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Regulatory Authorizations - Narrative (Details) - USD ($)
$ in Thousands
1 Months Ended 12 Months Ended
Nov. 30, 2019
Oct. 31, 2019
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Finite-Lived Intangible Assets [Line Items]          
Terrestrial rights granted $ 7,900       $ 12,833
Amortization period 11 years        
Acquisition of spectrum rights $ 4,500        
Indefinite-lived intangible assets acquired   $ 39,500      
Payments to acquire intangible assets   $ 26,500 $ 0 $ 0 $ 34,447
Licensing Agreements          
Finite-Lived Intangible Assets [Line Items]          
Amortization period 15 years