CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (Unaudited) (Parenthetical) (USD $) In Thousands, except Share data, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
ASSETS
Deferred Tax Asset, Valuation Allowance	$ 60,427	$ 61,050
Property and Equipment, Accumulated Depreciation	$ 2,593	$ 2,516
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
Class A [Member]
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)	10,546,635	10,575,089
Common Stock, Shares Outstanding (in shares)	10,546,635	10,575,089
Class B [Member]
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)	54,051,326	53,967,555
Common Stock, Shares Outstanding (in shares)	54,051,326	53,967,555