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Intangible Assets - Narrative (Details)
 3 Months Ended
Jun. 30, 2022
USD ($)
county
channel
Mar. 31, 2022
USD ($)
Acquired Indefinite-lived Intangible Assets [Line Items]    
Impairment $ 0  
Broadband Licenses Granted, Channels To Surrender | channel 240  
Broadband licenses granted, number of counties | county 11  
Initial deposits $ 10,700,000 $ 8,000,000
Prepaid expenses and other current assets 11,880,000 10,147,000
Other assets 4,786,000 4,108,000
Gain (loss) from disposal of intangible assets, net 600,000  
In-Process Deals    
Acquired Indefinite-lived Intangible Assets [Line Items]    
Prepaid expense and other assets 4,300,000 3,400,000
Prepaid expenses and other current assets 400,000 200,000
Other assets 3,900,000 3,100,000
Wireless Licenses    
Acquired Indefinite-lived Intangible Assets [Line Items]    
Consideration transferred 3,100,000  
Wireless Licenses | Third Parties    
Acquired Indefinite-lived Intangible Assets [Line Items]    
Consideration transferred 2,900,000  
Wireless Licenses | Anti-Windfall    
Acquired Indefinite-lived Intangible Assets [Line Items]    
Consideration transferred 200,000  
Prepaid Expenses and Other Current Assets    
Acquired Indefinite-lived Intangible Assets [Line Items]    
Initial deposits 10,300,000 7,600,000
Other Assets    
Acquired Indefinite-lived Intangible Assets [Line Items]    
Initial deposits 400,000 $ 400,000
New Wireless Licenses    
Acquired Indefinite-lived Intangible Assets [Line Items]    
Indefinite-lived intangible assets fair value disclosure 900,000  
Narrowband Licenses    
Acquired Indefinite-lived Intangible Assets [Line Items]    
Amount disposed $ 200,000