Net Income (Loss) Per Share of Class A Common Stock (Tables)

12 Months Ended

Dec. 31, 2019

Earnings Per Share [Abstract]

Schedule of Net Income (Loss) Per Share of Class A Common Stock

Basic and diluted net income (loss) per share of Class A common stock for the years ended December 31, 2019, 2018 and 2017 is presented below:

	Year Ended December 31,
	2019		2018		2017
Numerator:
Net Income (Loss) Attributable to PJT Partners Inc.	$	29,562	$	27,170	$	(32,554	)
Less:
Dividends on Participating Securities		20		128		88
Net Income Attributable to Participating Securities		34		143		—
Net Income (Loss) Attributable to Shares of Class A    Common Stock — Basic		29,508		26,899		(32,642	)
Incremental Net Income from Dilutive Securities		879		1,325		—
Net Income (Loss) Attributable to Shares of Class A    Common Stock — Diluted	$	30,387	$	28,224	$	(32,642	)
Denominator:
Weighted-Average Shares of Class A Common    Stock Outstanding — Basic		24,007,138		21,879,574		18,858,010
Weighted-Average Number of Incremental Shares from    Unvested RSUs		1,007,431		2,374,487	(a)
Weighted-Average Shares of Class A Common    Stock Outstanding — Diluted		25,014,569		24,254,061		18,858,010
Net Income (Loss) Per Share of Class A Common Stock
Basic	$	1.23	$	1.23	$	(1.73	)
Diluted	$	1.21	$	1.16	$	(1.73	)

(a) These securities were determined to be anti-dilutive and therefore were excluded from the calculation of net income (loss) per share of Class A common stock.

Summary of Anti-Dilutive Securities

The following table summarizes the anti-dilutive securities for the years ended December 31, 2019, 2018 and 2017:

	Year Ended December 31,
	2019		2018		2017
Weighted-Average Unvested RSUs	(a)		(a)			3,767,622
Weighted-Average Participating RSUs		40,544		139,519		450,718
Weighted-Average Partnership Units		15,912,203		15,673,976		14,972,302

(a) These securities were determined to be dilutive.