Consolidated Balance Sheets (Partnership) (Parenthetical) - USD ($) shares in Thousands, $ in Thousands	Sep. 30, 2024	Dec. 31, 2023
Assets
Debt and preferred equity investments, discount and deferred origination fees	$ 1,618	$ 1,630
Allowance for loan and lease losses, real estate	13,520	13,520
Real estate loans held by consolidated securitization vehicles	586,823	0
Liabilities
Senior obligations of consolidated securitization vehicles	571,711	0
Secured borrowings	237,454	0
Capital
Land and land interests	1,134,432	1,092,671
Building and improvements	3,781,403	3,655,624
Building leasehold and improvements	1,374,059	1,354,569
Right-of-use assets - operating leases	870,782	885,929
Accumulated depreciation	2,084,755	1,968,004
Real estate loans held by consolidated securitization vehicles (includes $586,823 and $— at fair value as of September 30, 2024 and December 31, 2023, respectively)	713,218	0
Other assets	490,722	413,670
Mortgages and other loans payable, net	1,643,992	1,491,319
Lease liability - financing leases	106,518	105,531
Senior obligations of consolidated securitization vehicles (includes $571,711 and $— at fair value as of September 30, 2024 and December 31, 2023, respectively)	603,902	0
Other liabilities (includes $237,454 and $— at fair value as of September 30, 2024 and December 31, 2023, respectively)	409,844	471,401
SL Green Operating Partnership
Assets
Debt and preferred equity investments, discount and deferred origination fees	1,618	1,630
Allowance for loan and lease losses, real estate	13,520	13,520
Real estate loans held by consolidated securitization vehicles	586,823	0
Liabilities
Senior obligations of consolidated securitization vehicles	571,711	0
Secured borrowings	$ 237,454	$ 0
Limited partner interests in Operating Partnership, limited partner common units outstanding (shares)	4,474	3,949
Capital
SL Green partner's capital, general partner common units outstanding (shares)	694	687
SL Green partners' capital, limited partner common units outstanding (shares)	64,541	64,039
Land and land interests	$ 1,134,432	$ 1,092,671
Building and improvements	3,781,403	3,655,624
Building leasehold and improvements	1,374,059	1,354,569
Right-of-use assets - operating leases	870,782	885,929
Accumulated depreciation	2,084,755	1,968,004
Real estate loans held by consolidated securitization vehicles (includes $586,823 and $— at fair value as of September 30, 2024 and December 31, 2023, respectively)	713,218	0
Other assets	490,722	413,670
Mortgages and other loans payable, net	1,643,992	1,491,319
Lease liability - financing leases	106,518	105,531
Senior obligations of consolidated securitization vehicles (includes $571,711 and $— at fair value as of September 30, 2024 and December 31, 2023, respectively)	603,902	0
Other liabilities (includes $237,454 and $— at fair value as of September 30, 2024 and December 31, 2023, respectively)	409,844	471,401
Service Corporation
Capital
Land and land interests	104,100	41,200
Building and improvements	65,400	40,500
Building leasehold and improvements	0	0
Right-of-use assets - operating leases	0	0
Accumulated depreciation	3,200	5,400
Real estate loans held by consolidated securitization vehicles (includes $586,823 and $— at fair value as of September 30, 2024 and December 31, 2023, respectively)	713,200	0
Other assets	776,300	676,900
Mortgages and other loans payable, net	204,300	50,000
Accrued interest payable	900	900
Lease liability - financing leases	0	0
Senior obligations of consolidated securitization vehicles (includes $571,711 and $— at fair value as of September 30, 2024 and December 31, 2023, respectively)	603,900	0
Other liabilities (includes $237,454 and $— at fair value as of September 30, 2024 and December 31, 2023, respectively)	$ 308,000	$ 306,500
Series I Preferred Stock | SL Green Operating Partnership
Capital
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