Segment Information - Other Interest Expense, Net (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Segments Information
Other interest expense, net	$ 48,318	$ 53,377	$ 46,769
Operating Segments
Segments Information
Other interest expense, net	5,414	16,047	12,122
Corporate, Non-Segment
Segments Information
Other interest expense, net	42,904	37,330	34,647
Consumer services and plans | Operating Segments
Segments Information
Other interest expense, net	19	32	62
Retail | Operating Segments
Segments Information
Other interest expense, net	$ 5,395	$ 16,015	$ 12,060