Property and Equipment - Depreciation and Amortization (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Depreciation and amortization expense
Depreciation and amortization expense	$ 712,024	$ 817,564	$ 921,202
Equipment leased to customers
Depreciation and amortization expense
Depreciation and amortization expense	444,928	554,272	674,445
Satellites
Depreciation and amortization expense
Depreciation and amortization expense	100,343	114,821	96,965
Buildings, furniture, fixtures, equipment and other
Depreciation and amortization expense
Depreciation and amortization expense	$ 166,753	$ 148,471	$ 149,792