Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Net income	$ 40,722	$ 99,454	$ 267,232	$ 329,176
Other comprehensive (loss) income:
(Decrease) increase in unrealized value of derivative instruments, including SL Green's share of joint venture derivative instruments	(12,574)	3,919	(59,680)	18,809
Increase (decrease) in unrealized value of marketable securities	230	(32)	1,571	(39)
Other comprehensive (loss) income	(12,344)	3,887	(58,109)	18,770
Comprehensive income	28,378	103,341	209,123	347,946
Net income attributable to noncontrolling interests and preferred units distributions	(3,827)	(7,507)	(17,967)	(24,432)
Net loss (income) attributable to noncontrolling interests	624	136	2,524	(234)
Other comprehensive loss (income) attributable to noncontrolling interests	607	(210)	2,869	(1,075)
Comprehensive income attributable to SL Green/SLGOP	25,158	95,624	194,025	322,439
SL Green Operating Partnership
Net income	40,722	99,454	267,232	329,176
Other comprehensive (loss) income:
(Decrease) increase in unrealized value of derivative instruments, including SL Green's share of joint venture derivative instruments	(12,574)	3,919	(59,680)	18,809
Increase (decrease) in unrealized value of marketable securities	230	(32)	1,571	(39)
Other comprehensive (loss) income	(12,344)	3,887	(58,109)	18,770
Comprehensive income	28,378	103,341	209,123	347,946
Net loss (income) attributable to noncontrolling interests	624	136	2,524	(234)
Other comprehensive loss (income) attributable to noncontrolling interests	607	(210)	2,869	(1,075)
Comprehensive income attributable to SL Green/SLGOP	$ 29,609	$ 103,267	$ 214,516	$ 346,637