Cincinnati Bell (BDWGP) 10-K 25 Mar 24 2023 FY Annual report Financial data

Document and Entity Information

Document and Entity Information	12 Months Ended
	Dec. 31, 2023 shares
Class of Stock [Line Items]
Entity Registrant Name	CINCINNATI BELL INC.
Entity Central Index Key	0000716133
Entity Current Reporting Status	No
Entity Interactive Data Current	Yes
Current Fiscal Year End Date	--12-31
Entity Filer Category	Non-accelerated Filer
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Small Business	false
Document Type	10-K
Document Period End Date	Dec. 31, 2023
Document Fiscal Year Focus	2023
Document Fiscal Period Focus	FY
Amendment Flag	false
Entity Common Stock, Shares Outstanding	100
Entity Well-known Seasoned Issuer	No
Entity Voluntary Filers	Yes
Entity File Number	1-8519
Entity Tax Identification Number	31-1056105
Entity Address, Address Line One	221 East Fourth Street
Entity Address, City or Town	Cincinnati
Entity Address, State or Province	OH
Entity Address, Postal Zip Code	45202
Document Financial Statement Error Correction [Flag]	false
City Area Code	513
Local Phone Number	397-9900
Entity Incorporation, State or Country Code	OH
Document Annual Report	true
Document Transition Report	false
ICFR Auditor Attestation Flag	true
Auditor Firm ID	238
Auditor Name	PricewaterhouseCoopers LLP
Auditor Location	Cincinnati, Ohio

Consolidated Balance Sheets

Consolidated Balance Sheets - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Current assets
Cash and cash equivalents	$ 9.1	$ 9.4
Receivables, less allowances of $17.7 and $12.0	495	447.8
Inventory, materials and supplies	107.4	103.4
Prepaid expenses	53.3	45.7
Other current assets	32.1	25.7
Total current assets	696.9	632
Property, plant and equipment, net	2,459.1	2,116.8
Operating lease right-of-use assets	78.3	73.1
Goodwill	721	723.5
Intangible assets, net	715.9	829.1
Deferred income tax assets	2.8	2.2
Other noncurrent assets	78	58.9
Total assets	4,752	4,435.6
Current liabilities
Current portion of long-term debt	27.1	45
Accounts payable	453.8	492.5
Unearned revenue and customer deposits	72	81.6
Accrued taxes	13.2	14.5
Accrued interest	3.6	2
Accrued payroll and benefits	51.5	52.5
Other current liabilities	62.8	47.8
Total current liabilities	684	735.9
Long-term debt, less current portion	1,836.4	1,656
Operating lease liabilities	72	66.1
Pension and postretirement benefit obligations	127.9	138.9
Pole license agreement obligation	40.8	43.6
Deferred income tax liabilities	54.2	98.2
Other noncurrent liabilities	143.2	119.4
Total liabilities	2,958.5	2,858.1
Shareowners' equity
Additional paid-in capital	2,116.1	1,716.1
Accumulated deficit	(350.8)	(158.1)
Accumulated other comprehensive income	28.2	19.5
Total shareowners' equity	1,793.5	1,577.5
Total liabilities and shareowners' equity	$ 4,752	$ 4,435.6

Consolidated Balance Sheets (Pa

Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Statement of Financial Position [Abstract]
Allowance for receivables	$ 17.7	$ 12

Consolidated Statements of Oper

Consolidated Statements of Operations - USD ($)	4 Months Ended	8 Months Ended	12 Months Ended
	Dec. 31, 2021	Sep. 07, 2021	Dec. 31, 2023	Dec. 31, 2022
Income Statement [Abstract]
Revenue	$ 554,400,000	$ 1,138,700,000	$ 1,817,300,000	$ 1,796,000,000
Costs and expenses
Cost of services and products, excluding items below	302,100,000	619,500,000	1,008,300,000	987,800,000
Selling, general and administrative, excluding items below	115,400,000	243,400,000	425,400,000	392,400,000
Depreciation and amortization	144,600,000	194,900,000	449,600,000	497,100,000
Loss on impairment of long-lived assets	0	0	0	2,700,000
Restructuring and severance related charges	600,000	1,200,000	13,800,000	2,000,000
Transaction and integration costs	800,000	54,800,000	2,900,000	11,300,000
Gain on sale of assets, net	0	(2,800,000)	0	0
Total operating costs and expenses	563,500,000	1,111,000,000	1,900,000,000	1,893,300,000
Operating (loss) income	(9,100,000)	27,700,000	(82,700,000)	(97,300,000)
Interest expense	28,300,000	89,100,000	161,200,000	90,100,000
Other components of pension and postretirement benefit plans expense (benefit)	(4,700,000)	6,400,000	700,000	(7,800,000)
Loss on extinguishment of debt, net	2,100,000	10,700,000	0	0
Other (income) expense, net	(300,000)	19,700,000	(17,600,000)	(13,600,000)
Loss before income taxes	(34,500,000)	(98,200,000)	(227,000,000)	(166,000,000)
Income tax benefit	(7,300,000)	(16,900,000)	(34,300,000)	(35,100,000)
Net loss	(27,200,000)	(81,300,000)	(192,700,000)	(130,900,000)
Preferred stock dividends	0	7,600,000	0	0
Net loss applicable to common shareowners	$ (27,200,000)	$ (88,900,000)	$ (192,700,000)	$ (130,900,000)

Consolidated Statements of Comp

Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	4 Months Ended	8 Months Ended	12 Months Ended
	Dec. 31, 2021	Sep. 07, 2021	Dec. 31, 2023	Dec. 31, 2022
Statement of Comprehensive Income [Abstract]
Net loss	$ (27.2)	$ (81.3)	$ (192.7)	$ (130.9)
Other comprehensive income (loss), net of tax:
Foreign currency translation gain (loss)	(1.4)	1.2	2.6	(6.2)
Cash flow hedges:
Unrealized loss on cash flow hedges arising during the period, net of tax of $0.0	0	(0.1)	0	0
Reclassification adjustment for net losses included in net income, net of tax of $5.8	0	19.7	0	0
Defined benefit plans:
Net gain arising from remeasurement during the period, net of tax of $0.7, $7.8, $0.8, $1.8	2.6	6	10.5	25.1
Amortization of prior service benefits included in net income, net of tax of ($0.2), ($0.4)	0	(1.3)	(0.6)	0
Amortization of net actuarial (gain) loss included in net income, net of tax of ($1.2), ($0.2), $3.6	0	12	(3.8)	(0.6)
Total other comprehensive income, net of tax	1.2	37.5	8.7	18.3
Total comprehensive loss	$ (26)	$ (43.8)	$ (184)	$ (112.6)

Consolidated Statements of Co_2

Consolidated Statements of Comprehensive Income (Loss) (Parenthetical) - USD ($) $ in Millions	4 Months Ended	8 Months Ended	12 Months Ended
	Dec. 31, 2021	Sep. 07, 2021	Dec. 31, 2023	Dec. 31, 2022
Statement of Comprehensive Income [Abstract]
Unrealized loss on cash flow hedges arising during the period, tax		$ 0
Reclassification adjustment for net losses included in net income, tax		5.8
Net gain arising from remeasurement during the period, tax	$ 0.8	1.8	$ 0.7	$ 7.8
Amortization of prior service benefits included in net income, tax		(0.4)	(0.2)
Amortization of net actuarial (gain) loss included in net income, tax		$ 3.6	$ (1.2)	$ (0.2)

Consolidated Statements of Equi

Consolidated Statements of Equity (Deficit) - USD ($) shares in Millions, $ in Millions	Total	Preferred Shares [Member]	Common Shares [Member]	Additional Paid-in Capital [Member]	Accumulated Deficit [Member]	Accumulated Other Comprehensive Income (Loss) [Member]
Beginning Balance, Equity (Deficit) at Dec. 31, 2020	$ (191.1)	$ 129.4	$ 0.5	$ 2,670.3	$ (2,831.6)	$ (159.7)
Beginning Balance, Shares at Dec. 31, 2020		3.1
Beginning Balance, Shares at Dec. 31, 2020			50.7
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(81.3)				(81.3)
Other comprehensive income	37.5					37.5
Shares issued under employee plans	0		$ 0
Shares issued under employee plans, Shares			0.2
Shares purchased under employee plans and other	(2)			(2)
Stock-based compensation	4.3			4.3
Equity-based award modification	(10.2)			(10.2)
Dividends on preferred stock	(7.6)			(7.6)
Ending Balance, Equity (Deficit) at Sep. 07, 2021	(250.4)	$ 129.4	$ 0.5	2,654.8	(2,912.9)	(122.2)
Ending Balance, Shares at Sep. 07, 2021		3.1
Ending Balance, Shares at Sep. 07, 2021			50.9
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(27.2)
Other comprehensive income	1.2
Ending Balance, Equity (Deficit) at Dec. 31, 2021	1,690.1	$ 0	$ 0	1,716.1	(27.2)	1.2
Ending Balance, Shares at Dec. 31, 2021		0
Ending Balance, Shares at Dec. 31, 2021			0
Beginning Balance, Equity (Deficit) at Sep. 08, 2021	0	$ 0	$ 0	0	0	0
Beginning Balance, Shares at Sep. 08, 2021		0
Beginning Balance, Shares at Sep. 08, 2021			0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(27.2)				(27.2)
Other comprehensive income	1.2					1.2
Capital contributions by Red Fiber Parent LLC	1,716.1			1,716.1
Ending Balance, Equity (Deficit) at Dec. 31, 2021	1,690.1	$ 0	$ 0	1,716.1	(27.2)	1.2
Ending Balance, Shares at Dec. 31, 2021		0
Ending Balance, Shares at Dec. 31, 2021			0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(130.9)				(130.9)
Other comprehensive income	18.3					18.3
Ending Balance, Equity (Deficit) at Dec. 31, 2022	1,577.5	$ 0	$ 0	1,716.1	(158.1)	19.5
Ending Balance, Shares at Dec. 31, 2022		0
Ending Balance, Shares at Dec. 31, 2022			0
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net loss	(192.7)				(192.7)
Other comprehensive income	8.7					8.7
Capital contributions by Red Fiber Parent LLC	400			400
Ending Balance, Equity (Deficit) at Dec. 31, 2023	$ 1,793.5	$ 0	$ 0	$ 2,116.1	$ (350.8)	$ 28.2
Ending Balance, Shares at Dec. 31, 2023		0
Ending Balance, Shares at Dec. 31, 2023			0

