Receivables From And Payables To Brokers, Dealers And Clearing Organizations (Tables)

3 Months Ended

Mar. 31, 2013

Receivables From And Payables To Brokers, Dealers And Clearing Organizations [Abstract]

Amounts Receivable From Brokers, Dealers, And Clearing Organizations

	March 31, 2013		December 31, 2012
Deposits paid for securities borrowed	$	333,371	$	153,819
Receivable from clearing organizations		179,442		115,996
Securities failed to deliver		15,374		6,409
	$	528,187	$	276,224

Amounts Payable To Brokers, Dealers, And Clearing Organizations

	March 31, 2013		December 31, 2012
Deposits received from securities loaned	$	65,955	$	19,218
Securities failed to receive		29,600		4,747
Payable to clearing organizations		14,392		9,246
	$	109,947	$	33,211