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Basis of Presentation and Summary of Significant Accounting Policies Radio Conversion Costs (Details)
number in Thousands
12 Months Ended
Jun. 30, 2019
USD ($)
Dec. 31, 2022
USD ($)
Dec. 31, 2020
USD ($)
Dec. 31, 2019
USD ($)
Subsequent Event [Line Items]        
Radio Conversion Number of Customer Sites Using 3G or CDMA 3,600      
Radio Conversion Cost Per Site $ 90      
Scenario, Forecast [Member] | Minimum [Member]        
Subsequent Event [Line Items]        
Radio Conversion Cost     $ 200,000,000 $ 25,000,000
Scenario, Forecast [Member] | Maximum [Member]        
Subsequent Event [Line Items]        
Radio Conversion Cost   $ 325,000,000   $ 35,000,000