Segments Disclosure - Schedule of Selected Balance Sheet Data for Each Reportable Segments Information (Details) - USD ($) $ in Thousands		Sep. 30, 2016	Dec. 31, 2015	Sep. 30, 2015	Dec. 31, 2014
Segment Reporting Information [Line Items]
Total assets	[1]	$ 8,340,048	$ 8,775,229
Total liabilities	[1]	3,477,758	3,464,679
Total equity		4,862,290	$ 5,310,550	$ 5,534,866	$ 5,554,953
New York [Member]
Segment Reporting Information [Line Items]
Total assets		5,621,258
Total liabilities		1,936,170
Total equity		3,685,088
Washington, D.C. [Member]
Segment Reporting Information [Line Items]
Total assets		1,065,587
Total liabilities		406,449
Total equity		659,138
San Francisco [Member]
Segment Reporting Information [Line Items]
Total assets		1,366,539
Total liabilities		970,826
Total equity		395,713
Other [Member]
Segment Reporting Information [Line Items]
Total assets		286,664
Total liabilities		164,313
Total equity		$ 122,351

[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 83.0%. As of September 30, 2016, the assets and liabilities of the Operating Partnership include $1,499,909 and $976,505 of assets and liabilities, respectively, of certain VIEs that are consolidated by the Operating Partnership. See Note 12, Variable Interest Entities.