Change in net unrealized gain on derivative instruments, including SL Green's/SLGOP's share of joint venture net unrealized (loss) gain on derivative instruments	(217)	2,632	(3,812)	(4,682)
Change in unrealized gain on marketable securities	44	(30)	(4,443)	(900)
Other comprehensive (loss) income	(173)	2,602	(8,255)	(5,582)
Comprehensive income	45,622	45,945	54,479	219,359
Net loss (income) attributable to noncontrolling interests	1,474	(836)	18,179	(6,245)
Other comprehensive loss attributable to noncontrolling interests	4	(118)	303	257
Comprehensive income attributable to SL Green/SLGOP	$ 47,100	$ 44,991	$ 72,961	$ 213,371