Segment Information (Restated) - Assets (Details) - USD ($) $ in Thousands	Sep. 30, 2017	Dec. 31, 2016
Segments Information
Assets	$ 2,233,379	$ 1,455,777
Operating Segments
Segments Information
Assets	2,016,456	1,381,396
Corporate, Non-Segment
Segments Information
Assets	216,923	74,381
Consumer services and plans | Operating Segments
Segments Information
Assets	122,273	152,689
Retail | Operating Segments
Segments Information
Assets	$ 1,894,183	$ 1,228,707