UNAUDITED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Thousands		3 Months Ended		6 Months Ended
		Jun. 30, 2019	Jun. 30, 2018	Jun. 30, 2019	Jun. 30, 2018
Income Statement [Abstract]
REVENUE		$ 37,843	$ 38,348	$ 75,253	$ 77,600
EXPENSES
Compensation and Benefits Expense		16,019	15,224	33,208	31,398
General and Administrative Expense		4,254	3,379	8,281	6,534
Total Operating Expenses		20,273	18,603	41,489	37,932
Operating Income		17,570	19,745	33,764	39,668
OTHER INCOME
Interest Income		192	86	409	148
Dividend Income		168	39	230	75
Net Realized and Unrealized (Losses)/ Gains from Investments		(18)	(179)	819	(213)
Equity in Earnings/ (Losses) of Affiliates		263	(148)	1,021	(277)
Other (Expense)/ Income		(44)	(10)	(99)	5
Total Other Income/ (Expense)		561	(212)	2,380	(262)
Income Before Income Taxes		18,131	19,533	36,144	39,406
Income Tax Expense		1,836	2,176	3,907	4,383
Net Income		16,295	17,357	32,237	35,023
Less: Net Income Attributable to Non-Controlling Interests		12,931	13,885	25,771	28,028
Net Income Attributable to Pzena Investment Management, Inc.		3,364	3,472	6,466	6,995
Net Income for Basic Earnings per Share		$ 3,364	$ 3,472	$ 6,466	$ 6,995
Basic Earnings per Share		$ 0.19	$ 0.20	$ 0.36	$ 0.39
Basic Weighted Average Shares Outstanding	[1]	17,874,842	17,759,396	18,075,692	17,886,675
Net Income for Diluted Earnings per Share		$ 13,218	$ 14,020	$ 26,026	$ 28,248
Diluted Earnings per Share		$ 0.18	$ 0.20	$ 0.35	$ 0.39
Diluted Weighted Average Shares Outstanding	[1]	74,153,408	71,773,989	74,212,207	72,045,221
Cash Dividends per Share of Class A Common Stock		$ 0.03	$ 0.03	$ 0.52	$ 0.45

[1] The Company issues restricted shares of Class A common stock and restricted Class B units that have non-forfeitable dividend rights. Under the "two-class method," these shares and units are considered participating securities and are required to be included in the computation of basic and diluted earnings per share.