AutoMatch Distribution (Details) - CWGS Enterprises, LLC and Subsidiaries - CWGS Enterprises, LLC and Subsidiaries - USD ($) $ in Thousands					9 Months Ended
	Sep. 21, 2016	Sep. 07, 2016	Jun. 17, 2016	Jun. 13, 2016	Sep. 30, 2016	Sep. 30, 2015
Membership units
Non-cash distribution declared					$ 38,838
Cash distribution declared					197,782
Cash distribution to members	$ 100,000				$ 214,782	$ 206,139
AutoMatch Distribution
Membership units
Distribution declared				$ 42,700
Non-cash distribution declared				38,800
Cash distribution declared		$ 1,600		$ 3,800
Cash distribution to members		$ 200	$ 3,600
Transition service agreement period (in days)				120 days