Goodwill and Intangible Assets - Schedule of Changes in Carrying Amount of Goodwill (Details) - USD ($) $ in Thousands		12 Months Ended
		Dec. 31, 2016	Dec. 31, 2015
Goodwill And Intangible Assets Disclosure [Abstract]
Balance, Beginning of Year		$ 75,769	$ 68,873
Goodwill Acquired	[1]		6,896
Measurement Period Adjustment	[2]	(3,483)
Balance, End of Year		$ 72,286	$ 75,769

[1] The change in carrying amount of goodwill was the result of the business combination disclosed in Note 4. “Business Combinations.”

[2] During the year ended December 31, 2016, the Company recorded a $3.5 million measurement period adjustment related to the acquisition of PJT Capital LP.