Property and Equipment - Depreciation and Amortization (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2019	Mar. 31, 2018
Depreciation and amortization expense
Depreciation and amortization expense	$ 153,139	$ 192,972
Equipment leased to customers
Depreciation and amortization expense
Depreciation and amortization expense	109,154	110,521
Satellites
Depreciation and amortization expense
Depreciation and amortization expense	20,479	25,086
Buildings, furniture, fixtures, equipment and other
Depreciation and amortization expense
Depreciation and amortization expense	$ 23,506	$ 57,365