Investments in Unconsolidated Joint Ventures - Summary of Financial Information of Unconsolidated Joint Ventures (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2021		Dec. 31, 2020		Dec. 31, 2019
Schedule Of Equity Method Investments [Line Items]
Total assets		$ 8,494,562	[1]	$ 8,554,097	[1]	$ 8,734,135
Total liabilities	[1]	4,039,530		4,038,363
Equity		3,588,163		3,653,177
Total liabilities and equity		8,494,562		8,554,097
Rental revenue		690,418		679,015		709,508
Other income		7,895		7,152		11,502
Total revenues		726,786		714,237		743,754
Operating		265,438		267,587		264,702
Depreciation and amortization		232,487		235,200		240,104
Total expenses		557,973		568,800		575,361
Interest and other income, net		3,017		4,490		9,844
Interest and debt expense		(142,014)		(144,208)		(156,679)
Net loss before income taxes		5,702		(12,628)		4,520
Income tax expense		(3,643)		(1,493)		(312)
Net loss attributable to common stockholders		(20,354)		(24,704)		(36,899)
Unconsolidated Joint Ventures [Member]
Schedule Of Equity Method Investments [Line Items]
Real estate, net		2,246,152		2,674,858
Cash and cash equivalents and restricted cash		216,910		120,149
Intangible assets, net		58,590		110,307
For-sale residential condominium units		359,638
Other assets		46,646		45,761
Total assets		2,927,936		2,951,075
Notes and mortgages payable, net		1,791,404		1,801,084
Intangible liabilities, net		18,397		26,772
Other liabilities		61,097		87,575
Total liabilities		1,870,898		1,915,431
Equity		1,057,038		1,035,644
Total liabilities and equity		2,927,936		2,951,075
Rental revenue		229,420		243,713		164,316
Other income		139,705		2,828		2,108
Total revenues		369,125		246,541		166,424
Operating		220,396		109,114		68,491
Depreciation and amortization		107,079		117,640		68,318
Total expenses		327,475		226,754		136,809
Interest and other income, net		(111)		(36)		663
Interest and debt expense		(63,493)		(58,239)		(51,113)
Net loss before income taxes		(21,954)		(38,488)		(20,835)
Income tax expense		(32)		(47)		(16)
Net loss attributable to common stockholders		$ (21,986)		$ (38,535)		$ (20,851)

[1] Represents the consolidated assets and liabilities of Paramount Group Operating Partnership LP, a Delaware limited partnership (the “Operating Partnership”). The Operating Partnership is a consolidated variable interest entity (“VIE”), of which we are the sole general partner and own approximately 91.0% as of December 31, 2021. As of December 31, 2021, the Operating Partnership includes $4,025,856 and $2,576,710 of assets and liabilities, respectively, of certain VIEs that are consolidated by the Operating Partnership. See Note 12, Variable Interest Entities (“VIEs”).