Receivables from and Payables to Broker-Dealers, Clearing Organizations, Customers and Related Broker-Dealers (Tables)

6 Months Ended

Jun. 30, 2018

Brokers And Dealers [Abstract]

Receivables from and Payables to Broker-Dealers, Clearing Organizations, Customers and Related Broker-Dealers

As of June 30, 2018 and December 31, 2017, Receivables from and payables to broker-dealers, clearing organizations, customers and related broker-dealers consisted of the following (in thousands):

	June 30, 2018		December 31, 2017
Receivables from broker-dealers, clearing organizations,    customers and related broker-dealers:
Contract values of fails to deliver	$	1,459,054	$	586,486
Receivables from clearing organizations		207,215		133,682
Other receivables from broker-dealers and customers		8,557		10,968
Net pending trades		4,905		1,597
Open derivative contracts		51,557		12,669
Total	$	1,731,288	$	745,402
Payables to broker-dealers, clearing organizations, customers    and related broker-dealers:
Contract values of fails to receive	$	1,416,572	$	567,460
Payables to clearing organizations		34,863		14,023
Other payables to broker-dealers and customers		13,351		18,164
Open derivative contracts		52,148		7,933
Total	$	1,516,934	$	607,580