Segments Information - Other Interest Expense, Net (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Segments Information
Other interest expense, net	$ 9,404	$ 12,748
Operating Segments
Segments Information
Other interest expense, net	1,594	1,396
Corporate, Non-Segment
Segments Information
Other interest expense, net	7,810	11,352
Consumer services and plans | Operating Segments
Segments Information
Other interest expense, net	2	4
Retail | Operating Segments
Segments Information
Other interest expense, net	$ 1,592	$ 1,392