Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Revenues
Rental revenue, net	$ 244,959	$ 238,421	$ 485,077	$ 480,189
Investment income	51,618	49,273	101,649	94,563
Other income	16,447	13,422	30,553	28,059
Total revenues	313,024	301,116	617,279	602,811
Expenses
Operating expenses, including related party expenses of $5,323 and $8,116 in 2019 and $4,665 and $8,499 in 2018	58,317	56,237	116,015	116,019
Real estate taxes	46,694	45,322	93,382	90,983
Operating lease rent	8,298	8,846	16,596	17,154
Interest expense, net of interest income	47,160	53,611	97,685	101,527
Amortization of deferred financing costs	2,712	3,546	5,454	7,083
Depreciation and amortization	69,461	67,914	137,804	137,302
Transaction related costs	261	348	316	510
Marketing, general and administrative	25,480	22,479	51,459	46,007
Total expenses	258,383	258,303	518,711	516,585
Equity in net (loss) income from unconsolidated joint ventures	(7,546)	4,702	(12,780)	8,738
Equity in net (loss) gain on sale of interest in unconsolidated joint venture/real estate	59,015	72,025	76,181	65,585
Purchase price and other fair value adjustments	67,631	11,149	65,590	60,442
(Loss) gain on sale of real estate, net	0	(14,790)	(1,049)	8,731
Net income	173,741	115,899	226,510	229,722
Net (income) loss attributable to noncontrolling interests:
Noncontrolling interests in the Operating Partnership	(8,310)	(5,586)	(10,587)	(10,858)
Noncontrolling interests in other partnerships	2,138	(173)	1,900	(371)
Preferred units distributions	(2,729)	(2,847)	(5,453)	(5,696)
Net income (loss) attributable to SL Green/SLGOP	164,840	107,293	212,370	212,797
Perpetual preferred stock dividends	(3,737)	(3,737)	(7,475)	(7,475)
Net income attributable to SL Green common stockholders	$ 161,103	$ 103,556	$ 204,895	$ 205,322
Basic Earnings per Share (usd per share)	$ 1.94	$ 1.19	$ 2.46	$ 2.31
Diluted Earnings per Share (usd per share)	$ 1.94	$ 1.19	$ 2.46	$ 2.31
Basic weighted average common shares outstanding (in shares)	82,971	87,176	83,141	88,772
Diluted weighted average common shares and common share equivalents outstanding (in shares)	87,398	92,083	87,606	93,667
SL Green Operating Partnership
Revenues
Rental revenue, net	$ 244,959	$ 238,421	$ 485,077	$ 480,189
Investment income	51,618	49,273	101,649	94,563
Other income	16,447	13,422	30,553	28,059
Total revenues	313,024	301,116	617,279	602,811
Expenses
Operating expenses, including related party expenses of $5,323 and $8,116 in 2019 and $4,665 and $8,499 in 2018	58,317	56,237	116,015	116,019
Real estate taxes	46,694	45,322	93,382	90,983
Operating lease rent	8,298	8,846	16,596	17,154
Interest expense, net of interest income	47,160	53,611	97,685	101,527
Amortization of deferred financing costs	2,712	3,546	5,454	7,083
Depreciation and amortization	69,461	67,914	137,804	137,302
Transaction related costs	261	348	316	510
Marketing, general and administrative	25,480	22,479	51,459	46,007
Total expenses	258,383	258,303	518,711	516,585
Equity in net (loss) income from unconsolidated joint ventures	(7,546)	4,702	(12,780)	8,738
Equity in net (loss) gain on sale of interest in unconsolidated joint venture/real estate	59,015	72,025	76,181	65,585
Purchase price and other fair value adjustments	67,631	11,149	65,590	60,442
(Loss) gain on sale of real estate, net	0	(14,790)	(1,049)	8,731
Net income	173,741	115,899	226,510	229,722
Net (income) loss attributable to noncontrolling interests:
Noncontrolling interests in the Operating Partnership			(10,587)
Noncontrolling interests in other partnerships	2,138	(173)	1,900	(371)
Preferred units distributions	(2,729)	(2,847)	(5,453)	(5,696)
Net income (loss) attributable to SL Green/SLGOP	173,150	112,879	222,957	223,655
Perpetual preferred unit distributions	(3,737)	(3,737)	(7,475)	(7,475)
Net income attributable to SLGOP common unitholders	$ 169,413	$ 109,142	$ 215,482	$ 216,180
Basic Earnings per Unit (usd per share)	$ 1.94	$ 1.19	$ 2.46	$ 2.31
Diluted Earnings per Unit (usd per share)	$ 1.94	$ 1.19	$ 2.46	$ 2.31
Basic weighted average common units outstanding (in shares)	87,231	91,882	87,437	93,467
Diluted weighted average common units and common unit equivalents outstanding (in shares)	87,398	92,083	87,606	93,667