UNAUDITED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Statement Of Income And Comprehensive Income [Abstract]
NET INCOME	$ 15,942	$ 17,666
OTHER COMPREHENSIVE GAIN
Foreign Currency Translation Adjustment	63	68
Total Other Comprehensive Gain	63	68
Comprehensive Income	16,005	17,734
Less: Comprehensive Income Attributable to Non-Controlling Interests	12,920	14,229
Total Comprehensive Income Attributable to Pzena Investment Management, Inc.	$ 3,085	$ 3,505