Variable Interest Entities ("VIEs") - Summary of Assets and Liabilities of Consolidated Variable Interest Entities (Details) - USD ($) $ in Thousands		Mar. 31, 2021	Dec. 31, 2020	Mar. 31, 2020	Dec. 31, 2019
Variable Interest Entity [Line Items]
Real estate, net		$ 6,967,369	$ 6,996,618
Cash and cash equivalents and restricted cash		488,240	465,324	$ 398,252	$ 331,487
Deferred rent receivable		337,523	330,239
Deferred charges, net		111,730	116,278
Intangible assets, net		144,161	153,519
Other assets		85,521	48,976
Total assets	[1]	8,571,948	8,554,097
Notes and mortgages payable, net		3,814,962	3,800,739
Accounts payable and accrued expenses		117,260	101,901
Intangible liabilities, net		53,004	55,996
Other liabilities		63,898	62,931
Total liabilities	[1]	4,066,013	4,038,363
Variable Interest Entities [Member]
Variable Interest Entity [Line Items]
Real estate, net		3,458,220	3,470,766
Cash and cash equivalents and restricted cash		169,743	134,647
Investments in unconsolidated joint ventures		67,423	67,505
Accounts and other receivables		5,979	6,871
Deferred rent receivable		199,186	192,401
Deferred charges, net		53,717	55,156
Intangible assets, net		72,594	76,545
Other assets		31,993	21,496
Total assets		4,058,855	4,025,387
Notes and mortgages payable, net		2,470,209	2,457,272
Accounts payable and accrued expenses		67,233	51,590
Intangible liabilities, net		31,933	33,566
Other liabilities		4,901	4,486
Total liabilities		$ 2,574,276	$ 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 March 31, 2021. As of March 31, 2021, the Operating Partnership includes $4,058,855 and $2,574,276 of assets and liabilities, respectively, of certain VIEs that are consolidated by the Operating Partnership. See Note 11, Variable Interest Entities (“VIEs”).