Segments Disclosure - Schedule of Selected Balance Sheet Data for Each Reportable Segments Information (Details) - USD ($) $ in Thousands		Jun. 30, 2017	Dec. 31, 2016	Jun. 30, 2016	Dec. 31, 2015
Segment Reporting Information [Line Items]
Total assets	[1]	$ 8,517,503	$ 8,867,168
Total liabilities	[1]	3,631,592	3,981,221
Total equity		4,885,911	$ 4,885,947	$ 4,872,943	$ 4,959,515
New York [Member]
Segment Reporting Information [Line Items]
Total assets		5,545,701
Total liabilities		2,444,141
Total equity		3,101,560
Washington, D.C. [Member]
Segment Reporting Information [Line Items]
Total assets		706,534
Total liabilities		26,877
Total equity		679,657
San Francisco [Member]
Segment Reporting Information [Line Items]
Total assets		1,918,142
Total liabilities		1,041,494
Total equity		876,648
Other [Member]
Segment Reporting Information [Line Items]
Total assets		347,126
Total liabilities		119,080
Total equity		$ 228,046

[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 89.9% as of June 30, 2017. The assets and liabilities of the Operating Partnership, as of June 30, 2017, include $1,466,918 and $1,026,938 of assets and liabilities, respectively, of certain VIEs that are consolidated by the Operating Partnership. See Note 12, Variable Interest Entities.