Consolidated Statements of Operations (Partnership) (Parenthetical) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2026	Mar. 31, 2025
Expenses
Operating expenses	$ 61,457	$ 56,062
Related party
Expenses
Operating expenses	2	3
SL Green Operating Partnership
Expenses
Operating expenses	61,457	56,062
SL Green Operating Partnership \| Related party
Expenses
Operating expenses	$ 2	$ 3

Generally recurring costs associated with normal operations except for the portion of these expenses which can be clearly related to production and included in cost of sales or services. Excludes Selling, General and Administrative Expense.

No definition available.

Name:	us-gaap_OperatingCostsAndExpenses
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration