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Other Assets and Accrued Liabilities - Current Assets (Details) - USD ($)
$ in Thousands
Dec. 31, 2022
Dec. 31, 2021
Other Liabilities Disclosure [Abstract]    
Deposit for FCC spectrum licenses $ 0 $ 16,118
Prepaid maintenance expenses 7,444 8,391
Broadband contract acquisition costs 2,809 2,502
SERP investments 0 801
Other 1,256 2,018
Prepaid expenses and other $ 11,509 $ 29,830