Consolidated Statements of Cash

Consolidated Statements of Cash Flows - USD ($)	4 Months Ended	8 Months Ended	12 Months Ended
	Dec. 31, 2021	Sep. 07, 2021	Dec. 31, 2023	Dec. 31, 2022
Cash flows from operating activities
Net loss	$ (27,200,000)	$ (81,300,000)	$ (192,700,000)	$ (130,900,000)
Adjustments to reconcile net loss to net cash provided by (used in) operating activities:
Depreciation and amortization	144,600,000	194,900,000	449,600,000	497,100,000
Loss on impairment of long-lived assets	0	0	0	2,700,000
Loss on extinguishment of debt	2,100,000	10,700,000	0	0
Provision for loss on receivables	3,600,000	2,100,000	9,100,000	8,400,000
Unrealized loss (gain) on interest rate swaps	0	0	4,400,000	(13,700,000)
Noncash portion of interest expense (income)	(500,000)	4,000,000	7,500,000	5,400,000
Deferred income taxes	(8,600,000)	(21,100,000)	(40,600,000)	(42,300,000)
Pension and other postretirement payments in excess of expense	(7,600,000)	(200,000)	(7,700,000)	(16,100,000)
Stock-based compensation	0	4,300,000	0	0
Other, net	(100,000)	(5,200,000)	(2,400,000)	(1,300,000)
Changes in operating assets and liabilities:
(Increase) decrease in receivables	(138,800,000)	51,100,000	(54,500,000)	(9,100,000)
Increase in inventory, materials, supplies, prepaid expenses and other current assets	(11,800,000)	(29,400,000)	(14,600,000)	(48,100,000)
(Decrease) increase in accounts payable	25,600,000	49,100,000	(54,700,000)	69,200,000
Increase (decrease) in accrued and other current liabilities	(19,500,000)	2,800,000	2,700,000	(1,400,000)
(Increase) decrease in other noncurrent assets	(8,400,000)	2,100,000	(5,100,000)	(5,200,000)
Increase in other noncurrent liabilities	21,600,000	8,800,000	5,000,000	7,300,000
Net cash provided by (used in) operating activities	(25,000,000)	192,700,000	106,000,000	322,000,000
Cash flows from investing activities
Capital expenditures	(127,000,000)	(165,200,000)	(641,400,000)	(482,800,000)
Acquisition of businesses, net of cash acquired	(1,620,700,000)	0	(3,200,000)	(65,500,000)
Purchase of indefinite-lived intangibles	0	0	0	(6,800,000)
Acquisition of fiber assets	(1,700,000)	(50,500,000)	(8,600,000)	0
Proceeds from sale of assets	0	9,100,000	0	2,300,000
Other, net	800,000	(100,000)	(1,000,000)	(900,000)
Net cash used in investing activities	(1,748,600,000)	(206,700,000)	(654,200,000)	(553,700,000)
Cash flows from financing activities
Capital contributions by Red Fiber Parent LLC	1,716,100,000	0	400,000,000	0
Proceeds from issuance of long-term debt	1,145,000,000	23,000,000	211,400,000	2,700,000
Net (decrease) increase in corporate credit facility with initial maturities less than 90 days	0	7,000,000	(70,500,000)	223,000,000
Proceeds from borrowings on receivables facilities	467,500,000	695,400,000	1,706,500,000	1,150,800,000
Payments on receivables facilities	(497,700,000)	(693,400,000)	(1,647,800,000)	(1,116,900,000)
Repayment of debt	(1,004,200,000)	(13,400,000)	(47,800,000)	(20,300,000)
Debt issuance costs	(55,900,000)	(800,000)	(4,000,000)	(700,000)
Dividends paid on preferred stock	(2,400,000)	(7,800,000)	0	0
Other, net	0	(2,000,000)	0	0
Net cash provided by financing activities	1,768,400,000	8,000,000	547,800,000	238,600,000
Effect of exchange rate changes on cash, cash equivalents and restricted cash	100,000	0	0	(100,000)
Net (decrease) increase in cash, cash equivalents and restricted cash	(5,100,000)	(6,000,000)	(400,000)	6,800,000
Cash, cash equivalents and restricted cash at beginning of period	11,200,000	17,200,000	12,900,000	6,100,000
Cash, cash equivalents and restricted cash at end of period	$ 6,100,000	$ 11,200,000	$ 12,500,000	$ 12,900,000

