Consolidated Balance Sheets - USD ($) $ in Thousands		Dec. 31, 2019	Dec. 31, 2018
Commercial real estate properties, at cost:
Land and land interests		$ 1,751,544	$ 1,774,899
Building and improvements		5,154,990	5,268,484
Building leasehold and improvements		1,433,793	1,423,107
Right of use asset - financing leases		47,445	47,445
Right of use asset - operating leases		396,795	0
Total commercial real estate properties, at cost		8,784,567	8,513,935
Less: accumulated depreciation		(2,060,560)	(2,099,137)
Total commercial real estate properties, net		6,724,007	6,414,798
Assets held for sale		391,664	0
Cash and cash equivalents		166,070	129,475
Restricted cash		75,360	149,638
Investments in marketable securities		29,887	28,638
Tenant and other receivables, net of allowance of $12,369 and $15,702 in 2019 and 2018, respectively		43,968	41,589
Related party receivables		21,121	28,033
Deferred rents receivable, net of allowance of $12,477 and $15,457 in 2019 and 2018, respectively		283,011	335,985
Debt and preferred equity investments, net of discounts and deferred origination fees of $14,562 and $22,379 and allowances of $1,750 and $5,750 in 2019 and 2018, respectively		1,580,306	2,099,393
Investments in unconsolidated joint ventures		2,912,842	3,019,020
Deferred costs, net		205,283	209,110
Other assets		332,801	295,679
Total assets		12,766,320	12,751,358
Liabilities
Mortgages and other loans payable, net		2,183,253	1,961,240
Revolving credit facility, net		234,013	492,196
Unsecured term loans, net		1,494,024	1,493,051
Unsecured notes, net		1,496,847	1,495,214
Accrued interest payable		22,148	23,154
Other liabilities		177,080	116,566
Accounts payable and accrued expenses		166,905	147,060
Deferred revenue		114,052	94,453
Lease liability - financing leases		44,448	43,616
Lease liability - operating leases		381,671	3,603
Dividend and distributions payable		79,282	80,430
Security deposits		62,252	64,688
Liabilities related to assets held for sale		0	0
Junior subordinated deferrable interest debentures held by trusts that issued trust preferred securities		100,000	100,000
Total liabilities	[1]	6,555,975	6,115,271
Commitments and contingencies
Noncontrolling interests in Operating Partnership		409,862	387,805
Preferred units		283,285	300,427
Equity
Series I Preferred Stock, $0.01 par value, $25.00 liquidation preference, 9,200 issued and outstanding at both December 31, 2019 and 2018		221,932	221,932
Common stock, $0.01 par value, 160,000 shares authorized and 80,257 and 84,739 issued and outstanding at December 31, 2019 and 2018, respectively (including 1,055 and 1,055 shares held in treasury at December 31, 2019 and 2018, respectively)		803	847
Additional paid-in-capital		4,286,395	4,508,685
Treasury stock at cost		(124,049)	(124,049)
Accumulated other comprehensive (loss) income		(28,485)	15,108
Retained earnings		1,084,719	1,278,998
Total SL Green stockholders' equity		5,441,315	5,901,521
Noncontrolling interests in other partnerships		75,883	46,334
Total equity		5,517,198	5,947,855
SL Green stockholders equity:
Total liabilities and equity/capital		12,766,320	12,751,358
SL Green Operating Partnership
Commercial real estate properties, at cost:
Land and land interests		1,751,544	1,774,899
Building and improvements		5,154,990	5,268,484
Building leasehold and improvements		1,433,793	1,423,107
Right of use asset - financing leases		47,445	47,445
Right of use asset - operating leases		396,795	0
Total commercial real estate properties, at cost		8,784,567	8,513,935
Less: accumulated depreciation		(2,060,560)	(2,099,137)
Total commercial real estate properties, net		6,724,007	6,414,798
Assets held for sale		391,664	0
Cash and cash equivalents		166,070	129,475
Restricted cash		75,360	149,638
Investments in marketable securities		29,887	28,638
Tenant and other receivables, net of allowance of $12,369 and $15,702 in 2019 and 2018, respectively		43,968	41,589
Related party receivables		21,121	28,033
Deferred rents receivable, net of allowance of $12,477 and $15,457 in 2019 and 2018, respectively		283,011	335,985
Debt and preferred equity investments, net of discounts and deferred origination fees of $14,562 and $22,379 and allowances of $1,750 and $5,750 in 2019 and 2018, respectively		1,580,306	2,099,393
Investments in unconsolidated joint ventures			3,019,020
Deferred costs, net		205,283	209,110
Other assets		332,801	295,679
Total assets	[2]	12,766,320	12,751,358
Liabilities
Mortgages and other loans payable, net		2,183,253	1,961,240
Revolving credit facility, net		234,013	492,196
Unsecured term loans, net		1,494,024	1,493,051
Unsecured notes, net		1,496,847	1,495,214
Accrued interest payable		22,148	23,154
Other liabilities		177,080	116,566
Accounts payable and accrued expenses		166,905	147,060
Deferred revenue		114,052	94,453
Lease liability - financing leases		44,448	43,616
Lease liability - operating leases		381,671	3,603
Dividend and distributions payable		79,282	80,430
Security deposits		62,252	64,688
Liabilities related to assets held for sale		0	0
Junior subordinated deferrable interest debentures held by trusts that issued trust preferred securities		100,000	100,000
Total liabilities	[2]	6,555,975	6,115,271
Commitments and contingencies
Limited partner interests in SLGOP (4,196 and 4,131 limited partner common units outstanding at December 31, 2019 and 2018, respectively)		409,862	387,805
Preferred units		283,285	300,427
Equity
Accumulated other comprehensive (loss) income		(28,485)	15,108
SL Green stockholders equity:
Series I Preferred Units, $25.00 liquidation preference, 9,200 issued and outstanding at both December 31, 2019 and 2018		221,932	221,932
SL Green partners' capital (834 and 878 general partner common units, and 78,368 and 82,806 limited partner common units outstanding at December 31, 2019 and 2018, respectively)		5,247,868	5,664,481
Total SLGOP partners' capital		5,441,315	5,901,521
Noncontrolling interests in other partnerships		75,883	46,334
Total capital		5,517,198	5,947,855
Total liabilities and equity/capital		$ 12,766,320	$ 12,751,358

[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: $205.2 million and $110.0 million of land, $481.9 million and $346.7 million of building and improvements, $2.0 million and $2.0 million of building and leasehold improvements, $61.7 million and $47.4 million of right of use assets, $17.6 million and $42.2 million of accumulated depreciation, $169.5 million and $112.6 million of other assets included in other line items, $457.1 million and $140.8 million of real estate debt, net, $1.2 million and $0.4 million of accrued interest payable, $57.7 million and $43.6 million of lease liabilities, and $43.7 million and $18.3 million of other liabilities included in other line items as of December 31, 2019 and December 31, 2018, 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, excluding the Operating Partnership: $205.2 million and $110.0 million of land, $481.9 million and $346.7 million of building and improvements, $2.0 million and $2.0 million of building and leasehold improvements, $61.7 million and $47.4 million of right of use assets, $17.6 million and $42.2 million of accumulated depreciation, $169.5 million and $112.6 million of other assets included in other line items, $457.1 million and $140.8 million of real estate debt, net, $1.2 million and $0.4 million of accrued interest payable, $57.7 million and $43.6 million of lease liabilities, and $43.7 million and $18.3 million of other liabilities included in other line items as of December 31, 2019 and December 31, 2018, respectively.