Consolidated Statements of Operations (Unaudited) - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Revenues
Rental revenue, net	$ 195,886	$ 244,959	$ 418,517	$ 485,077
Investment income	39,943	51,618	78,476	101,649
Other income	17,870	16,447	71,009	30,553
Total revenues	253,699	313,024	568,002	617,279
Expenses
Operating expenses, including related party expenses of $2,739 and $6,488 in 2020 and $5,323 and $8,116 in 2019	40,897	58,317	94,763	116,015
Real estate taxes	41,661	46,694	88,283	93,382
Operating lease rent	7,831	8,298	15,198	16,596
Interest expense, net of interest income	30,070	47,160	67,564	97,685
Amortization of deferred financing costs	2,661	2,712	5,161	5,454
Depreciation and amortization	95,941	69,461	164,220	137,804
Loan loss and other investment reserves, net of recoveries	6,813	0	18,061	0
Transaction related costs	373	261	438	316
Marketing, general and administrative	23,510	25,480	43,080	51,459
Total expenses	249,757	258,383	496,768	518,711
Equity in net loss from unconsolidated joint ventures	(2,199)	(7,546)	(15,013)	(12,780)
Equity in net (loss) gain on sale of interest in unconsolidated joint venture/real estate	0	59,015	0	76,181
Purchase price and other fair value adjustments	0	67,631	0	65,590
Gain (loss) on sale of real estate, net	64,884	0	137,520	(1,049)
Net income	66,627	173,741	193,741	226,510
Net (income) loss attributable to noncontrolling interests:
Noncontrolling interests in the Operating Partnership	(3,070)	(8,310)	(9,272)	(10,587)
Noncontrolling interests in other partnerships	(1,023)	2,138	(730)	1,900
Preferred units distributions	(2,353)	(2,729)	(5,019)	(5,453)
Net income (loss) attributable to SL Green/SLGOP	60,181	164,840	178,720	212,370
Perpetual preferred stock dividends	(3,737)	(3,737)	(7,475)	(7,475)
Net income attributable to SL Green common stockholders	$ 56,444	$ 161,103	$ 171,245	$ 204,895
Basic earnings per share (usd per share)	$ 0.74	$ 1.94	$ 2.22	$ 2.46
Diluted earnings per share (usd per share)	$ 0.74	$ 1.94	$ 2.22	$ 2.46
Basic weighted average common shares outstanding (in shares)	75,690	82,971	76,782	83,141
Diluted weighted average common shares and common share equivalents outstanding (in shares)	80,219	87,398	81,392	87,606
SL Green Operating Partnership
Revenues
Rental revenue, net	$ 195,886	$ 244,959	$ 418,517	$ 485,077
Investment income	39,943	51,618	78,476	101,649
Other income	17,870	16,447	71,009	30,553
Total revenues	253,699	313,024	568,002	617,279
Expenses
Operating expenses, including related party expenses of $2,739 and $6,488 in 2020 and $5,323 and $8,116 in 2019	40,897	58,317	94,763	116,015
Real estate taxes	41,661	46,694	88,283	93,382
Operating lease rent	7,831	8,298	15,198	16,596
Interest expense, net of interest income	30,070	47,160	67,564	97,685
Amortization of deferred financing costs	2,661	2,712	5,161	5,454
Depreciation and amortization	95,941	69,461	164,220	137,804
Loan loss and other investment reserves, net of recoveries	6,813	0	18,061	0
Transaction related costs	373	261	438	316
Marketing, general and administrative	23,510	25,480	43,080	51,459
Total expenses	249,757	258,383	496,768	518,711
Equity in net loss from unconsolidated joint ventures	(2,199)	(7,546)	(15,013)	(12,780)
Equity in net (loss) gain on sale of interest in unconsolidated joint venture/real estate	0	59,015	0	76,181
Purchase price and other fair value adjustments	0	67,631	0	65,590
Gain (loss) on sale of real estate, net	64,884	0	137,520	(1,049)
Net income	66,627	173,741	193,741	226,510
Net (income) loss attributable to noncontrolling interests:
Noncontrolling interests in other partnerships	(1,023)	2,138	(730)	1,900
Preferred units distributions	(2,353)	(2,729)	(5,019)	(5,453)
Net income (loss) attributable to SL Green/SLGOP	63,251	173,150	187,992	222,957
Perpetual preferred unit distributions	(3,737)	(3,737)	(7,475)	(7,475)
Net income attributable to SLGOP common unitholders	$ 59,514	$ 169,413	$ 180,517	$ 215,482
Basic earnings per unit (usd per share)	$ 0.74	$ 1.94	$ 2.22	$ 2.46
Diluted earnings per unit (usd per share)	$ 0.74	$ 1.94	$ 2.22	$ 2.46
Basic weighted average common units outstanding (in shares)	79,810	87,231	80,952	87,437
Diluted weighted average common units and common unit equivalents outstanding (in shares)	80,219	87,398	81,392	87,606