Description of Business and Acc

Description of Business and Accounting Policies	12 Months Ended
	Dec. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Description of Business and Accounting Policies	1. Description of Business and Accounting Policies Organization — On March 13, 2020, the Company (as defined below), entered into an Agreement and Plan of Merger (the “Merger Agreement”) with Red Fiber Parent LLC, a Delaware limited liability company (“Parent”), and RF Merger Sub Inc., an Ohio corporation and directly wholly owned subsidiary of Parent (“Merger Sub”). On September 7, 2021 (the “Closing Date” or “Merger Date”), upon the terms and subject to the conditions set forth in the Merger Agreement, and in accordance with the applicable provisions of the Ohio General Corporation Law (the “OGCL”), Merger Sub merged with and into the Company, with the Company continuing as the surviving corporation (the “Merger”). At the effective time of the Merger (the “Effective Time”), the separate corporate existence of Merger Sub ceased, and the Company survived the Merger as a wholly owned private subsidiary of Parent. As of the date of this filing, the Company has ceased to be a registrant (see Note 12), however due to contractual terms in certain indentures, the Company is required to voluntarily file with the U.S. Securities and Exchange Commission (“SEC”). As a result of the Merger, for accounting purposes, Parent is the acquirer and Cincinnati Bell Inc. is the acquiree and accounting predecessor. The financial statement presentation includes the financial statements of historical Cincinnati Bell Inc. as “Predecessor” for periods prior to the Closing Date and of the Company as “Successor” for the periods after the Closing Date. In connection with the Merger and the related accounting determination, the Company has elected to apply push-down accounting and reflect in its financial statements the fair value of its assets and liabilities. The Consolidated Financial Statements and footnotes include a black line division between the columns titled "Predecessor" and "Successor" to signify that the amounts shown for the periods prior to and following the Merger are not comparable. The Company has elected to record all expenses that were contingent on the closing of the Merger in the Predecessor period. See Note 4 for additional information on the Merger. Description of Business — Cincinnati Bell Inc. and its consolidated subsidiaries ("Cincinnati Bell," "we," "our," "us" or the "Company") provides diversified telecommunications and technology services. For ease of reference, the terms “Cincinnati Bell,” “we,” “our Company,” “the Company,” “us,” or “our” as used in this report refer to both the Predecessor and the Successor and their respective subsidiaries. The Company generates a large portion of its revenue by serving customers in Cincinnati, Ohio, Dayton, Ohio and the islands of Hawaii. An economic downturn or natural disaster occurring in these, or a portion of these, limited operating territories could have a disproportionate effect on our business, financial condition, results of operations and cash flows compared to similar companies of a national scope and similar companies operating in different geographic areas. As of December 31, 2023, we operate our business through the following segments: Network and IT Services and Hardware. The Company has approximate ly 5,300 employees as of December 31, 2023. Approximately 23 % of total empl oyees are covered by collective bargaining agreements with the Communications Workers of America (“CWA”) and the International Brotherhood of Electrical Workers ("IBEW)" Local 1357. The effective dates for collective bargaining agreements with the CWA and IBEW range through the second quarter of 2026 and third quarter of 2028, respectively. In August 2023, Parent committed to make capital contributions of $ 600.0 million to the Company, of which $ 400.0 million was received by the Company in the third quarter of 2023 and recorded to "Additional paid-in capital" on the Consolidated Balance Sheets and $ 200.0 million will be received in the fourth quarter of 2024 . The capital contribution received in the third quarter of 2023 was used to repay borrowings on the Company's Revolving Credit Facility due 2026, fund capital expenditures, and fund working capital. Basis of Presentation — The consolidated financial statements of the Company have been prepared pursuant to the rules and regulations of the SEC and, in the opinion of management, include all adjustments necessary for a fair presentation of the results of operations, comprehensive income, financial position and cash flows for each period presented. Basis of Consolidation — The consolidated financial statements include the consolidated accounts of Cincinnati Bell Inc. and its majority-owned subsidiaries over which it exercises control. Intercompany accounts and transactions have been eliminated in the consolidated financial statements. Use of Estimates — The preparation of financial statements in conformity with generally accepted accounting principles ("GAAP") requires management to make estimates and assumptions that affect the amounts reported. Actual results could differ from those estimates. Significant items subject to such estimates and judgments include: the carrying value of property, plant and equipment; the valuation of credit losses for receivables and deferred income taxes; reserves recorded for income tax exposures; assets and liabilities related to employee benefits; the valuation of deferred costs under Accounting Standards Codification ("ASC") 606, “Revenue Recognition”; purchase price allocation for acquired businesses; and the valuation of intangible assets and goodwill. In the normal course of business, the Company is also subject to various regulatory and tax proceedings, lawsuits, claims and other matters. The Company believes adequate provision has been made for all such asserted and unasserted claims in accordance with GAAP. Such matters are subject to many uncertainties and outcomes that are not predictable with assurance. We periodically review our estimates in light of changes in circumstances, facts and experience. The effects of material revisions in estimates are reflected in our financial statements prospectively from the date of the change in estimate. Business Combinations — In accounting for business combinations, we apply the accounting requirements of Accounting Standards Codification 805 (“ASC 805”), “Business Combinations,” which requires the recording of net assets of acquired businesses at fair value. In developing fair value estimates for acquired assets and assumed liabilities, management analyzes a variety of factors including market data, estimated future cash flows of the acquired operations, industry growth rates, current replacement cost for fixed assets, and market rate assumptions for contractual obligations. Such a valuation requires management to make significant estimates and assumptions, particularly with respect to the intangible assets. In addition, any contingent consideration is presented at fair value at the date of acquisition, and transaction costs are expensed as incurred. The Company reports in its consolidated financial statements provisional amounts for the items for which accounting is incomplete. Goodwill is adjusted for any changes to provisional amounts made within the measurement period. See Note 4 for disclosures related to mergers and acquisitions. Variable Interest Entity — The Company holds an interest in a limited liability company, Digital Access Ohio LLC (“DAO”), that is considered a variable interest entity ("VIE") in accordance with the guidance of ASC 810 “Consolidation.” DAO is considered a VIE as it has insufficient equity capital to finance its activities without additional financial support. The Company is the primary beneficiary of DAO as it has the power over the activities that most significantly impact the economic performance of DAO and has the obligation to absorb expected losses and the right to receive expected benefits that could be significant to DAO. As a result, the Company consolidated DAO, and all significant intercompany accounts have been eliminated. For the years ended December 31, 2023 and 2022, results of operations of DAO were nominal. Funding of DAO is provided in the form of cash contributions, debt issuance and grants that include a free standing warrant that allows the holder of the warrant at its option to convert the warrant into a class A-2 share of DAO at any time during the period commencing on the 2 nd anniversary of the funding agreement and ending on the 10th anniversary of the funding agreement date. The Company has recorded the fair value associated with the warrant to "Other noncurrent liabilities" on the Consolidated Balance Sheets. The Company will continue to assess whether it has a controlling financial interest and whether it is the primary beneficiary at each reportin g period. Cash, Cash Equivalents and Restricted Cash — Cash consists of funds held in bank accounts. Cash equivalents consist of short-term, highly liquid investments with original maturities of three months or less. Restricted cash as of December 31, 2023 consists of funds held by DAO. Restricted cash as of December 31, 2022 consists of funds held in an escrow account related to a cost method investment and funds held by DAO. Restricted cash as of December 31, 2021 consists of funds held in an escrow account related to a cost method investment. Restricted cash is included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts shown on the Consolidated Statements of Cash Flows. A reconciliation of cash, cash equivalents and restricted cash to the Consolidated Balance Sheets follows: (dollars in millions) December 31, 2023 December 31, 2022 December 31, 2021 Cash and cash equivalents $ 9.1 $ 9.4 $ 5.6 Restricted cash included in Other noncurrent assets 3.4 3.5 0.5 Cash, cash equivalents and restricted cash per Consolidated Statements of Cash Flows $ 12.5 $ 12.9 $ 6.1 Receiva bles — Receivables consist principally of trade receivables from customers and are generally unsecured and due within 21 - 90 days. The Company has receivables with one customer, Verizon Communications Inc., which make up 23 % and 21 % of the outstanding accounts receivable balance at December 31, 2023 and 2022, respectively. Unbilled receivables arise from services rendered but not yet billed. As of December 31, 2023 and 2022, unbilled receivables totaled $ 78.8 million and $ 66.9 million, respectively. Expected credit losses related to trade receivables are recorded as an allowance for credit losses in the Consolidated Balance Sheets. The Company establishes the allowa nces for uncollectible accounts using percentages of aged accounts receivable balances to reflect the historical average of credit losses as well as specific provisions for certain identifiable, potentially uncollectible balances. When internal collection efforts on accounts have been exhausted, the accounts are written off and the associated allowance for uncollectible accounts is reduced. As of the Merger Date, the Company measured their receivables at fair value in accordance with ASC 805. Factoring Arrangements — In the second quarter of 2018, the Company executed an amendment of its Receivables Facility that includes an option for Cincinnati Bell Funding LLC (“CBF”) to sell certain receivables, on a non-recourse basis, directly to PNC Bank. The terms of the factoring arrangement provides for the factoring of certain receivables, which are purchased at the face amount of the receivable discounted at the annual rate of LIBOR plus a bank determined spread on the purchase date. In the second quarter of 2022, the Company executed an amendment of its Receivables Facility, which replaced LIBOR with SOFR, a rate equal to the secured overnight financing rate as administered by the Federal Reserve Bank of New York. In the first quarter of 2023, the Company executed certain amendments (the "Amendments") to the Receivables Facility to, among other things, separate the Receivables Facility into two separate facilities, with (A) the existing Receivables Facility (the “Network Receivables Facility”), as amended by the Amendments, covering receivables originated by certain U.S. subsidiaries of the Company including Cincinnati Bell Telephone Company LLC, Hawaiian Telcom Communications, Inc. and certain of their respective subsidiaries and (B) a new facility (the “CBTS Receivables Facility”) covering receivables originated by certain U.S. and Canadian subsidiaries in the Company's IT Services and Hardware segment including CBTS Technology Solutions LLC and OnX Enterprise Solutions Ltd. The Amendments also moved the receivables monetization arrangements from the Network Receivables Facility to the CBTS Receivables Facility. Sales of accounts receivable are reflected as a reduction of "Receivables, less allowances" in the Consolidated Balance Sheets as they meet the applicable criteria in ASC 860, "Transfers and Servicing." The fees recorded in relation to such sales of accounts receivable were $ 0.9 million and $ 1.8 million in 2023 and 2022, respectively, and are included in "Selling, general, and administrative" in the Consolidated Statements of Operations. As of December 31, 2023 and 2022, the outstanding balance of receivables sold under the terms of the factoring agreement was $ 3.5 million and $ 56.8 million, respectively. See Note 7 for further information related to the Network Receivables Facility and the CBTS Receivables Facility. Inventory, Materials and Supplies — Inventory, materials and supplies consists of network components, various telephony and IT equipment to be sold to customers, maintenance inventories, and other materials and supplies, which are carried at the lower of average cost or market. Property, Plant and Equipment — Property, plant and equipment is stated at original cost and presented net of accumulated depreciation and impairment losses. Property, plant and equipment owned by the Company on the Merger Date was stated at fair value in accordance with ASC 805, “Business Combinations.” Maintenance and repairs are charged to expense as incurred while improvements, which extend an asset's useful life or increase its functionality, are capitalized and depreciated over the asset's remaining life. The majority of the Network segment’s network property, plant and equipment used to generate its voice and data revenue is depreciated using the group method, which develops a depreciation rate annually based on the average useful life of a specific group of assets rather than for each individual asset as would be utilized under the unit method. Provision for depreciation of other property, plant and equipment, except for leasehold improvements, is based on the straight-line method over the estimated economic useful life. Depreciation of leasehold improvements is based on a straight-line method over the lesser of the economic useful life of the asset or the term of the lease, including optional renewal periods if renewal of the lease is reasonably assured. Additions and improvements, including interest and certain labor costs incurred during the construction period, are capitalized. The Company records the fair value of a legal liability for an asset retirement obligation in the period it is incurred. The estimated removal cost is initially capitalized and depreciated over the remaining life of the underlying asset. The associated liability is accreted to its present value each period. Once the obligation is ultimately settled, any difference between the final cost and the recorded liability is recognized as gain or loss on disposition. Accounting for Impacts of Involuntary Events and Contingencies — Assets destroyed or damaged as a result of involuntary events are written off or reduced in carrying value to their salvag e value. When recovery of all or a portion of the amount of property damage loss or other covered expenses through insurance proceeds is demonstrated to be probable, a receivable is recorded and offsets the loss or expense up to the amount of the total loss or expense. Proceeds ultimately received from insurance claims for business interruption, direct expenditures and amounts for capital assets in excess of net book value