Consolidated Balance Sheets - USD ($) $ in Thousands		Sep. 30, 2017	Dec. 31, 2016
Commercial real estate properties, at cost:
Land and land interests		$ 2,917,993	$ 3,309,710
Building and improvements		7,468,436	7,948,852
Building leasehold and improvements		1,444,698	1,437,325
Properties under capital lease		47,445	47,445
Total commercial real estate properties, at cost		11,878,572	12,743,332
Less: accumulated depreciation		(2,457,071)	(2,264,694)
Total commercial real estate properties, net		9,421,501	10,478,638
Assets held for sale		127,663	0
Cash and cash equivalents		241,489	279,443
Restricted cash		107,763	90,524
Investments in marketable securities		28,802	85,110
Tenant and other receivables, net of allowance of $18,365 and $16,592 in 2017 and 2016, respectively		54,663	53,772
Related party receivables		24,068	15,856
Deferred rents receivable, net of allowance of $21,257 and $25,203 in 2017 and 2016, respectively		393,793	442,179
Debt and preferred equity investments, net of discounts and deferred origination fees of $24,782 and $16,705 in 2017 and 2016, respectively		2,020,739	1,640,412
Investments in unconsolidated joint ventures		2,045,796	1,890,186
Deferred costs, net		247,981	267,600
Other assets		395,612	614,067
Total assets	[1]	15,109,870	15,857,787
Liabilities
Mortgages and other loans payable, net		3,804,174	4,073,830
Revolving credit facility, net		275,832	0
Unsecured term loan, net		1,180,506	1,179,521
Unsecured notes, net		1,064,544	1,128,315
Accrued interest payable		34,367	36,052
Other liabilities		95,718	206,238
Accounts payable and accrued expenses		144,767	190,583
Deferred revenue		252,779	217,955
Capital lease obligations		42,660	42,132
Deferred land leases payable		3,075	2,583
Dividend and distributions payable		85,007	87,271
Security deposits		68,465	66,504
Liabilities related to assets held for sale		1,141	0
Junior subordinated deferrable interest debentures held by trusts that issued trust preferred securities		100,000	100,000
Total liabilities	[1]	7,153,035	7,330,984
Commitments and contingencies
Noncontrolling interests in Operating Partnership		470,898	473,882
Preferred units		301,885	302,010
Equity
Series I Preferred Stock, $0.01 par value, $25.00 liquidation preference, 9,200 issued and outstanding at both September 30, 2017 and December 31, 2016		221,932	221,932
Common stock, $0.01 par value, 160,000 shares authorized and 98,501 and 101,617 issued and outstanding at September 30, 2017 and December 31, 2016, respectively (including 1,055 shares held in treasury at September 30, 2017 and December 31, 2016)		985	1,017
Additional paid-in-capital		5,294,500	5,624,545
Treasury stock at cost		(124,049)	(124,049)
Accumulated other comprehensive income		14,185	22,137
Retained earnings		1,410,332	1,578,893
Total SL Green stockholders' equity		6,817,885	7,324,475
Noncontrolling interests in other partnerships		366,167	426,436
Total equity		7,184,052	7,750,911
SL Green stockholders equity:
Total liabilities and equity/capital		15,109,870	15,857,787
SL Green Operating Partnership
Commercial real estate properties, at cost:
Land and land interests		2,917,993	3,309,710
Building and improvements		7,468,436	7,948,852
Building leasehold and improvements		1,444,698	1,437,325
Properties under capital lease		47,445	47,445
Total commercial real estate properties, at cost		11,878,572	12,743,332
Less: accumulated depreciation		(2,457,071)	(2,264,694)
Total commercial real estate properties, net		9,421,501	10,478,638
Assets held for sale		127,663	0
Cash and cash equivalents		241,489	279,443
Restricted cash		107,763	90,524
Investments in marketable securities		28,802	85,110
Tenant and other receivables, net of allowance of $18,365 and $16,592 in 2017 and 2016, respectively		54,663	53,772
Related party receivables		24,068	15,856
Deferred rents receivable, net of allowance of $21,257 and $25,203 in 2017 and 2016, respectively		393,793	442,179
