Property and Equipment - Satellite Breakdown (Details) - USD ($) $ in Thousands	9 Months Ended
	Sep. 30, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Property and equipment, net	$ 2,372,594	$ 2,528,738
Satellites - owned
Property, Plant and Equipment [Line Items]
Total property and equipment	1,800,735	1,816,303
Accumulated depreciation	(856,787)	(756,635)
Satellites
Property, Plant and Equipment [Line Items]
Property, plant and equipment and finance leases, before accumulated depreciation	2,536,399	2,562,599
Accumulated depreciation	(922,934)	(813,023)
Property and equipment, net	$ 1,613,465	1,749,576
Satellites - acquired under finance leases
Property, Plant and Equipment [Line Items]
Depreciable Life (In Years)	15 years
Finance leases	$ 344,376	381,163
Accumulated depreciation	(66,147)	(56,388)
Construction in progress
Property, Plant and Equipment [Line Items]
Total property and equipment	$ 391,288	$ 365,133
Maximum | Satellites
Property, Plant and Equipment [Line Items]
Depreciable Life (In Years)	15 years
Minimum | Satellites
Property, Plant and Equipment [Line Items]
Depreciable Life (In Years)	7 years