will be recorded to results of operations when collected. No gain is recorded until all contingencies related to the insurance claim have been resolved. Goodwill — Goodwill represents the excess of the purchase price consideration over the fair value of net assets acquired and recorded in connection with business acquisitions. Goodwill is allocated at the business segment level. Goodwill is tested for impairment on an annual basis or when events or changes in circumstances indicate that such assets may be impaired using either a qualitative or quantitative approach. An impairment loss is measured as the excess of the carrying value of a reporting unit over its fair value, not to exceed the carrying amount of goodwill. For the year ended in 2023, to calculate fair value of the reporting units, management used a combination of methods, including both income-based and market-based methods. The income approach relies on estimates of future revenue growth rates, terminal growth rates, EBITDA margin assumptions, and discount rates. The market approach requires the determination of an appropriate peer group, which is utilized to derive estimated fair values based on selected market multiples. No impairment losses were recognized in goodwill for the years ended in 2023 and 2022, and the Successor and Predecessor periods in 2021. Indefinite-Lived Intangible Assets — Intangible assets represent purchased assets that lack physical substance but can be separately distinguished from goodwill because of contractual or legal rights, or because the asset is capable of being separately sold or exchanged. Federal Communications Commission ("FCC") licenses for wireless spectrum and other perpetual licenses represent indefinite-lived intangible assets. The Company may renew the wireless licenses in a routine manner every ten years for a nominal fee, provided the Company continues to meet the service and geographic coverage provisions required by the FCC. Intangible assets not subject to amortization are tested for impairment annually, or when events or changes in circumstances indicate that the asset might be impaired. No impairment losses were recognized on indefinite-lived intangible assets for the years ended December 31, 2023 and 2022, and the Successor and Predecessor periods in 2021. Long-Lived Assets — Management reviews the carrying value of property, plant and equipment and other long-lived assets, including intangible assets with definite lives, when events or changes in circumstances indicate that the carrying amount of the assets may not be recoverable. An impairment loss is recognized when the estimated future undiscounted cash flows expected to result from the use of an asset (or group of assets) and its eventual disposition is less than its carrying amount. An impairment loss is measured as the amount by which the asset’s carrying value exceeds its estimated fair value. Long-lived intangible assets are amortized based on the estimated economic value generated by the asset in future years. No impairment losses were recognized on long-lived assets for the year ended December 31, 2023 and the Successor and Predecessor periods in 2021. For the year ended December 31, 2022, the Company recorded a loss on impairment of long-lived assets of $ 2.7 million related to the impairment of leasehold improvements at the Company’s headquarters. In addition, amortization of the remaining leasehold improvements at the Company’s headquarters was accelerated to reflect the update to management’s estimate of the remaining useful life. Cost Method Investments — Certain of our cost method investments do not have rea dily determinable fair values. These investments are measured at cost minus impairment, if any, plus or minus changes resulting from observable price changes in orderly transactions for the identical or similar investment of the same issuer. The carrying value of these investments was $ 10.0 million and $ 8.0 million as of December 31, 2023 and 2022, respectively, and was included in "Other noncurrent assets" in the Consolidated Balance Sheets. Investments are reviewed at least annually to determine if changes in circumstances exist that wou ld indicate the carrying value may not be recoverable. If indicators are present then an analysis is performed to determine if carrying value exceeds the estimated fair value. No impairment losses were recognized for cost method investments for the year ended December 31, 2023 and the Successor and Predecessor periods in 2021. A no minal impairment was recognized for the cost method investments for the year ended December 31, 2022. Leases — The Company adheres to lease accounting principles described in ASC 842, “Leases.” Under ASC 842, the Company determines if an arrangement is a lease at inception based on the facts and circumstances present. In lease transactions where the Company acts as the lessor, the lease component is accounted for in accordance with ASC 842, and the non-lease component is accounted for in accordance with ASC 606. Although separation of lease and non-lease components is required, certain practical expedients are available that release the Company from this requirement. Adoption of the practical expedient allows the Company to account for each lease component and the related non-lease component together as a single component provided that the timing and patterns of revenue recognition for the components are the same and the combined, single unit of account would be classified as an operating lease. The Company's operating leases for certain services that include Customer Premise Equipment, including handsets and set-top boxes, have lease and non-lease components. In these arrangements, management has concluded that the non-lease components are the predominant characteristic, and, as a result, the Company has elected to account for these arrangements as one single non-lease component recorded as "Revenue" in the Consolidated Statements of Operations in accordance with ASC 606. Right-of-use assets represent our right to use an underlying asset for the lease term, and lease liabilities represent our obligation to make lease payments arising from the lease. Operating lease right-of-use assets and liabilities are recognized at commencement date based on the present value of lease payments over the lease term. Certain adjustments to the right-of-use asset may be required for items such as initial direct costs paid or incentives received. The Company's lease terms include options to extend, terminate or buyout the lease when it is reasonably certain that we will exercise that option. Leases that have contract prices based on variable factors, such as power usage, are recognized as variable lease expense in the period in which the obligation for those payments are incurred. Lease expense for variable lease payments is recognized on a straight-line basis over the lease term. Revenue Recognition — The Company adheres to revenue recognition principles described in ASC 606. Under ASC 606, revenue is recognized when the Company transfers promised goods or services to customers in an amount that reflects the consideration to which the Company expects to be entitled in exchange for those goods or services. A good or service is considered to be transferred when the customer obtains control. Revenue derived from foreign operations was approximately 7 % of consolidated revenue in both 2023 and 2022. Revenue derived from foreign operations was approximately 6 % of consolidated revenue for both the Successor period and the Predecessor period included within 2021. Network — Revenues from local telephone, special access, internet product and video services, which are billed monthly prior to performance of service, are not recognized upon billing or cash receipt but rather are deferred until the service is provided. Consumer long distance, switched access and other usage based charges are billed monthly in arrears. Network bills service revenue in regular monthly cycles, which are spread throughout the days of the month. As the last day of each billing cycle rarely coincides with the end of the reporting period for usage-based services such as long distance and switched access, we must estimate service revenues earned but not yet billed. These estimates are based upon historical usage, and we adjust these estimates during the period in which actual usage is determinable, typically in the following reporting period. Pricing of local voice services is generally subject to oversight by both state and federal regulatory commissions. Such regulation also covers services, competition, and other public policy issues. Various regulatory rulings and interpretations could result in increases or decreases to revenue in future periods. For long-term indefeasible right of use, or IRU, contracts for fiber circuit capacity, the Company may receive up-front payments for services to be delivered for a period of up to 25 years. In these situations, the Company defers the revenue and amortizes it on a straight-line basis to earnings over the term of the contract. See Note 3 for further information. IT Services and Hardware — Revenue is generally recognized as the service is provided. Maintenance on telephony equipment is deferred and recognized ratably over the term of the underlying customer contract, generally one to three years . For hardware sales, revenue is recognized net of the cost of product and is recognized when the hardware is either shipped or delivered in accordance with the terms of the contract. Installation service revenue is generally recognized when installation is complete. We sell equipment and installation services on both a combined and standalone basis. For the sale of hardware within the Infrastructure Solutions category, the Company evaluated whether it is the principal (in which case we report revenues on a gross basis) or the agent (in which case we report revenues on a net basis). The Company has concluded it acts as an agent because it does not control the inventory before it is transferred to customers, it does not have the ability to direct the product to anyone besides the purchasing customer, and it does not integrate the hardware with any of its own goods or services. Advertising Expenses — Cost s related to advertising are expensed as incurred. Advertising costs were $ 26.7 million and $ 25.1 million for the years ended 2023 and 2022, respectively, and $ 7.1 million and $ 12.8 million for the Successor and Predecessor periods in 2021, respectively. Legal Expenses and Contingencies — In the normal course of business, the Company is involved in various claims and legal proceedings. Legal costs incurred in connection with loss contingencies are expensed as incurred. Legal claim accruals and contingencies are recorded once determined to be both probable and estimable. Income, Operating, and Regulatory Taxes Income taxes — The Company and its subsidiaries file income tax returns in the U.S. federal jurisdiction as well as various foreign, state and local jurisdictions. The provision for income taxes is based upon income in the consolidated financial statements, rather than amounts reported on the income tax return. The income tax provision consists of an amount for taxes currently payable and an amount for tax consequences deferred to future periods. Deferred income taxes are provided for temporary differences between financial statement and income tax assets and liabilities. Deferred income taxes are recalculated annually at rates then in effect. The Company recognizes future tax benefits, such as net operating losses and tax credits, to the extent that realizing these benefits is considered to be more likely than not. Valuation allowances are recorded to reduce deferred tax assets to amounts that are more likely than not to be realized. The ultimate realization of the deferred income tax assets depends upon the ability to generate future taxable income during the periods in which basis differences and other deductions become deductible and prior to the expiration of the net operating loss carryforwards. Previous tax filings are subject to normal reviews by regulatory agencies until the related statute of limitations expires. Operating taxes — Certain operating taxes such as property, sales, use, and gross receipts taxes are reported as expenses in operating income primarily within cost of services. These taxes are not included in income tax expense because the amounts to be paid are not dependent on our level of income. Liabilities for audit exposures are established based on management's assessment of the probability of payment. The provision for such liabilities is recognized as either property, plant and equipment, operating tax expense, or depreciation expense depending on the nature of the audit exposure. Upon resolution of an audit, any remaining liability not paid is released against the account in which it was originally recorded. Regulatory taxes — The Company incurs federal and state regulatory taxes on certain revenue producing transactions. We are permitted to recover certain of these taxes by billing the customer; however, collections cannot exceed the amount due to the federal regulatory agency. These federal regulatory taxes are presented in revenue and cost of services on a gross basis because, while the Company is required to pay the tax, it is not required to collect the tax from customers and, in fact, does not collect the tax from customers in certain instances. The amounts recorded as revenue totaled $ 34.0 million and $ 32.9 million for the years ended December 31, 2023 and 2022, respectively, and $ 13.2 million and $ 27.2 million in the Successor and Predecessor periods in 2021, respectively. The amounts recorded as expense totaled $ 38.0 million and $ 36.9 million for the years ended December 31, 2023 and 2022, respectively, and $ 13.7 million and $ 32.1 million in the Successor and Predecessor periods in 2021, respectively. We record all other federal taxes collected from customers on a net basis. Stock-Based Compensation — Compensation cost is recognized for all share-based awards to employees and non-employee directors. We value all share-based awards to employees at fair value on the date of grant and expense this amount over the requisite service period, generally defined as the applicable vesting period. For awards which contain a performance condition, compensation expense is recognized over the service period, when achievement of the performance condition is deemed probable. The fair value of stock options and stock appreciation rights is determined using the Black-Scholes option-pricing model using assumptions such as volatility, risk-free interest rate, expected holding period and dividends. The fair value of stock awards is based on the Company’s closing share price on the date of grant. For all share-based payments, the Company accounts for forfeitures as they occur. Actual forfeiture activity reduces the total fair value of the awards to be recognized as compensation expense. When an award is granted to an employee who is retirement eligible, the compensation cost is recognized over the service period up to the date that the employee first becomes eligible to retire. In connection with the consummation of the Merger, certain previously granted stock-based awards vested on the Closing Date per the terms of the change of control clauses in each plan and were paid at the share purchase price of $ 15.50 . As a result, the following awards vested and were paid on the date of acquisition: (i) time-based restricted stock units and performance-based stock units associated with the 2019 – 2021 long-term incentive plan granted under the 2017 Long-Term Incentive Plan; (ii) time-based restricted stock units granted to non-employee directors in 2020 under the 2017 Stock Plan for Non-Employee Directors; and (iii) time-based restricted stock units granted under the Hawaiian Telcom 2010 Equity Incentive Plan in the first quarter of 2018 which the Company assumed responsibility for the eventual payout upon the acquisition of Hawaiian Telcom. Due to the accelerated vesting and cash payment of these awards, the Company recorded additional compensation expense of $ 9.3 million to “Selling, general and administrative” expense in the Predecessor period of 2021 on the Consolidated Statements

