Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Revenues
Rental revenue, net	$ 281,329	$ 345,607
Escalation and reimbursement	44,192	45,611
Investment income	40,299	54,737
Other income	11,561	9,489
Total revenues	377,381	455,444
Expenses
Operating expenses, including $4,173 in 2017 and $3,462 in 2016 of related party expenses	74,506	79,520
Real estate taxes	61,068	61,674
Ground rent	8,308	8,308
Interest expense, net of interest income	65,622	94,672
Amortization of deferred financing costs	4,761	7,932
Depreciation and amortization	94,134	179,308
Transaction related costs	133	1,279
Marketing, general and administrative	24,143	24,032
Total expenses	332,675	456,725
Income (loss) before equity in net income from unconsolidated joint ventures, equity in net gain on sale of interest in unconsolidated joint venture/real estate, gain on sale of real estate, net, depreciable real estate reserves, and gain on sale of investment in marketable securities	44,706	(1,281)
Equity in net income from unconsolidated joint ventures	6,614	10,096
Equity in net gain on sale of interest in unconsolidated joint venture/real estate	2,047	9,915
Gain on sale of real estate, net	567	13,773
Depreciable real estate reserves	(56,272)	0
Gain on sale of investment in marketable securities	3,262	0
Net income	924	32,503
Net income attributable to noncontrolling interests:
Noncontrolling interests in the Operating Partnership	(476)	(922)
Noncontrolling interests in other partnerships	17,491	(1,974)
Preferred units distributions	(2,850)	(2,648)
Net income (loss) attributable to SL Green/SLGOP	15,089	26,959
Perpetual preferred stock dividends	(3,738)	(3,738)
Amounts attributable to SL Green common stockholders:
Income before depreciable real estate reserves and gains on sale	62,660	438
Equity in net gain on sale of interest in unconsolidated joint venture/real estate	1,957	9,536
Gain on sale of real estate, net	542	13,247
Depreciable real estate reserves	(53,808)	0
Net income attributable to SL Green common stockholders	$ 11,351	$ 23,221
Basic earnings per share:
Income (loss) from continuing operations before depreciable real estate reserves, gains on sale and discontinued operations (in usd per share)	$ 0.62	$ 0.00
Equity in net gain on sale of interest in unconsolidated joint venture/real estate (usd per share)	0.02	0.10
Gain on sale of real estate (in dollars per share)	0.01	0.13
Depreciable Real Estate Reserves, Effect on Earnings, Per Basic Share	(0.54)	0.00
Net income attributable to SL Green common stockholders (usd per share)	0.11	0.23
Diluted earnings per share:
Income (loss) from continuing operations before depreciable real estate reserves, gains on sale and discontinued operations (in usd per share)	0.62	0.00
Equity in net gain on sale of interest in unconsolidated joint venture/real estate (usd per share)	0.02	0.10
Gain on sale of real estate (in dollars per share)	0.01	0.13
Depreciable real estate reserves (in dollars per share)	(0.54)	0.00
Net income attributable to SL Green common stockholders (usd per share)	0.11	0.23
Dividends per share/unit (usd per share)	$ 0.775	$ 0.72
Basic weighted average common shares outstanding (in shares)	100,643	100,051
Diluted weighted average common shares and common share equivalents outstanding (in shares)	105,554	104,259
SL Green Operating Partnership
Revenues
Rental revenue, net	$ 281,329	$ 345,607
Escalation and reimbursement	44,192	45,611
Investment income	40,299	54,737
Other income	11,561	9,489
Total revenues	377,381	455,444
Expenses
Operating expenses, including $4,173 in 2017 and $3,462 in 2016 of related party expenses	74,506	79,520
Real estate taxes	61,068	61,674
Ground rent	8,308	8,308
Interest expense, net of interest income	65,622	94,672
Amortization of deferred financing costs	4,761	7,932
Depreciation and amortization	94,134	179,308
Transaction related costs	133	1,279
Marketing, general and administrative	24,143	24,032
Total expenses	332,675	456,725
Income (loss) before equity in net income from unconsolidated joint ventures, equity in net gain on sale of interest in unconsolidated joint venture/real estate, gain on sale of real estate, net, depreciable real estate reserves, and gain on sale of investment in marketable securities	44,706	(1,281)
Equity in net income from unconsolidated joint ventures	6,614	10,096
Equity in net gain on sale of interest in unconsolidated joint venture/real estate	2,047	9,915
Gain on sale of real estate, net	567	13,773
Depreciable real estate reserves	(56,272)	0
Gain on sale of investment in marketable securities	3,262	0
Net income	924	32,503
Net income attributable to noncontrolling interests:
Noncontrolling interests in the Operating Partnership	(476)
Noncontrolling interests in other partnerships	17,491	(1,974)
Preferred units distributions	(2,850)	(2,648)
Net income (loss) attributable to SL Green/SLGOP	15,565	27,881
Perpetual preferred unit distributions	(3,738)	(3,738)
Net income attributable to SLGOP common unitholders	11,827	24,143
Amounts attributable to SL Green common stockholders:
Income before depreciable real estate reserves and gains on sale	65,485	455
Equity in net gain on sale of interest in unconsolidated joint venture/real estate	2,047	9,915
Gain on sale of real estate, net	567	13,773
Depreciable real estate reserves	$ (56,272)	$ 0
Basic earnings per share:
(Loss) income from continuing operations before gains on sale and discontinued operations (usd per share)	$ 0.62	$ 0.00
Equity in net gain on sale of interest in unconsolidated joint venture/real estate (usd per share)	0.02	0.10
Gain on sale of real estate (in dollars per share)	0.01	0.13
Depreciable Real Estate Reserves, Effect on Earnings, Per Basic Share	(0.54)	0.00
Net income attributable to SLGOP common unitholders (usd per share)	0.11	0.23
Diluted earnings per share:
(Loss) income from continuing operations before gains on sale and discontinued operations (in usd per share)	0.62	0.00
Equity in net gain on sale of interest in unconsolidated joint venture/real estate (usd per share)	0.02	0.10
Gain on sale of real estate (in dollars per share)	0.01	0.13
Depreciable real estate reserves (in dollars per share)	(0.54)	0.00
Net income attributable to SLGOP common unitholders (usd per share)	0.11	0.23
Dividends per share/unit (usd per share)	$ 0.775	$ 0.72
Basic weighted average common shares outstanding (in shares)	105,250	104,025
Basic weighted average common units outstanding (in shares)	105,250	104,025
Diluted weighted average common units and common unit equivalents outstanding (in shares)	105,554	104,259