Property and Equipment and Intangible Assets - Depreciation and Amortization (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Depreciation and amortization expense
Depreciation and amortization expense	$ 172,702	$ 211,671	$ 365,674	$ 416,301
Equipment leased to customers
Depreciation and amortization expense
Depreciation and amortization expense	111,877	145,603	222,398	281,737
Satellites
Depreciation and amortization expense
Depreciation and amortization expense	25,086	29,414	50,172	58,426
Buildings, furniture, fixtures, equipment and other
Depreciation and amortization expense
Depreciation and amortization expense	$ 35,739	$ 36,654	$ 93,104	$ 76,138