Consolidated and Combined Statements of Cash Flows - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Operating Activities
Net Income (Loss)	$ 5,108	$ (6,175)	$ 4,492
Adjustments to Reconcile Net Income (Loss) to Net Cash Provided by Operating Activities
Equity-Based Compensation Expense	89,010	38,614	66,464
Depreciation and Amortization Expense	14,026	14,760	7,773
Bad Debt Expense (Recovery)	4,132	(2,260)	882
Foreign Currency Transaction Gains	710
Deferred Taxes	2,293	(3,718)	(768)
Other Non-Cash Amounts Included in Net Income (Loss)		834	(87)
Cash Flows Due to Changes in Operating Assets and Liabilities
Accounts Receivable	(64,853)	(4,517)	(1,265)
Receivable from Affiliates		28,464	5,294
Due from Blackstone		35,042	(26,712)
Deferred Tax Assets		(66,090)
Other Assets	(429)	(12,126)	(4,149)
Accrued Compensation and Benefits	63,160	53,146	(3,533)
Accounts Payable, Accrued Expenses and Other Liabilities	(1,119)	20,556	299
Deferred Rent Liability	4,604	12,414
Deferred Tax Liability		106
Taxes Payable	(145)	512	(233)
Deferred Revenue	354	(1,097)	764
Net Cash Provided by Operating Activities	116,851	112,183	49,989
Investing Activities
Note Issued to Employee		(550)
Proceeds from Repayment of Note Issued to Employee	538
Cash from Acquisition of PJT Capital LP		12,653
Purchases of Intangible Assets		(1,337)
Purchases of Furniture, Equipment and Leasehold Improvements	(13,088)	(34,582)
Dispositions of Furniture, Equipment and Leasehold Improvements		457
Change in Restricted Cash	757	(827)
Net Cash Used in Investing Activities	(11,793)	(24,186)
Financing Activities
Dividends	(3,728)
Tax Distributions	(12,381)	(4,663)
Contributions from Former Parent		49,371
Distribution to Former Parent		(88,895)
Employee Taxes Paid for Shares Withheld	(266)
Cash-Settled Exchanges of Partnership Units	(16,054)
Principal Payments on Capital Lease Obligations	(88)	(21)
Net Decrease from Former Parent Company Investment			(41,120)
Net Cash Used in Financing Activities	(32,517)	(44,208)	(41,120)
Effect of Exchange Rate Changes on Cash and Cash Equivalents	(2,432)
Net Increase in Cash and Cash Equivalents	70,109	43,789	8,869
Cash and Cash Equivalents, Beginning of Period	82,322	38,533	29,664
Cash and Cash Equivalents, End of Period	152,431	82,322	38,533
Supplemental Disclosure of Cash Flows Information
Payments for Income Taxes, including those to Former Parent, Net of Refunds Received	6,813	3,518	$ 3,668
Supplemental Disclosure of Significant Non-Cash Activities
Non-Cash Contributions from Former Parent	8,566
Furniture, Equipment and Leasehold Improvements, Net Included in Accounts Payable, Accrued Expenses and Other Liabilities		(7,296)
Blackstone
Supplemental Disclosure of Significant Non-Cash Activities
Non-Cash Contributions from Former Parent	8,566
Accounts Receivable		1,281
Receivable from Affiliates		(16,302)
Due from Blackstone		1,475
Furniture, Equipment and Leasehold Improvements, Net		4,258
Other Assets		70
Accrued Compensation and Benefits		(10,527)
Accounts Payable, Accrued Expenses and Other Liabilities		(445)
Taxes Payable		433
Accumulated Other Comprehensive Income		(1,680)
PJT Capital LP
Supplemental Disclosure of Significant Non-Cash Activities
Accounts Receivable		(1,170)
Furniture, Equipment and Leasehold Improvements, Net		(334)
Other Assets		(362)
Intangible Assets		(13,300)
Goodwill	3,483	(6,896)
Deferred Tax Asset	$ (3,483)
Accrued Compensation and Benefits		29,424
Accounts Payable, Accrued Expenses and Other Liabilities		4,626
Taxes Payable		$ 665