Debt and preferred equity investments, net of discounts and deferred origination fees of $24,782 and $16,705 in 2017 and 2016, respectively		2,020,739	1,640,412
Investments in unconsolidated joint ventures		2,045,796	1,890,186
Deferred costs, net		247,981	267,600
Other assets		395,612	614,067
Total assets	[2]	15,109,870	15,857,787
Liabilities
Mortgages and other loans payable, net		3,804,174	4,073,830
Revolving credit facility, net		275,832	0
Unsecured term loan, net		1,180,506	1,179,521
Unsecured notes, net		1,064,544	1,128,315
Accrued interest payable		34,367	36,052
Other liabilities		95,718	206,238
Accounts payable and accrued expenses		144,767	190,583
Deferred revenue		252,779	217,955
Capital lease obligations		42,660	42,132
Deferred land leases payable		3,075	2,583
Dividend and distributions payable		85,007	87,271
Security deposits		68,465	66,504
Liabilities related to assets held for sale		1,141	0
Junior subordinated deferrable interest debentures held by trusts that issued trust preferred securities		100,000	100,000
Total liabilities	[2]	7,153,035	7,330,984
Commitments and contingencies
Noncontrolling interests in Operating Partnership		470,898	473,882
Limited partner interests in SLGOP (4,542 and 4,364 limited partner common units outstanding at September 30, 2017 and December 31, 2016, respectively)		470,898	473,882
Preferred units		301,885	302,010
Equity
Accumulated other comprehensive income		14,185	22,137
SL Green stockholders equity:
Series I Preferred Units, $25.00 liquidation preference, 9,200 issued and outstanding at both September 30, 2017 and December 31, 2016		221,932	221,932
SL Green partners' capital (1,020 and 1,049 general partner common units and 96,426 and 99,513 limited partner common units outstanding at September 30, 2017 and December 31, 2016, respectively)		6,581,768	7,080,406
Total SLGOP partners' capital		6,817,885	7,324,475
Noncontrolling interests in other partnerships		366,167	426,436
Total capital		7,184,052	7,750,911
Total liabilities and equity/capital		$ 15,109,870	$ 15,857,787

[1] The Company's consolidated balance sheets include assets and liabilities of consolidated variable interest entities ("VIEs"). See Note 2. The consolidated balance sheets include the following amounts related to our consolidated VIEs, excluding the Operating Partnership: $384.3 million and $412.3 million of land, $1.4 billion and $1.5 billion of building and improvements, $2.0 million and $2.0 million of building and leasehold improvements, $47.4 million and $47.4 million of properties under capital lease, $323.3 million and $327.2 million of accumulated depreciation, $235.4 million and $244.2 million of other assets included in other line items, $627.8 million and $621.8 million of real estate debt, net, $2.5 million and $2.2 million of accrued interest payable, $42.7 million and $42.1 million of capital lease obligations, and $58.5 million and $73.3 million of other liabilities included in other line items as of September 30, 2017 and December 31, 2016, respectively.

[2] The Operating Partnership's consolidated balance sheets include assets and liabilities of consolidated variable interest entities ("VIEs"). See Note 2. The consolidated balance sheets include the following amounts related to our consolidated VIEs: $384.3 million and $412.3 million of land, $1.4 billion and $1.5 billion of building and improvements, $2.0 million and $2.0 million of building and leasehold improvements, $47.4 million and $47.4 million of properties under capital lease, $323.3 million and $327.2 million of accumulated depreciation, $235.4 million and $244.2 million of other assets included in other line items, $627.8 million and $621.8 million of real estate debt, net, $2.5 million and $2.2 million of accrued interest payable, $42.7 million and $42.1 million of capital lease obligations, and $58.5 million and $73.3 million of other liabilities included in other line items as of September 30, 2017 and December 31, 2016, respectively.