Document and Entity Information - USD ($)	12 Months Ended
	Dec. 31, 2016	Jan. 27, 2017	Jun. 30, 2016
Document And Entity Information [Abstract]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Dec. 31, 2016
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	FY
Trading Symbol	PGRE
Entity Registrant Name	PARAMOUNT GROUP, INC.
Entity Central Index Key	0001605607
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Well Known Seasoned Issuer	Yes
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Common Stock, Shares Outstanding		230,668,694
Entity Public Float			$ 2,963,821,000