Investments in Unconsolidated Joint Ventures - Summary of Financial Information of Unconsolidated Joint Ventures (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Schedule Of Equity Method Investments [Line Items]
Total assets	[1]	$ 8,288,559		$ 8,288,559		$ 8,453,254
Total liabilities	[1]	3,978,594		3,978,594		4,042,488
Equity		3,429,212		3,429,212		3,592,291
Total liabilities and equity		8,288,559		8,288,559		8,453,254
Rental revenue		182,515	$ 179,250	529,734	$ 526,415
Other income		2,093	2,765	6,477	6,840
Total revenues		189,181	187,147	550,317	556,349
Operating		75,502	72,845	216,889	207,320
Depreciation and amortization		60,263	58,284	181,778	171,306
Total expenses		151,357	144,384	445,297	424,508
Interest and other income		4,115	1,580	10,007	2,607
Interest and debt expense		(39,102)	(36,949)	(112,440)	(106,804)
Loss before income taxes		(24,798)	1,897	(98,452)	12,943
Income tax expense		(263)	(673)	(1,124)	(1,559)
Net (loss) income attributable to common stockholders		(8,385)	(1,537)	(54,194)	1,474
Unconsolidated Joint Ventures [Member]
Schedule Of Equity Method Investments [Line Items]
Real estate, net		1,974,734		1,974,734		2,377,084
Cash and cash equivalents and restricted cash		208,778		208,778		252,540
Intangible assets, net		55,295		55,295		69,599
For-sale residential condominium units	[2]	250,000		250,000		322,232
Other assets		84,647		84,647		87,054
Total assets		2,573,454		2,573,454		3,108,509
Notes and mortgages payable, net		1,740,516		1,740,516		1,834,916
Intangible liabilities, net		6,184		6,184		10,972
Other liabilities		81,698		81,698		50,783
Total liabilities		1,828,398		1,828,398		1,896,671
Equity		745,056		745,056		1,211,838
Total liabilities and equity		2,573,454		2,573,454		$ 3,108,509
Rental revenue		38,629	41,145	119,235	153,181
Other income	[3]	874	15,250	6,492	65,276
Total revenues		39,503	56,395	125,727	218,457
Operating	[3]	23,941	34,234	73,632	129,035
Depreciation and amortization		16,863	17,734	52,341	68,140
Total expenses		40,804	51,968	125,973	197,175
Interest and other income		734	471	2,226	487
Interest and debt expense		(19,895)	(13,967)	(53,256)	(47,900)
Impairment loss	[4]	(68,407)		(524,300)
Loss before income taxes		(88,869)	(9,069)	(575,576)	(26,131)
Income tax expense		(2)	(11)	(32)	(54)
Net (loss) income attributable to common stockholders		$ (88,871)	$ (9,080)	$ (575,608)	$ (26,185)

[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 91.8% as of September 30, 2023. As of September 30, 2023, the assets and liabilities of the Operating Partnership include $3,933,437 and $2,525,808 of assets and liabilities, respectively, of certain VIEs that are consolidated by the Operating Partnership. See Note 12, Variable Interest Entities (“VIEs”).

[2] Represents residential condominium units at One Steuart Lane that are available for sale.

[3] Includes proceeds and cost of sales from the sale of residential condominium units at One Steuart Lane.

[4] Includes an impairment loss related to condominium units at One Steuart Lane in the three and nine months ended September 30, 2023 and a real estate impairment loss related to 60 Wall Street in the nine months ended September 30, 2023. See notes 4 and 6 on page 13.