Consolidated Statements of Financial Condition (Unaudited) (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
ASSETS
Cash and cash equivalents	$ 129,595	$ 169,620
Securities available-for-sale, at fair value	58,592	78,110
Accounts receivable, net of allowance of $406 and $1,086 as of June 30, 2012 and December 31, 2011, respectively	33,209	36,170
Deferred tax assets, net	5,822	8,089
Goodwill and intangible assets, net of accumulated amortization	33,835	34,544
Furniture, equipment, leasehold improvements and capitalized software, net of accumulated depreciation and amortization	14,960	14,460
Prepaid expenses and other assets	13,715	8,465
Total assets	289,728	349,458
Liabilities
Accrued employee compensation	10,503	19,425
Deferred revenue	5,126	5,326
Accounts payable, accrued expenses and other liabilities	12,364	12,268
Total liabilities	27,993	37,019
Commitments and Contingencies (Note 10)
Stockholders' equity
Preferred stock
Additional paid-in capital	275,061	340,716
Treasury stock - Common stock voting, at cost, 1,360,711 shares and 1,541,739 shares as of June 30, 2012 and December 31, 2011, respectively	(28,283)	(25,933)
Retained earnings (deficit)	17,256	(584)
Accumulated other comprehensive loss	(2,417)	(1,882)
Total stockholders' equity	261,735	312,439
Total liabilities and stockholders' equity	289,728	349,458
Series A Preferred Stock
Stockholders' equity
Preferred stock
Common Stock Voting
Stockholders' equity
Common stock	118	113
Total stockholders' equity	118	113
Common Stock Non-Voting
Stockholders' equity
Common stock		9
Total stockholders' equity	$ 0	$ 9