CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (USD $) In Thousands, unless otherwise specified	Jun. 30, 2012	Dec. 31, 2011
Assets
Cash and cash equivalents	$ 52,733	$ 36,672
Cash and securities segregated for regulatory and other purposes	1,150	9,612
Securities purchased under agreements to resell	1,879,740	1,523,227
Receivables from:
Brokers, dealers and clearing organizations	31,582	58,776
Related parties	1,362	1,337
Others	16,218	16,161
Financial instruments owned, at fair value (includes financial instruments pledged of $762,817 and $1,553,610 at June 30, 2012 and December 31, 2011, respectively)	763,550	1,554,660
Investments	19,090	18,310
Office equipment and leasehold improvements, net	6,164	6,735
Goodwill		21,096
Intangible assets	4,064	4,311
Income taxes receivable	4,623	12,102
Deferred tax assets, net	581	30,766
Other assets	9,896	9,791
Total Assets	2,790,753	3,303,556
Payables to:
Brokers, dealers and clearing organizations	500,882	1,108,664
Related parties	594	4,939
Others	3,676	3,243
Securities sold under agreements to repurchase	1,904,807	1,478,081
Securities sold, but not yet purchased, at fair value	110,333	184,996
Secured borrowings	46,718	213,611
Accrued compensation	15,540	26,274
Accounts payable and accrued expenses	11,536	18,223
Income taxes payable	3,770	3,979
Deferred tax liabilities		1,622
Subordinated debt	595	801
Total Liabilities	2,598,451	3,044,433
Commitments and Contingencies (Refer to Note 16)
Stockholders' Equity
Common stock; $.01 par value; authorized 200,000,000 shares, issued 133,769,219 and 133,714,786 shares; and outstanding 125,731,141 and 120,883,601 shares, at June 30, 2012 and December 31, 2011, respectively	1,337	1,337
Additional paid-in capital	452,299	463,497
Deferred compensation	124	161
Accumulated deficit	(251,403)	(185,887)
Treasury stock, at cost (8,038,078 shares and 12,831,185 shares, at June 30, 2012 and December 31, 2011, respectively)	(10,055)	(19,985)
Total Stockholders' Equity	192,302	259,123
Total Liabilities and Stockholders' Equity	$ 2,790,753	$ 3,303,556