Recently Issued Accounting Stan

Recently Issued Accounting Standards	12 Months Ended
	Dec. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Recently Issued Accounting Standards	2. Recently Issued Accounting Standards In December 2019, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes, which simplifies the accounting for income taxes, eliminates certain exceptions within Income Taxes (740) , and clarifies certain aspects of the current guidance to promote consistency among reporting entities, and is effective for fiscal years, and for interim periods within those fiscal years, beginning after December 15, 2020. Most amendments within ASU 2019-12 are required to be applied on a prospective basis, while certain amendments must be applied on a retrospective or modified retrospective basis. The Company adopted the standard effective January 1, 2021 . The Company has evaluated the amendments that must be applied on a retrospective or modified retrospective basis and concluded that no adjustments are necessary. The Company has applied all other amendments on a prospective basis, and the changes did not have a material effect on its consolidated financial statements. In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting. The ASU is intended to provide temporary optional expedients and exceptions to the U.S. GAAP guidance on contract modifications and hedge accounting to ease the financial reporting burdens related to the expected market transition from the London Interbank Offered Rate (“LIBOR”) and other interbank offered rates to alternative reference rates. ASU 2020-04 was amended in December 2022 by the provisions of ASU 2022-06, Reference Rate Reform (Topic 848): Deferral of the Sunset Date of Topic 848. These amendments are effective as of any date from the beginning of an interim period that includes or is subsequent to March 12, 2020 and may be applied prospectively to contract modifications made and hedging relationships entered into or evaluated on or before December 31, 2024. The Company does not expect the standard to have a material effect on its consolidated financial statements. In November 2023, the FASB issued ASU 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures, which improves reportable segment disclosure requirements, primarily through enhanced disclosures about significant segment expenses. The ASU is effective for public business entities for fiscal years beginning after December 15, 2023 and interim periods within fiscal years beginning after December 15, 2024. The amendments within ASU 2023-07 are required to be applied on a retrospective basis. The Company is currently evaluating the effects of this standard on its consolidated financial statements and related disclosures. In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, which requires reporting entities to disclose disaggregated information about the entity's effective tax rate reconciliation as well as information on income taxes paid. The ASU is effective for public business entities for annual periods beginning after December 15, 2024, although early adoption is permitted. The amendments in this ASU will be applied on a prospective basis with the option to apply the standard retrospectively. The Company is currently evaluating the effects of this standard on its consolidated financial statements and related disclosures. Other accounting standards that have been issued or proposed by the FASB or other standards-setting bodies that do not require adoption until a future date are not expected to have a material impact on the Company’s consolidated financial statements upon adoption.

