Variable Interest Entities ("VIEs") - Summary of Assets and Liabilities of Consolidated Variable Interest Entities (Details) - USD ($) $ in Thousands		Jun. 30, 2021	Dec. 31, 2020	Jun. 30, 2020	Dec. 31, 2019
Variable Interest Entity [Line Items]
Real estate, net		$ 6,950,934	$ 6,996,618
Cash and cash equivalents and restricted cash		507,841	465,324	$ 556,459	$ 331,487
Deferred rent receivable		339,874	330,239
Deferred charges, net		111,275	116,278
Intangible assets, net		135,764	153,519
Other assets		53,543	48,976
Total assets	[1]	8,533,140	8,554,097
Notes and mortgages payable, net		3,816,759	3,800,739
Accounts payable and accrued expenses		103,895	101,901
Intangible liabilities, net		50,392	55,996
Other liabilities		65,074	62,931
Total liabilities	[1]	4,053,017	4,038,363
Variable Interest Entities [Member]
Variable Interest Entity [Line Items]
Real estate, net		3,454,201	3,470,766
Cash and cash equivalents and restricted cash		178,873	134,647
Investments in unconsolidated joint ventures		67,292	67,505
Accounts and other receivables		5,236	6,871
Deferred rent receivable		202,371	192,401
Deferred charges, net		52,008	55,156
Intangible assets, net		69,171	76,545
Other assets		24,619	21,496
Total assets		4,053,771	4,025,387
Notes and mortgages payable, net		2,470,718	2,457,272
Accounts payable and accrued expenses		54,186	51,590
Intangible liabilities, net		30,504	33,566
Other liabilities		5,412	4,486
Total liabilities		$ 2,560,820	$ 2,546,914

[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 June 30, 2021. As of June 30, 2021, the Operating Partnership includes $4,053,771 and $2,560,820 of assets and liabilities, respectively, of certain VIEs that are consolidated by the Operating Partnership. See Note 11, Variable Interest Entities (“VIEs”).