Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Net income	$ 480,632	$ 414,758	$ 291,487
Other comprehensive loss:
Increase (decrease) in unrealized value of derivative instruments, including SLGOP's share of joint venture derivative instruments	21,427	(39,743)	(47,118)
Increase (decrease) in unrealized value of marketable securities	104	(1,318)	1,249
Other comprehensive income (loss)	21,531	(41,061)	(45,869)
Comprehensive income	502,163	373,697	245,618
Net loss (income) attributable to noncontrolling interests	1,884	(14,940)	3,159
Other comprehensive (income) loss attributable to noncontrolling interests	(1,042)	2,299	2,276
Comprehensive income attributable to SL Green/SLGOP	470,243	332,293	226,841
SL Green Operating Partnership
Net income	480,632	414,758	291,487
Other comprehensive loss:
Increase (decrease) in unrealized value of derivative instruments, including SLGOP's share of joint venture derivative instruments	21,427	(39,743)	(47,118)
Increase (decrease) in unrealized value of marketable securities	104	(1,318)	1,249
Other comprehensive income (loss)	21,531	(41,061)	(45,869)
Comprehensive income	502,163	373,697	245,618
Net loss (income) attributable to noncontrolling interests	1,884	(14,940)	3,159
Other comprehensive (income) loss attributable to noncontrolling interests	(1,042)	2,299	2,276
Comprehensive income attributable to SL Green/SLGOP	$ 503,005	$ 361,056	$ 251,053