Revenue

Revenue	12 Months Ended
	Dec. 31, 2023
Revenue from Contract with Customer [Abstract]
Revenue	3. Revenue The Network segment provides products and services to both consumer and enterprise customers that can be categorized as Fioptics, previously referred to as "Consumer/SMB Fiber" in Hawaii and collectively with Fioptics in Cincinnati, Enterprise Fiber or Legacy. The products and services within these three categories can be further categorized as either Data, Voice, Video or Other. Fioptics and Legacy revenue include both consumer and commercial customers. Enterprise Fiber revenue includes ethernet and dedicated internet access services that are provided to enterprise customers. Enterprise Fiber also includes revenue associated with the Southeast Asia to United States ("SEA-US") trans-Pacific submarine cable system, which was acquired in conjunction with the acquisition of Hawaiian Telcom in the third quarter of 2018, and connects Indonesia, the Philippines, Guam, Hawaii and the mainland United States. Subsequent to the Company's acquisitions of Agile and OTT, services provided by Agile and OTT are also included in Enterprise Fiber. Residential customers have implied month-to-month contracts, while commercial customers, with the exception of contracts associated with the SEA-US cable system, typically have contracts with a duration of one to five years and automatically renew on a month-to-month basis. Customers are invoiced on a monthly basis for services rendered. Contracts for projects that are included within the Other revenue stream are typically short in duration and less than one year. Contracts associated with the SEA-US cable system typically range from 15 to 25 years and payment is prepaid. The IT Services and Hardware segment provides a full range of Information Technology ("IT") solutions, including Communications, Cloud and Consulting services. IT Services and Hardware customers enter into contracts that have a typical duration of one to five years, with varied renewal options at the end of the term. Customers are invoiced on a monthly basis for services rendered. The IT Services and Hardware segment also provides enterprise customers with Infrastructure Solutions, which includes the sale of hardware and maintenance contracts. These contracts are typically satisfied in less than twelve months and revenue is recognized at a point in time. The Company has elected the practical expedient described in ASC 606-10-32-18 that allows an entity to not adjust the promised amount of consideration for the effects of a significant financing component if the entity expects that the period of time between the transfer of a promised good or service to the customer and when the customer pays for such good or service will be one year or less. Customers are typically billed immediately upon the rendering of services or the delivery of products. Payment terms for customers are between 30 and 120 days. Subsequent to the acquisition of Hawaiian Telcom, the Company began recognizing a financing component associated with the up-front payments for services to be delivered under indefeasible right of use ("IRU") contracts for fiber circuit capacity. The IRU contracts are associated with the SEA-US cable system and other dedicated fiber routes. The IRU contracts typically have a duration ranging from 15 to 25 years . Performance Obligations A performance obligation is a promise in a contract to transfer a distinct good or service to the customer, or a series of distinct goods or services, and is the unit of account defined in ASC Topic 606. The transaction price identified in the contract is allocated to each distinct performance obligation and recognized as revenue when, or as, the performance obligation is satisfied. Contract modifications for changes to services provided are routine throughout the term of our contracts. In most instances, contract modifications are for the addition or reduction of services that are distinct, and price changes are based on the stand-alone selling price of the service and, as such, are accounted for on a prospective basis as a new contract. Goods and services are sold individually, or a contract may include multiple goods or services. For contracts with multiple goods and services, the contract transaction price is allocated to each performance obligation using the stand-alone selling price of each distinct good or service in the contract. Certain customers of the Company may receive cash-based rebates based on volume of sales, which are accounted for as variable consideration. Potential rebates are considered at contract inception in our estimate of transaction price based on the projected volume of sales. Estimates are reassessed quarterly. Performance obligations are satisfied either over time as services are performed or at a point in time. Substantially all of our service revenue is recognized over time. For services transferred over time, the Company has elected the practical expedient to recognize revenue based on amounts invoiced to the customer as the Company has concluded that the invoice amount directly corresponds with the value of services provided to the customer. Management considers this a faithful depiction of the transfer of control as services are provided evenly over the month and are substantially the same over the life of the contract. As the Company has elected the practical expedients detailed at ASC 606-10-50-13, revenue for these unsatisfied performance obligations that will be billed in future periods has not been disclosed. As of December 31, 2023, our estimated revenue, including a financing component, expected to be recognized in the future related to performance obligations associated with customer contracts that are unsatisfied (or partially unsatisfied) is $ 192.5 million. Approximately 50 % of this revenue is related to an IRU contract entered into in the Predecessor period of 2021 to provide dedicated fiber routes for a period of 20 years (see Note 9). Certain IRU contracts extend for periods of up to 30 years and are invoiced at the beginning of the contract term. The revenue from such contracts is recognized over time as services are provided over the contract term. The expected revenue to be recognized for existing IRU contracts is as follows: (dollars in millions) 2024 $ 21.4 2025 21.1 2026 21.7 2027 21.8 2028 9.5 Thereafter 97.0 Network The Company has identified four distinct performance obligations in the Network segment, namely Data, Voice, Video and Other. For each of the Data, Voice and Video services, service is delivered to the customer continuously and in a substantially similar manner for each period of the agreement, the customer takes full control over the services as the service is delivered, and as such, Data, Voice and Video are identified to be a series of distinct services. Services provided by the Network segment can be categorized into three main categories that include Fioptics, Enterprise Fiber and Legacy, each of which may include one or more of the aforementioned performance obligations. Data services include high-speed internet access, digital subscriber lines, ethernet, routed network services, SONET (Synchronous Optical Network), dedicated internet access, wavelength, digital signal and IRU revenue. Voice services include traditional and fiber voice lines, switched access, digital trunking and consumer long distance calling. Video services are offered through our fiber network to residential and commercial customers based on various standard plans with the opportunity to add premium channels. To receive video services, customers are required to use the Company's set top boxes that are billed as part of the monthly recurring service. Set top boxes are not considered a separate performance obligation from video because the equipment is necessary for the service to operate and the customer has no alternative use for the equipment. Services and products not included in Data, Voice or Video are included in Other revenue and are comprised of wire care, wire time and materials projects, subsidized fiber build projects and advertising. Transfer of control of these services and products is evaluated on an individual project basis and can occur over time or at a point in time. The Company uses multiple methods to determine stand-alone selling prices in the Network segment. For Data, Video and Voice products in Fioptics, market rate is the primary method used to determine stand-alone selling prices. For Data performance obligations under the Enterprise Fiber category, and Voice, Data and Other performance obligations under the Legacy category, stand-alone selling prices are determined based on a list price, discount off of list price, a tariff rate, a margin percentage range, or a minimum margin percentage. IT Services and Hardware The Company has identified four distinct performance obligations in the IT Services and Hardware segment. These performance obligations are Communications, Cloud, Consulting and Infrastructure Solutions. Communications services are monthly services that include data and VoIP services, tailored solutions that include converged IP communications of data, voice, video and mobility applications, enterprise long distance, MPLS (Multi-Protocol Label Switching) and conferencing services. Cloud services include storage, backup, disaster recovery, SLA-based monitoring and management, cloud computing and cloud consulting. Consulting services provide customers with IT staffing, consulting and emerging technology solutions. Infrastructure Solutions includes the sale of hardware and maintenance contracts as well as installation projects. For the sale of hardware, the Company evaluated whether it is the principal or the agent. The Company has concluded it acts as an agent because it does not control the inventory before it is transferred to customers, it does not have the ability to direct the product to anyone besides the purchasing customer, and it does not integrate the hardware with any of its own goods or services. Based on this assessment, the performance obligation is to arrange a sale of hardware between the vendor and the customer. In the instance where there is an issue with the hardware, the Company coordinates with the manufacturer to facilitate a return in accordance with the standard manufacturer warranty. Hardware returns are not significant to the Company. Within the IT Services and Hardware segment, stand-alone selling prices for the four performance obligations are determined based on either a margin percentage range, minimum margin percentage or discount from standard price list if it is determined to be representative of stand-alone selling price. For hardware sales, revenue is recognized net of the cost of product and is recognized when the hardware is shipped or delivered in accordance with the terms of the contract. For certain projects within Communications and Consulting, revenue is recognized when the customer communicates acceptance of the services performed. For contracts with freight on board shipping terms, management has elected to account for shipping and handling as activities to fulfill the promise to transfer the good, and therefore, has not evaluated whether shipping and handling activities are promised services to its customers. Contract Balances The Company recognizes incremental fulfillment costs as an asset when installation expenses are incurred as part of performing the agreement for Voice, Video and Data product offerings in the Network segment in which the contract life is longer than one year. These fulfillment costs are amortized ratably over the expected life of the customer, which is representative of the expected period of benefit of the asset capitalized. The expected life of the customer is determined utilizing the average churn rate for each product. The Company calculates average churn based on the historical average customer life. We also recognize an asset for incremental fulfillment costs for certain Cloud and Communications services in the IT Services and Hardware segment that require us to incur installation and provisioning expenses. The asset recognized for Cloud and Communications services is amortized over the average contract life. Churn rates and average contract life are reviewed on an annual basis. Fulfillment costs are capitalized to “Other noncurrent assets.” The related amortization expense is recorded to “Cost of services and products.” The Company recognizes an asset for the incremental costs of acquiring a contract with a customer if we expect the benefit of those costs to be longer than one year. We have determined that certain sales incentive programs related to Voice, Video, Data and certain Communications and Cloud services meet the requirements to be capitalized. The contract asset established for the costs of acquiring a contract is recorded to “Other noncurrent assets.” Sales incentives are amortized ratably over the period that services are delivered using either an average churn rate or average contract term, both representative of the expected period of benefit of the asset capitalized. Customer churn rates and average contract term assumptions are reviewed on an annual basis. The related amortization expense is recorded to “Selling, general and administrative.” Management has elected to use the practical expedient detailed in ASC 340-40-25-4 to expense any costs to fulfill a contract and costs to obtain a contract as they are incurred when the amortization period would be one year or less. This practical expedient has been applied to fulfillment costs that include installation costs associated with wiring projects and certain Cloud services. In addition, this practical expedient has been applied to acquisition costs associated with revenue from certain Communications projects. The following table presents the activity for the Company’s contract assets: Successor Fulfillment Costs Cost of Acquisition Total Contract Assets IT Services IT Services IT Services and Total and Total and Total (dollars in millions) Network Hardware Company Network Hardware Company Network Hardware Company Balance as of September 8, 2021 (remeasured upon Merger) $ — $ — $ — $ — $ — $ — $ — $ — $ — Additions 0.7 0.8 1.5 3.5 0.4 3.9 4.2 1.2 5.4 Amortization — ( 0.1 ) ( 0.1 ) ( 0.2 ) ( 0.1 ) ( 0.3 ) ( 0.2 ) ( 0.2 ) ( 0.4 ) Balance as of December 31, 2021 0.7 0.7 1.4 3.3 0.3 3.6 4.0 1.0 5.0 Additions 2.2 2.6 4.8 11.3 1.6 12.9 13.5 4.2 17.7 Amortization ( 0.4 ) ( 0.6 ) ( 1.0 ) ( 2.6 ) ( 0.9 ) ( 3.5 ) ( 3.0 ) ( 1.5 ) ( 4.5 ) Balance as of December 31, 2022 2.5 2.7 5.2 12.0 1.0 13.0 14.5 3.7 18.2 Additions 2.2 2.0 4.2 11.8 1.1 12.9 14.0 3.1 17.1 Amortization ( 0.8 ) ( 1.4 ) ( 2.2 ) ( 5.5 ) ( 0.8 ) ( 6.3 ) ( 6.3 ) ( 2.2 ) ( 8.5 ) Balance as of December 31, 2023 $ 3.9 $ 3.3 $ 7.2 $ 18.3 $ 1.3 $ 19.6 $ 22.2 $ 4.6 $ 26.8 Predecessor Fulfillment Costs Cost of Acquisition Total Contract Assets IT Services IT Services IT Services and Total and Total and Total (dollars in millions) Network Hardware Company Network Hardware Company Network Hardware Company Balance as of December 31, 2020 $ 3.5 $ 3.9 $ 7.4 $ 15.8 $ 3.6 $ 19.4 $ 19.3 $ 7.5 $ 26.8 Additions 2.5 2.6 5.1 7.2 0.4 7.6 9.7 3.0 12.7 Amortization ( 5.2 ) ( 1.9 ) ( 7.1 ) ( 6.7 ) ( 1.1 ) ( 7.8 ) ( 11.9 ) ( 3.0 ) ( 14.9 ) Balance as of September 7, 2021 $ 0.8 $ 4.6 $ 5.4 $ 16.3 $ 2.9 $ 19.2 $ 17.1 $ 7.5 $ 24.6 Fulfillment costs and costs of acquisition were remeasured in the Successor period of 2021 in accordance with ASC 805. The Company recognizes a liability for cash received up-front for IRU contracts. At December 31, 2023 and 2022, $ 4.1 million and $3 .2 million, respectively, of contract liabilities were included in "Other current liabilities." At December 31, 2023 and 2022, $ 79.5 million and $74 .2 million, respectively, of contract liabilities were included in "Other noncurrent liabilities." Disaggregated Revenue The following table presents revenues disaggregated by product and service lines: Successor Predecessor Year Ended Year Ended September 8, 2021 to January 1, 2021 to (dollars in millions) December 31, 2023 December 31, 2022 December 31, 2021 September 7, 2021 Data $ 557.1 $ 523.3 $ 156.2 $ 334.6 Video 193.7 193.6 60.4 131.8 Voice 218.6 230.8 76.4 177.3 Other 33.5 46.6 10.8 20.5 Total Network 1,002.9 994.3 303.8 664.2 Consulting 342.0 339.4 105.5 193.6 Cloud 118.5 101.7 31.9 66.4 Communications 224.2 222.3 68.5 149.1 Infrastructure Solutions 154.0 164.5 53.4 83.3 Total IT Services and Hardware 838.7 827.9 259.3 492.4 Intersegment revenue ( 24.3 ) ( 26.2 ) ( 8.7 ) ( 17.9 ) Total revenue $ 1,817.3 $ 1,796.0 $ 554.4 $ 1,138.7 The following table presents revenues disaggregated by contract type: Successor Predecessor Year Ended Year Ended September 8, 2021 to January 1, 2021 to (dollars in millions) December 31, 2023 December 31, 2022 December 31, 2021 September 7, 2021 Network Products and services transferred at a point in time $ 26.3 $ 27.3 $ 8.0 $ 15.8 Products and services transferred over time 960.2 947.7 289.3 635.3 Intersegment revenue 16.4 19.3 6.5 13.1 Total Network 1,002.9 994.3 303.8 664.2 IT Services and Hardware Products and services transferred at a point in time 175.4 167.2 59.4 90.1 Products and services transferred over time 655.4 653.8 197.7 397.5 Intersegment revenue 7.9 6.9 2.2 4.8 Total IT Services and Hardware 838.7 827.9 259.3 492.4 Total Revenue Total products and services transferred at a point in time 201.7 194.5 67.4 105.9 Total products and services transferred over time 1,615.6 1,601.5 487.0 1,032.8 Total revenue $ 1,817.3 $ 1,796.0 $ 554.4 $ 1,138.7

