Long-Term Debt and Finance Lease Obligations - Other Long-Term Debt and Finance Lease Obligations (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Other long-term debt and capital lease obligations
Total	$ 299,983	$ 304,145
Less current portion	(85,620)	(71,366)
Other long-term debt and capital lease obligations, net of current portion	$ 214,363	232,779
Interest rate (as a percent)	7.75%
Satellites and other finance lease obligations
Other long-term debt and capital lease obligations
Total	$ 162,174	233,199
Notes payable related to satellite vendor financing and other debt payable in installments through 2032 with interest rates ranging from approximately 4.0% to 8.8%
Other long-term debt and capital lease obligations
Total	$ 137,809	$ 70,946
Notes payable related to satellite vendor financing and other debt payable in installments through 2032 with interest rates ranging from approximately 4.0% to 8.8% | Minimum
Other long-term debt and capital lease obligations
Interest rate (as a percent)	4.00%
Notes payable related to satellite vendor financing and other debt payable in installments through 2032 with interest rates ranging from approximately 4.0% to 8.8% | Maximum
Other long-term debt and capital lease obligations
Interest rate (as a percent)	8.80%