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

12 Months Ended

Dec. 31, 2016

Brokers and Dealers [Abstract]

Receivable from and Payable to Brokers, Dealers and Clearing Organizations

(Expressed in thousands)
	As of December 31,
	2016		2015
Receivable from brokers, dealers and clearing organizations consist of:
Securities borrowed	$	154,090	$	224,672
Receivable from brokers	25,768		49,458
Securities failed to deliver	6,172		7,799
Clearing organizations	26,081		25,030
Other	2,823		58,832
Total	$	214,934	$	365,791
Payable to brokers, dealers and clearing organizations consist of:
Securities loaned	$	179,875	$	130,658
Payable to brokers	610		3,316
Securities failed to receive	11,523		21,513
Other	29,381		9,059
Total	$	221,389	$	164,546