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

12 Months Ended

Dec. 31, 2014

Brokers and Dealers [Abstract]

Receivable from and Payable to Brokers, Dealers and Clearing Organizations

(Expressed in thousands)
	As of December 31,
	2014		2013
Receivable from brokers, dealers and clearing organizations consist of:
Securities borrowed	$	242,172	$	274,127
Receivable from brokers	38,149		23,384
Securities failed to deliver	11,055		9,628
Clearing organizations	21,106		26,446
Omnibus accounts	—		18,086
Other	1,993		13,202
Total	$	314,475	$	364,873
Payable to brokers, dealers and clearing organizations consist of:
Securities loaned	$	137,892	$	211,621
Securities failed to receive	23,573		5,346
Clearing organizations and other	95,696		6,348
Total	$	257,161	$	223,315