Organization and Business - Additional Information (Details) ft² in Millions	12 Months Ended
	Dec. 31, 2021 ft² Properties
Real Estate Properties [Line Items]
Area of office and retail properties	13.9
Rent collections expressed as a percentage of billing	99.60%
Office Tenants [Member]
Real Estate Properties [Line Items]
Rent collections expressed as a percentage of billing	99.90%
Annualized rent	96.50%
Non Office Tenants [Member]
Real Estate Properties [Line Items]
Rent collections expressed as a percentage of billing	92.90%
Annualized rent	3.50%
New York [Member]
Real Estate Properties [Line Items]
Number of Real Estate Properties | Properties	7
Area of office and retail properties	8.6
New York [Member] | Office Space [Member]
Real Estate Properties [Line Items]
Area of office and retail properties	8.2
New York [Member] | Retail, Theater and Amenity Space [Member]
Real Estate Properties [Line Items]
Area of office and retail properties	0.4
San Francisco [Member]
Real Estate Properties [Line Items]
Number of Real Estate Properties | Properties	6
Area of office and retail properties	4.3
San Francisco [Member] | Office Space [Member]
Real Estate Properties [Line Items]
Area of office and retail properties	4.1
San Francisco [Member] | Retail Space [Member]
Real Estate Properties [Line Items]
Area of office and retail properties	0.2
New York And Washington, D.C [Member]
Real Estate Properties [Line Items]
Number of real estate properties managed | Properties	6
Area of office and retail properties	1.0
Variable Interest Entities [Member] | Paramount Group Operating Partnership [Member]
Real Estate Properties [Line Items]
Percentage of ownership in operating partnership	91.00%