Audit Information	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Auditor [Line Items]
Auditor Firm ID	34	42
Auditor Name	Deloitte & Touche LLP	Ernst & Young LLP
Auditor Location	New York, New York	New York, New York
SL Green Operating Partnership
Auditor [Line Items]
Auditor Firm ID	34	42
Auditor Name	Deloitte & Touche LLP	Ernst & Young LLP
Auditor Location	New York, New York	New York, New York