Summary of Significant Accounting Policies - Property and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Property, Plant and Equipment [Line Items]
Property Plant and Equipment, Gross	$ 146,054	$ 144,719
Accumulated depreciation	(92,856)	(91,375)
Net property and equipment	53,198	53,344
Land and Land Improvements
Property, Plant and Equipment [Line Items]
Property Plant and Equipment, Gross	15,259	14,638
Building
Property, Plant and Equipment [Line Items]
Property Plant and Equipment, Gross	$ 40,823	38,225
Estimated Useful Life	31 years 6 months
Towers And Antennae
Property, Plant and Equipment [Line Items]
Property Plant and Equipment, Gross	$ 26,992	25,918
Towers And Antennae | Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Life	7 years
Towers And Antennae | Maximum
Property, Plant and Equipment [Line Items]
Estimated Useful Life	15 years
Equipment
Property, Plant and Equipment [Line Items]
Property Plant and Equipment, Gross	$ 52,459	55,955
Equipment | Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Life	3 years
Equipment | Maximum
Property, Plant and Equipment [Line Items]
Estimated Useful Life	15 years
Furniture and Fixtures
Property, Plant and Equipment [Line Items]
Property Plant and Equipment, Gross	$ 7,741	7,129
Furniture and Fixtures | Minimum
Property, Plant and Equipment [Line Items]
Estimated Useful Life	7 years
Furniture and Fixtures | Maximum
Property, Plant and Equipment [Line Items]
Estimated Useful Life	20 years
Vehicles
Property, Plant and Equipment [Line Items]
Property Plant and Equipment, Gross	$ 2,780	$ 2,854
Estimated Useful Life	5 years