Mergers and Acquisitions

Mergers and Acquisitions	12 Months Ended
	Dec. 31, 2023
Business Combinations [Abstract]
Mergers and Acquisitions	4. Mergers and Acquisitions Acquisition of Bridgewired Fiber Assets In the third quarter of 2023, the Company acquired fiber network assets from Bridgewired, LLC ("Bridgewired") for an aggregate purchase price of $ 6.7 million, consisting of $ 5.9 million in cash and $ 0.8 million in contingent consideration. The Company accounted for the Bridgewired fiber asset acquisition as an asset acquisition under ASC 805-10-55 “Business Combinations” because the assets acquired do not include an assembled workforce, and the gross value of the assets acquired meets the screen test in ASC 805-10-55-5A related to substantially all of the fair value being concentrated in a single asset or group of assets (i.e., the fiber infrastructure assets) and, thus, the assets are not considered a business. The fiber network assets will help to support and expand the Company's existing network. The assets are recorded as network equipment in “Property, plant and equipment, net” on the Consolidated Balance Sheets. Acquisition of Ohio Transparent Telecom Inc. On April 17, 2023 ("OTT Acquisition Date"), the Company acquired 100 % of Ohio Transparent Telecom Inc. ("OTT"), a private company that provides network security, data connectivity, and unified communications solutions to commercial and enterprise customers across multiple sectors throughout Ohio and Michigan for a n aggregate purchase price of $ 3.3 million, consisting of $ 3.2 million in cash and $ 0.1 million in contingent consideration. The services and solutions provided by OTT will complement the services offered by Agile (defined below), which the Company acquired in the second quarter of 2022. The valuation of the assets acquired and liabilities assumed is based on estimated fair values at the OTT Acquisition Date and recorded to the Network segment. The Company considers the allocation and fair value estimates of property, plant and equipment, goodwill, other assets and other liabilities to be preliminary in nature as of December 31, 2023. The Company expects to continue to obtain information to assist in determining the fair value of the net assets acquired as of the OTT Acquisition Date while the measurement period remains open. Measurement period adjustments related to the acquisition of OTT will be applied retrospectively to the OTT Acquisition Date. In connection with this acquisition, the Company recorded goodw ill of $ 1.1 million attributable to an acquired workforce with industry expertise in addition to other expected synergies with Agile. The amount of goodwill related to this acquisition is deductible for income tax purposes. Acquisition of Lawrenceburg Fiber Assets In the first quarter of 2023, the Company acquired fiber network assets from the City of Lawrenceburg for an aggregate purchase price of $ 3.0 million consisting of $ 2.7 million in cash and $ 0.3 million in contingent consideration. The Company accounted for the Lawrenceburg fiber asset acquisition as an asset acquisition under ASC 805-10-55 “Business Combinations” because the assets acquired do not include an assembled workforce, and the gross value of the assets acquired meets the screen test in ASC 805-10-55-5A related to substantially all of the fair value being concentrated in a single asset or group of assets (i.e., the fiber infrastructure assets) and, thus, the assets are not considered a business. The fiber network assets will help to support and expand the Company's existing network. The assets are recorded as network equipment in “Property, plant and equipment, net” on the Consolidated Balance Sheets. Acquisition of Agile IWG Holdings, LLC On May 2, 2022 (“Agile Acquisition Date”), the Company acquired Agile IWG Holdings, LLC ("Agile"), based in Canton, Ohio for total cash consideration of $ 65.5 million. Agile delivers customers, primarily located in Ohio and Pennsylvania, with middle mile, last mile and campus connectivity services through hybrid fiber wireless networks that are designed, built and managed by Agile. The purchase price was funded through borrowings under the Company's former Receivables Facility and the Revolving Credit Facility due 2026 (see Note 7). The valuation of the assets acquired and liabilities assumed was based on estimated fair values at the Agile Acquisition Date. The allocation of consideration to the net tangible and intangible assets acquired and liabilities assumed reflects various fair value estimates and analyses, including work performed by third-party valuation specialists. The determination of the final purchase price allocation to specific assets acquired and liabilities assumed is complete. The Company incurred $ 0.3 million and $ 2.1 million in acquisition expenses related to the Agile acquisition in 2023 and 2022, respectively. No expenses related to the Agile acquisition were recorded in the Predecessor period in 2021 or the Successor period in 2021. These expenses are recorded in "Transaction and integration costs" on the Consolidated Statements of Operations. Based on fair value estimates, the purchase price has been allocated to individual assets acquired and liabilities assumed as follows: (dollars in millions) Agile Assets acquired Receivables and other current assets $ 1.8 Property, plant and equipment 10.2 Operating lease right-of-use assets 27.8 Intangible assets 19.4 Goodwill 35.0 Total assets acquired 94.2 Liabilities assumed Accrued expenses and other current liabilities 2.5 Operating lease liabilities 25.7 Other noncurrent liabilities 0.5 Total liabilities assumed 28.7 Net assets acquired $ 65.5 In connection with this acquisition, the Company recorded goodwill attributable to a diversified customer base and acquired workforce with industry expertise. The amount of goodwill related to this acquisition is deductible for income tax purposes. In the second quarter of 2023, the Company recorded a measurement period adjustment to reflect the tax impact on the fair value of property, plant and equipment and intangible assets acquired which resulted in a decrease to "Deferred income tax liability" and to "Goodwill" of $ 4.4 million. In the fourth quarter of 2022, a measurement period adjustment was recorded to reflect the tax impact on the estimated fair value of property, plant and equipment and intangible assets acquired which resulted in an increase to “Deferred income tax liability” and to “Goodwill” of $ 4.4 million. In addition, the Company recorded a measurement period adjustment considered to be immaterial in nature which impacted "Receivables and other current assets" and "Goodwill" in the fourth quarter of 2022. During the third quarter of 2022, the Company recorded measurement period adjustments for Agile to reflect refinements in fair value estimates in addition to a working capital adjustment of $ 0.4 million that increased the purchase price to $ 65.5 million. Most significant adjustments recorded were related to the acquired operating leases included in "Operating lease right-of-use assets” and "Operating lease liabilities,” deferred tax liabilities included in “Other noncurrent liabilities” and “Intangible assets.” The offset to these adjustments were recorded as a net decrease to “Goodwill.” Measurement period adjustments related to the acquisition of Agile were applied retrospectively to the Agile Acquisition Date. Based on fair value estimates, the identifiable intangible assets acquired are as follows: (dollars in millions) Fair Value Useful Lives Customer relationships $ 16.0 15 years Trade names 2.3 10 years Technology 1.1 7 years Total identifiable intangible assets $ 19.4 Acquisition by Red Fiber Parent LLC On September 7, 2021, pursuant to the Merger Agreement and in accordance with the applicable provisions of the OGCL, Parent completed the acquisition of Cincinnati Bell in an all cash transaction valued at approximately $ 3.1 billion, including assumption of debt of $ 1,357.1 million. Upon the Effective Time, the separate existence of Merger Sub ceased and the Company survived the Merger as a wholly owned subsidiary of Parent. Pursuant to the Merger Agreement, each of Cincinnati Bell’s issued and outstanding Common Shares was converted into the right to receive $ 15.50 per share in cash, without interest. Trading of the Company's Common Shares was suspended on the New York Stock Exchange (“NYSE”) and the Common Shares were subsequently delisted from the NYSE. Additionally, the Company redeemed Depositary Shares simultaneously with the redemption of the 6 3 / 4 % Preferred Shares, at a redemption price of $ 50 per Depositary Share (equivalent to $ 1,000 per 6 3 / 4 % Preferred Share), and the Depositary Shares were subsequently delisted from the NYSE. The Company accounted for this transaction as a business combination in accordance with the acquisition method of accounting, which requires, among other things, that assets acquired and liabilities assumed be recognized at their estimated fair values, using primarily Level 3 inputs, as described in Note 1, as of the Merger Date. Transaction costs of the acquirer are not included as a component of consideration transferred but are accounted for as expenses in the period in which such costs are incurred, or, if related to the issuance of debt, capitalized as debt issuance costs. Acquisition-related transaction costs incurred as part of the Merger, primarily included advisory, legal and accounting fees. The valuation of the assets acquired and liabilities assumed was based on estimated fair values at the Merger Date. The allocation of consideration to the net tangible and intangible assets acquired and liabilities assumed reflect various fair value estimates and analyses, including work performed by third-party valuation specialists. The determination of the final purchase price allocation to specific assets acquired and liabilities assumed is complete. The purchase price for Cincinnati Bell Inc. consisted of the following: (dollars in millions) Cash consideration for Cincinnati Bell Inc. stock $ 807.3 Cash consideration for preferred stock 155.2 Cash consideration for debt repayment 658.2 Total purchase price $ 1,620.7 Based on fair value estimates, the purchase price has been allocated to individual assets acquired and liabilities assumed as follows: (dollars in millions) Cincinnati Bell Inc. Assets acquired Cash $ 11.2 Receivables 318.5 Inventory, materials and supplies 56.4 Prepaid expenses 5.6 Other current assets 40.5 Property, plant and equipment 1,950.8 Operating lease right-of-use assets 42.3 Goodwill 651.0 Intangible assets 969.6 Deferred tax assets 6.9 Other noncurrent assets 20.2 Total assets acquired 4,073.0 Liabilities assumed Current portion of long-term debt 11.8 Accounts payable 381.1 Unearned revenue and customer deposits 51.2 Accrued taxes 24.6 Accrued interest 19.4 Accrued payroll and benefits 49.3 Other current liabilities 75.0 Long-term debt, less current portion 1,378.0 Operating lease liabilities 38.6 Pension and postretirement benefit obligations 151.6 Pole license agreement obligation 46.7 Deferred income tax liability 153.6 Other noncurrent liabilities 71.4 Total liabilities assumed 2,452.3 Net assets acquired $ 1,620.7 During the second quarter of 2022, the Company recorded measurement period adjustments considered to be immaterial in nature which impacted “Property, plant and equipment,” “Goodwill,” and “Deferred income tax liability.” In the third quarter of 2022, an adjustment was recorded to reflect the Merger’s impact on state and local tax apportionment which resulted in an increase to “Deferred income tax liability” and to “Goodwill” of $ 4.3 million. During the fourth quarter of 2021, the Company recorded measurement period adjustments with the offset recorded as an increase or decrease to "Goodwill" which were considered to be immaterial in nature. Measurement period adjustments were applied retrospectively to the Merger Date. In connection with this acquisition, the Company recorded goodwill attributable to increased access to a diversified customer base, acquired workforce in the United States, Canada, United Kingdom and India with industry expertise and expected synergies. The goodwill related to this acquisition is not deductible for tax purposes. The Company recorded definite-lived intangible assets related to the customer relationships, trade names and technology and an indefinite-lived intangible asset related to FCC licenses. The fair value of the most significant identified intangible assets, customer relationships and trade names, were valued using the multi-period excess earnings method and relief from royalty method, under the income approach. The Company applied judgment which involved the use of significant assumptions with respect to revenue growth rates, customer attrition rate, discount rate and terminal growth rate in relation to the customer relationships and royalty rates and discount rate in relation to the trade names. The fair values of the identifiable intangible assets acquired on the Merger Date were as follows: (dollars in millions) Fair Value Useful Lives Customer relationships $ 850.0 15 years Trade names 108.0 3 to 10 years Technology 5.0 7 years FCC licenses and spectrum usage rights 6.6 Indefinite Total identifiable intangible assets $ 969.6 Transaction costs were expensed as incurred and recorded to “Transaction and integration costs” on the Consolidated Statements of Operations. No transaction costs associated with the Merger Agreement were recorded in 2023. Cincinnati Bell Inc. incurred transaction costs associated with the Merger Agreement of $ 1.2 million in 2022, and $ 0.8 million and $ 54.6 million in the Successor and Predecessor periods of 2021, respectively. Transaction costs of $ 44.0 million that were paid on the Merger Date were recorded in the Predecessor period of 2021 and included as an assumed liability. Additionally, $ 2.9 million of severance associated with a change of control clause in an employee’s contract was recorded in the Predecessor period of 2021 with the final payments completed in 2022. Transaction-related bonuses of $ 5.3 million were also recorded in the Predecessor period of 2021 but due to timing of payroll, were paid prior to the Merger Date. Additional expenses recorded in the Predecessor period of 2021 include certain stock-based compensation awards that were accelerated upon the Merger Date, which resulted in an expense of $ 9.3 million that was recorded to SG&A, and Loss on Extinguishment of Debt of $ 10.7 million due to the repayment of the Corporate Credit Agreement at the Effective Time. Stock-based compensation was paid on the Merger Date and included in the cash consideration for Cincinnati Bell Inc. stock. Acquisition of Paniolo Fiber Assets On August 31, 2021, the Company acquired substantially all of the operating assets of Paniolo Cable Company, LLC (the “Paniolo Acquisition”), previously held by the bankruptcy estate of Paniolo, which include inter-island submarine and middle-mile terrestrial fiber infrastructure assets in Hawaii as well as central offices and landing stations for the submarine fiber. The Company accounted for the Paniolo Acquisition as an asset acquisition under ASC 805-10-55 “Business Combinations” because the assets acquired from Paniolo do not include an assembled workforce, and the gross value of the assets acquired meets the screen test in ASC 805-10-55-5A related to substantially all of the fair value being concentrated in a single asset or group of assets (i.e., the fiber infrastructure assets) and, thus, the assets are not considered a business. The acquisition of Paniolo’s assets augments the Company’s existing backbone network and increases the Company’s total submarine and terrestrial fiber footprint by more than 400 miles. The aggregate purchase price paid upon closing of the Paniolo Acquisition after transactional costs was $ 52.3 million, consisting of $ 29.3 million in cash and $ 23.0 million in committed purchase money financing. The assets are recorded as network equipment and buildings in “Property, plant and equipment, net” on the Consolidated Balance Sheets. As of December 31, 2023, $ 0.5 million and $ 21.4 million of the committed purchase money financing was recorded in “Current portion of long-term debt” and “Long-term debt, less current portion,” respectively, on the Consolidated Balance Sheets. As of December 31, 2022, $ 0.5 million and $ 21.8 million of the committed purchase money financing was recorded in “Current portion of long-term debt” and “Long-term debt, less current portion,” respectively, on the Consolidated Balance Sheets.

