Debt and Other Financing Arrangements - Schedule of Debt (Details) - USD ($) $ in Millions		Dec. 31, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Current portion of long-term debt		$ 27.1	$ 45.0
Other Financing Arrangements, Current Portion		0.2	0.3
Finance lease liabilities, current		12.9	9.9
Receivables Facility		0.0	186.9
Long-term debt, less current portion		1,836.4	1,656.0
Other Financing Arrangements, Non-Current Portion		0.6	0.0
Finance lease liabilities, Noncurrent		42.1	43.1
Long-term debt gross		1,876.5	1,699.1
Net unamortized (discount) premium		(5.5)	(4.3)
Unamortized note issuance costs		(34.6)	(38.8)
Total debt		1,863.5	1,701.0
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Corporate Credit Agreement		152.5	223.0
Term B-1 Loans [Member]
Debt Instrument [Line Items]
Current portion of long-term debt		5.0	5.0
Long-term debt, less current portion		485.0	490.0
Term B-2 Loans [Member]
Debt Instrument [Line Items]
Current portion of long-term debt		6.5	6.5
Long-term debt, less current portion		630.5	637.0
Term B 3 Loan [Member]
Debt Instrument [Line Items]
Current portion of long-term debt		2.0	0.0
Long-term debt, less current portion		197.0	0.0
7.25% Notes due 2023 [Member]
Debt Instrument [Line Items]
Notes, Current	[1]	0.0	22.8
Network Receivables Facility [Member]
Debt Instrument [Line Items]
Receivables Facility		36.1	0.0
CBTS Receivable Facility [Member]
Debt Instrument [Line Items]
Receivables Facility		209.9	0.0
Various Cincinnati Bell Telephone Notes [Member]
Debt Instrument [Line Items]
Long-term debt, less current portion	[1]	95.1	96.4
Paniolo Fiber Assets [Member]
Debt Instrument [Line Items]
Financing Arrangement, Current Portion		0.5	0.5
Financing Arrangement, Noncurrent Portion		21.4	21.8
Digital Access Ohio Advance [Member]
Debt Instrument [Line Items]
Secured long-term debt, noncurrent		$ 6.3	$ 0.9

[1] As of December 31, 2023, the net carrying amount of the Various Cincinnati Bell Telephone notes included an unamortized fair value adjustment recorded on the Company's merger date, September 7, 2021, of $7.2 million. As of December 31, 2022, the net carrying amounts of the 7 1/4% Notes due 2023 and Various Cincinnati Bell Telephone notes included unamortized fair value adjustments recorded on the Company's merger date, September 7, 2021, of $0.5 million and $8.5 million, respectively. Each adjustment is being amortized over the life of the respective notes and is recorded as a reduction of interest expense.