Consolidated Balance Sheets (Partnership) (Parenthetical) - USD ($) shares in Thousands, $ in Thousands	Mar. 31, 2022	Dec. 31, 2021
Debt and preferred equity investments, discount and deferred origination fees	$ 3,670	$ 5,057
Allowance for loan and lease losses, real estate	6,630	6,630
Building and improvements	3,709,795	3,671,402
Building leasehold and improvements	1,654,571	1,645,081
Accumulated depreciation	1,938,804	1,896,199
Other assets	308,960	262,841
Mortgages and other loans payable, net	1,344,775	1,394,386
Lease liability - financing leases	103,238	102,914
Other liabilities	276,254	195,390
Land and land interests	1,352,610	1,350,701
SL Green Operating Partnership
Debt and preferred equity investments, discount and deferred origination fees	3,670	5,057
Allowance for loan and lease losses, real estate	$ 6,630	$ 6,630
Limited partner interests in Operating Partnership, limited partner common units outstanding (shares)	4,095	3,782
SL Green partner's capital, general partner common units outstanding (shares)	682	677
SL Green partners' capital, limited partner common units outstanding (shares)	63,442	63,428
Building and improvements	$ 3,709,795	$ 3,671,402
Building leasehold and improvements	1,654,571	1,645,081
Accumulated depreciation	1,938,804	1,896,199
Other assets	308,960	262,841
Mortgages and other loans payable, net	1,344,775	1,394,386
Lease liability - financing leases	103,238	102,914
Other liabilities	276,254	195,390
Land and land interests	1,352,610	1,350,701
Service Corporation
Building and improvements	291,200	336,900
Building leasehold and improvements	0	0
Right of use asset - financing leases	15,400	15,400
Accumulated depreciation	11,500	11,700
Other assets	569,700	574,400
Mortgages and other loans payable, net	372,500	418,900
Accrued interest payable	800	800
Lease liability - financing leases	15,300	15,300
Other liabilities	226,400	145,200
Land and land interests	$ 179,600	$ 193,400
Series I Preferred Stock | SL Green Operating Partnership
Preferred units, liquidation preference (in dollars per share)	$ 25.00	$ 25.00
Preferred units, shares issued (in shares)	9,200	9,200
Preferred units, shares outstanding (in shares)	9,200	9,200