Variable Interest Entities ("VIEs") - Summary of Assets and Liabilities of Consolidated Variable Interest Entities (Details) - USD ($) $ in Thousands		Sep. 30, 2025	Dec. 31, 2024	Sep. 30, 2024	Dec. 31, 2023
Variable Interest Entity [Line Items]
Real estate, net		$ 6,612,697	$ 6,651,805
Cash and cash equivalents and restricted cash		654,357	555,447	$ 492,235	$ 509,599
Accounts and other receivables		26,582	18,229
Investments in unconsolidated joint ventures		81,509	85,952
Deferred rent receivable		352,906	356,425
Deferred charges, net		126,587	100,684
Intangible assets, net		41,093	50,492
Other assets		74,348	47,820
Total assets	[1]	7,974,495	7,871,503
Notes and mortgages payable, net		3,711,504	3,676,630
Accounts payable and accrued expenses		138,689	119,881
Intangible liabilities, net		16,541	20,870
Other liabilities		31,473	44,625
Total liabilities	[1]	3,898,207	3,862,006
Variable Interest Entities [Member]
Variable Interest Entity [Line Items]
Real estate, net		3,938,898	3,199,972
Cash and cash equivalents and restricted cash		364,339	280,258
Accounts and other receivables		14,708	10,067
Investments in unconsolidated joint ventures		66,932	76,579
Deferred rent receivable		201,373	192,939
Deferred charges, net		56,786	38,610
Intangible assets, net		22,930	28,569
Other assets		25,032	7,078
Total assets		4,690,998	3,834,072
Notes and mortgages payable, net		2,325,671	2,320,880
Accounts payable and accrued expenses		68,066	54,877
Intangible liabilities, net		10,042	12,581
Other liabilities		6,436	5,334
Total liabilities		$ 2,410,215	$ 2,393,672

[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 93.2% as of September 30, 2025. As of September 30, 2025, the assets and liabilities of the Operating Partnership include $4,690,998 and $2,410,215 of assets and liabilities, respectively, of certain VIEs that are consolidated by the Operating Partnership. See Note 13, Variable Interest Entities (“VIEs”).