Basis of Presentation and Significant Accounting Policies - Summary of Reconciliation Net Income (Loss) Attributable to Estimated Taxable Income (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Tax Disclosure [Abstract]
Net loss attributable to Paramount Group, Inc.	$ (20,354)	$ (24,704)	$ (36,899)
Book to tax differences:
Straight-lining of rents and amortization of above and below-market leases, net	3,082	(10,462)	(37,244)
Depreciation and amortization	62,218	62,002	79,750
Stock-based compensation	16,933	17,766	20,812
Deferred compensation plan	(28,793)		500
Real estate impairment loss			38,237
Sale of real estate		55,640	12,107
Other, net	27,476	(11,095)	12,253
Estimated taxable income	$ 60,562	$ 89,147	$ 89,516