Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Net income	$ 173,741	$ 115,899	$ 226,510	$ 229,722
Other comprehensive (loss) income:
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	(26,220)	3,977	(47,105)	14,890
Increase (decrease) in unrealized value of marketable securities	572	318	1,341	(8)
Other comprehensive (loss) income	(25,648)	4,295	(45,764)	14,882
Comprehensive income	148,093	120,194	180,746	244,604
Net income attributable to noncontrolling interests and preferred units distributions	(8,901)	(8,606)	(14,140)	(16,925)
Net income attributable to noncontrolling interests	2,138	(173)	1,900	(371)
Other comprehensive loss (income) attributable to noncontrolling interests	1,258	(245)	2,261	(864)
Comprehensive income attributable to SL Green/SLGOP	140,450	111,343	168,867	226,815
SL Green Operating Partnership
Net income	173,741	115,899	226,510	229,722
Other comprehensive (loss) income:
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	(26,220)	3,977	(47,105)	14,890
Increase (decrease) in unrealized value of marketable securities	572	318	1,341	(8)
Other comprehensive (loss) income	(25,648)	4,295	(45,764)	14,882
Comprehensive income	148,093	120,194	180,746	244,604
Net income attributable to noncontrolling interests	2,138	(173)	1,900	(371)
Other comprehensive loss (income) attributable to noncontrolling interests	1,258	(245)	2,261	(864)
Comprehensive income attributable to SL Green/SLGOP	$ 151,489	$ 119,776	$ 184,907	$ 243,369