Property, Plant and Equipment - Table (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Dec. 31, 2022
Property, plant and equipment [Abstract]
Total property, plant and equipment	$ 1,223,135	$ 1,156,318
Less: accumulated depreciation and amortization	(483,548)	(468,765)
Property, plant and equipment, net	739,587	687,553
Land
Property, plant and equipment [Abstract]
Total property, plant and equipment	$ 3,722	3,722
Land improvements
Property, plant and equipment [Abstract]
Estimated Useful Lives	10 years
Total property, plant and equipment	$ 3,483	3,483
Buildings and structures
Property, plant and equipment [Abstract]
Total property, plant and equipment	$ 94,488	93,461
Buildings and structures | Minimum
Property, plant and equipment [Abstract]
Estimated Useful Lives	10 years
Buildings and structures | Maximum
Property, plant and equipment [Abstract]
Estimated Useful Lives	45 years
Cable and fiber
Property, plant and equipment [Abstract]
Total property, plant and equipment	$ 635,083	593,771
Cable and fiber | Minimum
Property, plant and equipment [Abstract]
Estimated Useful Lives	15 years
Cable and fiber | Maximum
Property, plant and equipment [Abstract]
Estimated Useful Lives	30 years
Equipment and software
Property, plant and equipment [Abstract]
Total property, plant and equipment	$ 324,783	317,347
Equipment and software | Minimum
Property, plant and equipment [Abstract]
Estimated Useful Lives	4 years
Equipment and software | Maximum
Property, plant and equipment [Abstract]
Estimated Useful Lives	8 years
Plant in service
Property, plant and equipment [Abstract]
Total property, plant and equipment	$ 1,061,559	1,011,784
Plant under construction
Property, plant and equipment [Abstract]
Total property, plant and equipment	$ 161,576	$ 144,534