Long-Term Debt and Capital Lease Obligations - Other Long-Term Debt and Capital Lease Obligations (Details) - USD ($) $ in Thousands	Dec. 31, 2018	Dec. 31, 2017
Other long-term debt and capital lease obligations
Total	$ 106,699	$ 149,246
Less current portion	(24,621)	(42,663)
Other long-term debt and capital lease obligations, net of current portion	$ 82,078	106,583
Interest rate (as a percent)	7.75%
Capital lease obligations [Member]
Other long-term debt and capital lease obligations
Total	$ 66,984	104,318
Notes payable related to satellite vendor financing and other debt payable in installments through 2025 with interest rates ranging from approximately 1.9% to 12.5%
Other long-term debt and capital lease obligations
Total	$ 39,715	$ 44,928
Notes payable related to satellite vendor financing and other debt payable in installments through 2025 with interest rates ranging from approximately 1.9% to 12.5% | Minimum
Other long-term debt and capital lease obligations
Interest rate (as a percent)	1.90%
Notes payable related to satellite vendor financing and other debt payable in installments through 2025 with interest rates ranging from approximately 1.9% to 12.5% | Maximum
Other long-term debt and capital lease obligations
Interest rate (as a percent)	8.80%