SUPPLEMENTAL FINANCIAL INFORMATION - Accrued Expenses and Other Current Liabilities and Other Non-Current Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Accrued expenses and other current liabilities:
Accrued compensation	$ 48,726	$ 56,337
Operating lease obligation	17,757	17,854
Accrued interest	15,631	39,245
Accrued taxes	13,376	12,603
Accrual for license fee dispute	10,273	10,191
In-orbit incentive obligations	4,331	5,369
Trade accounts payable - DISH Network	555	669
Other	52,460	57,585
Total accrued expenses and other current liabilities	163,109	199,853
Other non-current liabilities:
Accrual for license fee dispute	48,760	57,292
In-orbit incentive obligations	44,041	44,836
Contract liabilities	7,872	8,326
Other	11,861	9,333
Total other non-current liabilities	$ 112,534	$ 119,787
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Total accrued expenses and other current liabilities	Total accrued expenses and other current liabilities