Consolidated Balance Sheets (Partnership) (Parenthetical) - USD ($) shares in Thousands, $ in Thousands	Jun. 30, 2025	Dec. 31, 2024
Assets
Debt and preferred equity investments, discount and deferred origination fees	$ 413	$ 1,618
Allowance for loan and lease losses, real estate	66,452	13,520
Deferred costs accumulated amortization	175,949	308,923
Real estate loans held by consolidated securitization vehicles	1,431,362	584,134
Liabilities
Senior obligations of consolidated securitization vehicles	1,431,362	567,487
Capital
Land and land interests	1,448,504	1,357,041
Building and improvements	3,867,078	3,862,224
Building leasehold and improvements	1,415,754	1,388,476
Right-of-use assets - operating leases	875,379	865,639
Accumulated depreciation	2,220,242	2,126,081
Debt fund investments, at fair value	41,356	0
Real estate loans held by consolidated securitization vehicles (includes $1,431,362 and $584,134 at fair value as of June 30, 2025 and December 31, 2024, respectively)	1,431,362	709,095
Other assets	574,620	610,911
Real estate debt	2,035,822	1,944,635
Lease liabilities	107,513	106,853
Senior obligations of consolidated securitization vehicles (includes $1,431,362 and $567,487 at fair value as of June 30, 2025 and December 31, 2024, respectively)	1,431,362	590,131
Other liabilities	409,549	414,153
SL Green Operating Partnership
Assets
Debt and preferred equity investments, discount and deferred origination fees	413	1,618
Allowance for loan and lease losses, real estate	454	13,520
Real estate loans held by consolidated securitization vehicles	1,431,362	584,134
Liabilities
Senior obligations of consolidated securitization vehicles	$ 1,431,362	$ 567,487
Limited partner interests in Operating Partnership, limited partner common units outstanding (shares)	4,512	4,510
Capital
SL Green partner's capital, general partner common units outstanding (shares)	755	756
SL Green partners' capital, limited partner common units outstanding (shares)	70,269	70,341
Land and land interests	$ 1,448,504	$ 1,357,041
Building and improvements	3,867,078	3,862,224
Building leasehold and improvements	1,415,754	1,388,476
Right-of-use assets - operating leases	875,379	865,639
Accumulated depreciation	2,220,242	2,126,081
Debt fund investments, at fair value	41,356	0
Real estate loans held by consolidated securitization vehicles (includes $1,431,362 and $584,134 at fair value as of June 30, 2025 and December 31, 2024, respectively)	1,431,362	709,095
Other assets	574,620	610,911
Real estate debt	2,035,822	1,944,635
Lease liabilities	107,513	106,853
Senior obligations of consolidated securitization vehicles (includes $1,431,362 and $567,487 at fair value as of June 30, 2025 and December 31, 2024, respectively)	1,431,362	590,131
Other liabilities	409,549	414,153
Service Corporation
Capital
Land and land interests	236,700	236,700
Building and improvements	174,400	159,100
Building leasehold and improvements	0	0
Right-of-use assets - operating leases	0	0
Accumulated depreciation	8,900	4,100
Debt fund investments, at fair value	41,400	0
Real estate loans held by consolidated securitization vehicles (includes $1,431,362 and $584,134 at fair value as of June 30, 2025 and December 31, 2024, respectively)	1,431,400	709,100
Other assets	869,600	830,300
Real estate debt	374,400	357,900
Accrued interest payable	1,000	1,100
Lease liabilities	0	0
Senior obligations of consolidated securitization vehicles (includes $1,431,362 and $567,487 at fair value as of June 30, 2025 and December 31, 2024, respectively)	1,431,400	590,100
Other liabilities	$ 316,800	$ 324,800
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