Receivable from and Payable to Brokers, Dealers and Clearing Organizations (Tables)

6 Months Ended

Jun. 30, 2013

Brokers and Dealers [Abstract]

Schedule of Amounts Receivable from and Payable to Brokers, Dealers and Clearing Organizations

Amounts receivable from and payable to brokers, dealers and clearing organizations consist of the following (in thousands):

	June 30, 2013		December 31, 2012
Receivable:
Clearing organizations and other	$	1,047,166	$	738,625
Securities failed to deliver	319,808		130,180
Total Receivable	$	1,366,974	$	868,805
Payable:
Clearing organizations and other	$	519,581	$	324,175
Securities failed to receive	116,333		54,549
Total Payable	$	635,914	$	378,724