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Property, Plant and Equipment (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Property, plant and equipment [Abstract]
Total property, plant and equipment	$ 1,156,318	$ 1,028,233
Less: accumulated depreciation and amortization	(468,765)	(474,071)
Property, plant and equipment, net	687,553	554,162
Land
Property, plant and equipment [Abstract]
Total property, plant and equipment	$ 3,722	3,771
Land improvements
Property, plant and equipment [Abstract]
Estimated useful lives	10 years
Total property, plant and equipment	$ 3,483	3,478
Buildings and structures
Property, plant and equipment [Abstract]
Total property, plant and equipment	$ 93,461	96,323
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	$ 593,771	453,405
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	$ 317,347	391,293
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	$ 1,011,784	948,270
Plant under construction
Property, plant and equipment [Abstract]
Total property, plant and equipment	$ 144,534	$ 79,963

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- Definition

Amount of accumulated depreciation, depletion and amortization for physical assets used in the normal conduct of business to produce goods and services.

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Amount before accumulated depreciation, depletion and amortization of physical assets used in the normal conduct of business and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment.

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