Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Net income	$ 113,823	$ 924
Other comprehensive income (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	10,913	(1,075)
Change in unrealized gain on marketable securities	(325)	(4,750)
Other comprehensive income (loss)	10,588	(5,825)
Comprehensive income (loss)	124,411	(4,901)
Net (income) loss attributable to noncontrolling interests and preferred units distributions	(8,319)	17,491
Net (loss) income attributable to noncontrolling interests	(198)	17,491
Other comprehensive (loss) income attributable to noncontrolling interests	(619)	199
Comprehensive income attributable to SL Green/SLGOP	115,473	12,789
SL Green Operating Partnership
Net income	113,823	924
Other comprehensive income (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	10,913	(1,075)
Change in unrealized gain on marketable securities	(325)	(4,750)
Other comprehensive income (loss)	10,588	(5,825)
Comprehensive income (loss)	124,411	(4,901)
Net (loss) income attributable to noncontrolling interests	(198)	17,491
Other comprehensive (loss) income attributable to noncontrolling interests	(619)	199
Comprehensive income attributable to SL Green/SLGOP	$ 123,594	$ 12,789