Consolidated and Combined Statements of Operations - USD ($)	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Revenues
Advisory Fees	$ 377,610,000	$ 286,014,000	$ 271,278,000
Placement Fees	114,968,000	114,058,000	127,664,000
Interest Income and Other	6,852,000	5,866,000	2,127,000
Total Revenues	499,430,000	405,938,000	401,069,000
Expenses
Compensation and Benefits	381,000,000	315,195,000	317,478,000
Occupancy and Related	25,815,000	32,682,000	25,601,000
Travel and Related	11,480,000	14,082,000	13,382,000
Professional Fees	18,925,000	19,814,000	10,837,000
Communications and Information Services	8,875,000	7,622,000	7,048,000
Depreciation and Amortization	14,026,000	14,872,000	7,773,000
Other Expenses	24,809,000	7,607,000	11,412,000
Total Expenses	484,930,000	411,874,000	393,531,000
Income (Loss) Before Provision for Taxes	14,500,000	(5,936,000)	7,538,000
Provision for Taxes	9,392,000	239,000	3,046,000
Net Income (Loss)	5,108,000	(6,175,000)	4,492,000
Net Income (Loss) Attributable to Redeemable Non-Controlling Interests	8,142,000	(13,751,000)
Net Income (Loss) Attributable to PJT Partners Inc.	$ (3,034,000)	7,576,000	4,492,000
Class A Common Stock
Net Loss Per Share of Class A Common Stock
Net Loss Per Share of Class A Common Stock — Basic and Diluted	$ (0.17)
Weighted-Average Shares of Class A Common Stock Outstanding — Basic and Diluted	18,292,717
Affiliates
Revenues
Advisory Fees	$ 0	4,220,000	31,948,000
Placement Fees	$ 0	$ 14,329,000	$ 14,911,000