Consolidated Statements of Financial Condition (Unaudited) (USD $) In Thousands	Jun. 30, 2011	Dec. 31, 2010
ASSETS
Cash and cash equivalents	$ 135,768	$ 124,994
Securities available-for-sale, at fair value	75,696	72,552
Accounts receivable, net of allowance of $77 and $427 as of June 30, 2011 and December 31, 2010, respectively	34,494	25,682
Deferred tax assets, net	14,296	19,813
Goodwill and intangible assets, net of accumulated amortization	35,278	36,012
Furniture, equipment, leasehold improvements and capitalized software, net of accumulated depreciation and amortization	13,409	12,545
Prepaid expenses and other assets	12,326	7,923
Total assets	321,267	299,521
Liabilities
Accrued employee compensation	11,931	17,791
Deferred revenue	4,443	4,571
Accounts payable, accrued expenses and other liabilities	12,036	12,368
Total liabilities	28,410	34,730
Commitments and Contingencies (Note 10)
Series B Preferred Stock, $0.001 par value, 35,000 shares authorized; zero and 35,000 issued and outstanding as of June 30, 2011 and December 31, 2010, respectively	0	30,315
Stockholders' equity
Preferred stock	0	0
Additional paid-in capital	332,121	340,615
Treasury stock - Common stock voting, at cost, 1,303,741 shares and 4,803,740 shares as of June 30, 2011 and December 31, 2010, respectively	(18,998)	(70,000)
Accumulated deficit	(18,692)	(34,605)
Accumulated other comprehensive loss	(1,693)	(1,651)
Total stockholders' equity	292,857	234,476
Total liabilities and stockholders' equity	321,267	299,521
Series A Preferred Stock
Stockholders' equity
Preferred stock	0	0
Common stock voting
Stockholders' equity
Common stock	110	108
Total stockholders' equity	110	108
Common stock non-voting
Stockholders' equity
Common stock	9	9
Total stockholders' equity	$ 9	$ 9