Property and Equipment (Schedule of Equipment Under Finance Leases) (Details) - USD ($) $ in Thousands	Dec. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Net amount of equipment and related accumulated amortization recorded under finance leases	$ 12,080	$ 13,179
Satellite equipment
Property, Plant and Equipment [Line Items]
Satellite equipment	41,134	41,228
Less accumulated amortization	(29,054)	(28,049)
Net amount of equipment and related accumulated amortization recorded under finance leases	$ 12,080	$ 13,179