Consolidated Balance Sheets - USD ($) $ in Thousands		Mar. 31, 2018	Dec. 31, 2017
Commercial real estate properties, at cost:
Land and land interests		$ 2,098,406	$ 2,357,051
Building and improvements		5,206,982	6,351,012
Building leasehold and improvements		1,420,346	1,450,614
Properties under capital lease		47,445	47,445
Total commercial real estate properties, at cost		8,773,179	10,206,122
Less: accumulated depreciation		(1,944,629)	(2,300,116)
Total commercial real estate properties, net		6,828,550	7,906,006
Assets held for sale		67,819	338,354
Cash and cash equivalents		288,808	127,888
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents		378,265
Restricted cash		89,457	122,138
Investments in marketable securities		28,252	28,579
Tenant and other receivables, net of allowance of $18,363 and $18,637 in 2018 and 2017, respectively		49,552	57,644
Related party receivables		31,305	23,039
Deferred rents receivable, net of allowance of $16,897and $17,207 in 2018 and 2017, respectively		320,547	365,337
Debt and preferred equity investments, net of discounts and deferred origination fees of $24,998 and $25,507 in 2018 and 2017, respectively		2,085,871	2,114,041
Investments in unconsolidated joint ventures		3,034,596	2,362,989
Deferred costs, net		195,557	226,201
Other assets		360,556	310,688
Total assets	[1]	13,380,870	13,982,904
Liabilities
Mortgages and other loans payable, net		2,433,994	2,837,282
Revolving credit facility, net		0	30,336
Unsecured term loan, net		1,491,922	1,491,575
Unsecured notes, net		1,396,320	1,395,939
Accrued interest payable		36,808	38,142
Other liabilities		103,654	188,005
Accounts payable and accrued expenses		131,797	137,142
Deferred revenue		177,896	208,119
Capital lease obligations		43,029	42,843
Deferred land leases payable		3,403	3,239
Dividend and distributions payable		82,337	85,138
Security deposits		64,647	67,927
Liabilities related to assets held for sale		42	4,074
Junior subordinated deferrable interest debentures held by trusts that issued trust preferred securities		100,000	100,000
Total liabilities	[1]	6,065,849	6,629,761
Commitments and contingencies
Noncontrolling interests in Operating Partnership		475,807	461,954
Preferred units		301,585	301,735
Equity
Series I Preferred Stock, $0.01 par value, $25.00 liquidation preference, 9,200 issued and outstanding at both March 31, 2018 and December 31, 2017		221,932	221,932
Common stock, $0.01 par value, 160,000 shares authorized and 90,190 and 93,858 issued and outstanding at March 31, 2018 and December 31, 2017, respectively (including 1,055 shares held in treasury at March 31, 2018 and December 31, 2017)		902	939
Additional paid-in-capital		4,776,594	4,968,338
Treasury stock at cost		(124,049)	(124,049)
Accumulated other comprehensive income		28,573	18,604
Retained earnings		1,583,833	1,139,329
Total SL Green stockholders' equity		6,487,785	6,225,093
Noncontrolling interests in other partnerships		49,844	364,361
Total equity		6,537,629	6,589,454
SL Green stockholders equity:
Total liabilities and equity/capital		13,380,870	13,982,904
SL Green Operating Partnership
Commercial real estate properties, at cost:
Land and land interests		2,098,406	2,357,051
Building and improvements		5,206,982	6,351,012
Building leasehold and improvements		1,420,346	1,450,614
Properties under capital lease		47,445	47,445
Total commercial real estate properties, at cost		8,773,179	10,206,122
Less: accumulated depreciation		(1,944,629)	(2,300,116)
Total commercial real estate properties, net		6,828,550	7,906,006
Assets held for sale		67,819	338,354
Cash and cash equivalents		288,808	127,888
Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents		378,265	250,026
Restricted cash		89,457	122,138
Investments in marketable securities		28,252	28,579
Tenant and other receivables, net of allowance of $18,363 and $18,637 in 2018 and 2017, respectively		49,552	57,644
Related party receivables		31,305	23,039
Deferred rents receivable, net of allowance of $16,897and $17,207 in 2018 and 2017, respectively		320,547	365,337
Debt and preferred equity investments, net of discounts and deferred origination fees of $24,998 and $25,507 in 2018 and 2017, respectively		2,085,871	2,114,041
Investments in unconsolidated joint ventures		3,034,596	2,362,989
Deferred costs, net		195,557	226,201
Other assets		360,556	310,688
Total assets	[2]	13,380,870	13,982,904
Liabilities
Mortgages and other loans payable, net		2,433,994	2,837,282
Revolving credit facility, net		0	30,336
Unsecured term loan, net		1,491,922	1,491,575
Unsecured notes, net		1,396,320	1,395,939
Accrued interest payable		36,808	38,142
Other liabilities		103,654	188,005
Accounts payable and accrued expenses		131,797	137,142
Deferred revenue		177,896	208,119
Capital lease obligations		43,029	42,843
Deferred land leases payable		3,403	3,239
Dividend and distributions payable		82,337	85,138
Security deposits		64,647	67,927
Liabilities related to assets held for sale		42	4,074
Junior subordinated deferrable interest debentures held by trusts that issued trust preferred securities		100,000	100,000
Total liabilities	[2]	6,065,849	6,629,761
Commitments and contingencies
Noncontrolling interests in Operating Partnership		475,807	461,954
Limited partner interests in SLGOP (4,715 and 4,453 limited partner common units outstanding at March 31, 2018 and December 31, 2017, respectively)		475,807	461,954
Preferred units		301,585	301,735
Equity
Accumulated other comprehensive income		28,573	18,604
SL Green stockholders equity:
Series I Preferred Units, $25.00 liquidation preference, 9,200 issued and outstanding at both March 31, 2018 and December 31, 2017		221,932	221,932
SL Green partners' capital (939 and 973 general partner common units and 88,196 and 91,831 limited partner common units outstanding at March 31, 2018 and December 31, 2017, respectively)		6,237,280	5,984,557
Total SLGOP partners' capital		6,487,785	6,225,093
Noncontrolling interests in other partnerships		49,844	364,361
Total capital		6,537,629	6,589,454
Total liabilities and equity/capital		$ 13,380,870	$ 13,982,904

[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: $174.8 million and $398.0 million of land, $0.3 billion and $1.4 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, $29.8 million and $330.9 million of accumulated depreciation, $706.0 million and $221.0 million of other assets included in other line items, $134.4 million and $628.9 million of real estate debt, net, $0.4 million and $2.5 million of accrued interest payable, $43.0 million and $42.8 million of capital lease obligations, and $17.7 million and $56.8 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, excluding the Operating Partnership: $174.8 million and $398.0 million of land, $0.3 billion and $1.4 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, $29.8 million and $330.9 million of accumulated depreciation, $706.0 million and $221.0 million of other assets included in other line items, $134.4 million and $628.9 million of real estate debt, net, $0.4 million and $2.5 million of accrued interest payable, $43.0 million and $42.8 million of capital lease obligations, and $17.7 million and $56.8 million of other liabilities included in other line items as of September 30, 2017 and December 31, 2016, respectively.