CONSOLIDATED STATEMENTS OF FINANCIAL CONDITION (USD $) In Thousands, unless otherwise specified	Dec. 31, 2011	Dec. 31, 2010
Assets
Cash and cash equivalents	$ 36,672	$ 40,009
Cash and securities segregated for regulatory and other purposes	9,612	100
Securities purchased under agreements to resell	1,523,227	86,484
Receivables from:
Brokers, dealers and clearing organizations	58,776	25,721
Related parties	1,337	2,245
Others	16,161	18,283
Financial instruments owned, at fair value (includes financial instruments pledged of $1,553,610 and $1,280,443 at December 31, 2011 and 2010, respectively)	1,554,660	1,281,243
Investments	18,310	18,084
Office equipment and leasehold improvements, net	6,735	6,653
Goodwill	21,096	105,694
Intangible assets	4,311	15,565
Income taxes receivable	12,102	14,782
Deferred tax assets, net	30,766	34,154
Other assets	9,791	8,915
Total Assets	3,303,556	1,657,932
Payables to:
Brokers, dealers and clearing organizations	1,108,664	1,101,440
Related parties	4,939	4,986
Others	3,243	2,347
Securities sold under agreements to repurchase	1,478,081
Securities sold, but not yet purchased, at fair value	184,996	112,275
Secured borrowings	213,611
Accrued compensation	26,274	74,202
Accounts payable and accrued expenses	18,223	8,756
Income taxes payable	3,979	3,468
Deferred tax liabilities	1,622	3,390
Subordinated debt	801	909
Total Liabilities	3,044,433	1,311,773
Commitments and Contingencies (Refer to Note 19)
Stockholders' Equity
Common stock; $.01 par value; authorized 200,000,000 shares, issued 133,714,786 and 131,457,586 shares; and outstanding 120,883,601 and 130,809,868 shares, at December 31, 2011 and 2010, respectively	1,337	1,315
Additional paid-in capital	463,497	449,754
Deferred compensation	161	276
Accumulated deficit	(185,887)	(103,763)
Treasury stock, at cost (12,831,185 shares and 647,718 shares, at December 31, 2011 and December 31, 2010, respectively)	(19,985)	(1,423)
Total Stockholders' Equity	259,123	346,159
Total Liabilities and Stockholders' Equity	$ 3,303,556	$ 1,657,932