CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (Parenthetical) - USD ($) $ in Thousands		Mar. 31, 2018	Dec. 31, 2017
ASSETS
Cash	[1]	$ 27,347	$ 63,414
Due from Broker	[1]	1,410	1,875
Marketable Securities	[1]	4,990	5,452
Equity Method Investments		16,107	16,285
Other Receivables	[1]	142	132
Property and equipment, accumulated depreciation		3,313	3,063
LIABILITIES AND EQUITY
Accounts Payable and Accrued Expenses	[1]	14,850	31,983
Due to Broker	[1]	$ 1,165	$ 144
Equity:
Preferred Stock, Par Value (in dollars per share)		$ 0.01	$ 0.01
Preferred Stock, Shares Authorized (in shares)		200,000,000	200,000,000
Preferred Stock, Shares Outstanding (in shares)		0	0
Common Class A
Equity:
Common Stock, Par Value (in dollars per share)		$ 0.01	$ 0.01
Common Stock, Shares Authorized (in shares)		750,000,000	750,000,000
Common Stock, Shares Issued (in shares)		17,813,424	18,096,554
Common Stock, Shares Outstanding (in shares)		17,813,424	18,096,554
Common Class B
Equity:
Common Stock, Par Value (in dollars per share)		$ 0.000001	$ 0.000001
Common Stock, Shares Authorized (in shares)		750,000,000	750,000,000
Common Stock, Shares Issued (in shares)		51,033,459	50,709,673
Common Stock, Shares Outstanding (in shares)		51,033,459	50,709,673
Variable Interest Entity, Primary Beneficiary
ASSETS
Cash		$ 3,517	$ 3,717
Due from Broker		1,410	1,485
Marketable Securities		3,195	3,589
Equity Method Investments		331	338
Other Receivables		18	15
LIABILITIES AND EQUITY
Accounts Payable and Accrued Expenses		17	14
Due to Broker		$ 1,004	$ 0

[1] Asset and liability amounts in parentheses represent the aggregated balances at March 31, 2018 and December 31, 2017 attributable to Pzena International Value Service (a series of Pzena Investment Management International, LLC), Pzena Investment Management Special Situations, LLC, and Pzena U.S. Best Ideas (GP), LLC, which were variable interest entities as of March 31, 2018 and December 31, 2017, respectively.