Segments - Schedule of Total Assets for Each Reportable Segments Information (Details) - USD ($) $ in Thousands		Sep. 30, 2018	Dec. 31, 2017
Segment Reporting Information [Line Items]
Total assets	[1]	$ 8,941,237	$ 8,917,661
New York [Member]
Segment Reporting Information [Line Items]
Total assets		5,573,623	5,511,061
Washington, D.C. [Member]
Segment Reporting Information [Line Items]
Total assets		444,154	693,408
San Francisco [Member]
Segment Reporting Information [Line Items]
Total assets		2,406,334	2,421,173
Other [Member]
Segment Reporting Information [Line Items]
Total assets		$ 517,126	$ 292,019

[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 90.5% as of September 30, 2018. The assets and liabilities of the Operating Partnership, as of September 30, 2018, include $1,999,741 and $1,261,751 of assets and liabilities, respectively, of certain VIEs that are consolidated by the Operating Partnership. See Note 14, Variable Interest Entities (“VIEs”).