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Goodwill and Intangible Assets - Narrative (Details) - USD ($)
$ in Thousands
3 Months Ended 12 Months Ended
Sep. 30, 2022
Sep. 30, 2020
Dec. 31, 2022
Dec. 31, 2021
Dec. 31, 2020
Business Acquisition [Line Items]          
Amortization expense     $ 700 $ 800 $ 700
Refund received (cash disbursed) for deposit on FCC spectrum leases     $ 3,996 0 $ (16,118)
Spectrum Purchase Agreements | Disposal Group, Held-for-sale, Not Discontinued Operations          
Business Acquisition [Line Items]          
Indefinite-lived license       13,800  
Finite-lived license       5,900  
Operating lease liabilities       $ 3,800  
FCC spectrum licenses          
Business Acquisition [Line Items]          
Indefinite-lived intangible assets acquired $ 12,100 $ 16,100