Mergers and Acquisitions - Narratives (Details)					3 Months Ended						4 Months Ended	8 Months Ended	12 Months Ended
	Apr. 17, 2023 USD ($)	May 02, 2022 USD ($)	Sep. 07, 2021 USD ($) $ / shares	Aug. 31, 2021 USD ($) mi	Sep. 30, 2023 USD ($)	Jun. 30, 2023 USD ($)	Mar. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)	Sep. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2021 USD ($)	Sep. 07, 2021 USD ($) $ / shares	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Business Acquisition [Line Items]
Transaction and integration costs											$ 800,000	$ 54,800,000	$ 2,900,000	$ 11,300,000
Loss on extinguishment of debt										$ 2,100,000	2,100,000	$ 10,700,000	0	0
Restricted cash included in Other noncurrent assets								$ 3,500,000		500,000	500,000		3,400,000	3,500,000
Goodwill								723,500,000		$ 646,300,000	646,300,000		721,000,000	723,500,000
Red Fiber Parent L L C
Business Acquisition [Line Items]
Gross value of acquisition			$ 3,100,000,000
Debt assumed			$ 1,357,100,000
Business Acquisition, Share Price | $ / shares			$ 15.50									$ 15.50
Preferred stock redemption percentage			6.75%
Preferred stock redemption price per Depositary Share | $ / shares			$ 50									$ 50
Preferred stock redemption preference per redemption percentage			$ 1,000									$ 1,000
Preferred Stock, Dividend Rate, Percentage			6.75%
Cincinnati Bell Inc. [Member]
Business Acquisition [Line Items]
Business Acquisition, Share Price | $ / shares			$ 15.50									$ 15.50
Increase to deferred income tax liability									$ 4,300,000
Transaction and integration costs			$ 44,000,000.0								800,000	$ 54,600,000	0	1,200,000
Severance Costs												2,900,000
Transaction-related bonuses												5,300,000
Loss on extinguishment of debt												10,700,000
Aggregate purchase price			1,620,700,000
Current portion of long-term debt			11,800,000									11,800,000
Long-term debt, less current portion			1,378,000,000									1,378,000,000
Goodwill			651,000,000									651,000,000
Cincinnati Bell Inc. [Member] | SG&A [Member]
Business Acquisition [Line Items]
Incremental stock-based compensation expense			$ 9,300,000									9,300,000
Paniolo Acquisition [Member]
Business Acquisition [Line Items]
Gross value of acquisition				$ 29,300,000
Aggregate purchase price				52,300,000
Business combination committed purchase money financing				$ 23,000,000.0
Current portion of long-term debt								500,000					500,000	500,000
Long-term debt, less current portion								21,800,000					21,400,000	21,800,000
Paniolo Acquisition [Member] | Minimum [Member]
Business Acquisition [Line Items]
Fiber route miles | mi				400
Agile IWG Holdings, LLC [Member]
Business Acquisition [Line Items]
Gross value of acquisition		$ 65,500,000
Transaction and integration costs											$ 0	$ 0	$ 300,000	$ 2,100,000
Aggregate purchase price									65,500,000
Addition to working capital adjustment									$ 400,000
Goodwill		$ 35,000,000
Increase (decrease) in goodwill and deferred income tax liability						$ 4,400,000		$ 4,400,000
Bridgewired, LLC [Member]
Business Acquisition [Line Items]
Gross value of acquisition					$ 5,900,000
Aggregate purchase price					6,700,000
Contingent consideration					$ 800,000
Ohio Transparent Telecom Inc. [Member]
Business Acquisition [Line Items]
Gross value of acquisition	$ 3,200,000
Aggregate purchase price	3,300,000
Contingent consideration	$ 100,000
Ownership percentage acquired	100.00%
Goodwill	$ 1,100,000
Lawrenceburg Fiber Assets [Member]
Business Acquisition [Line Items]
Gross value of acquisition							$ 2,700,000
Aggregate purchase price							3,000,000
Contingent consideration							$ 300,000