Property, Plant and Equipment

Property, Plant and Equipment	12 Months Ended
	Dec. 31, 2023
Property, Plant and Equipment [Abstract]
Property, Plant and Equipment	5. Pro perty, Plant and Equipment Property, plant and equipment is comprised of the following: December 31, Depreciable (dollars in millions) 2023 2022 Lives (Years) Land and rights-of-way $ 133.5 $ 132.8 20 – Indefinite Buildings and leasehold improvements 223.1 201.3 5 – 40 Network equipment 2,516.1 1,970.5 2 – 50 Office software, furniture, fixtures and vehicles 175.3 135.2 2 – 14 Construction in process 152.1 112.2 n/a Gross value 3,200.1 2,552.0 Accumulated depreciation ( 741.0 ) ( 435.2 ) Property, plant and equipment, net $ 2,459.1 $ 2,116.8 In 2022, the Company identified an error in depreciation expense primarily related to capitalized office software costs resulting in the overstatement of depreciation expense. The Company recorded an after-tax adjustment of $ 10.5 million, of which $ 4.0 million related to the 2021 successor period. The impact of the out of period correction is immaterial to the 2022 annual and 2021 successor period consolidated financial statements. Depreciation expense on PP&E, including assets accounted for as finance leases, totaled $ 334.9 million in 2023, $ 375.7 million in 2022, and $ 103.2 million and $ 185.0 million in the Successor and Predecessor periods of 2021, respectively. The portion of depreciation expense associated with cost of providing services was 88 % and 91 % in 2023 and 2022, respectively, and 84 % and 85 % for the Successor and Predecessor periods of 2021, respectively. There are numerous assets included within network equipment resulting in a range of depreciable lives between 2 and 50 years , the majority of which fall within the range of 7 to 22 years . No asset impairment losses were recognized on PP&E in the year ended December 31, 2023 and the Successor and Predecessor periods in 2021. The Company recorded a loss on impairment of long-lived assets of $ 2.7 million in the third quarter of 2022 related to the impairment of leasehold improvements at the Company’s headquarters.

Goodwill and Intangible Assets

Goodwill and Intangible Assets	12 Months Ended
	Dec. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Goodwill and Intangible Assets	6. Goodwill and Intangible Assets Goodwill The changes in the Company's goodwill consisted of the following: (dollars in millions) IT Services and Hardware Network Total Company Goodwill, balance as of December 31, 2021 $ 157.4 $ 488.9 $ 646.3 Activity during the year: Adjustments to prior year Merger 2.5 2.2 4.7 Acquisition of Agile — 39.4 39.4 Adjustments to postretirement and other benefit obligations (Note 11) 19.6 15.4 35.0 Currency translations ( 1.9 ) — ( 1.9 ) Goodwill, balance as of December 31, 2022 177.6 545.9 723.5 Activity during the year: Adjustments to prior year acquisition of Agile — ( 4.4 ) ( 4.4 ) Acquisition of OTT — 1.1 1.1 Currency translations 0.8 — 0.8 Goodwill, balance as of December 31, 2023 $ 178.4 $ 542.6 $ 721.0 During 2023, goodwill in the Network segment decreased by $ 4.4 million due to an adjustment made to the prior year acquisition of Agile and increased by $ 1.1 million due to the acquisition of OTT. See Note 4 for further information related to the Agile and OTT acquisitions. No impairment losses were recognized in goodwill for the years ended December 31, 2023 and 2022, and the Successor and Predecessor periods in 2021 . During the annual review performed in the fourth quarter of 2023, we completed a Step 1 or Quantitative assessment and determined that the fair value of our reporting units exceeded their carrying amounts for the IT Services and Hardware and Network reporting units, including goodwill and, therefore, goodwill was not impaired. A Step 0 or qualitative assessment was performed for the goodwill associated with the Agile Reporting unit. Intangible Assets The Company’s intangible assets consisted of the following: December 31, 2023 December 31, 2022 Gross Gross Carrying Accumulated Net Carrying Accumulated Net (dollars in millions) Amount Amortization Amount Amount Amortization Amount Intangible assets subject to amortization Customer relationships $ 863.5 $ ( 239.3 ) $ 624.2 $ 862.1 $ ( 140.7 ) $ 721.4 Trade names 109.8 ( 36.2 ) 73.6 109.5 ( 20.5 ) 89.0 Technology 6.1 ( 1.9 ) 4.2 6.0 ( 1.0 ) 5.0 Total 979.4 ( 277.4 ) 702.0 977.6 ( 162.2 ) 815.4 Intangible assets not subject to amortization FCC licenses and spectrum usage rights 7.1 — 7.1 6.9 — 6.9 Perpetual licenses 6.8 — 6.8 6.8 — 6.8 Total intangible assets $ 993.3 $ ( 277.4 ) $ 715.9 $ 991.3 $ ( 162.2 ) $ 829.1 As a result of the acquisition of OTT, the Company recorded a nominal finite-lived intangible asset representing the preliminary fair value at the OTT Acquisition Date. Due to the acquisition of Agile, the Company recorded $ 19.4 million of finite-lived intangible assets representing the fair values at the Agile Acquisition Date. See Note 4 for additional information regarding the acquisitions of OTT and Agile. The change in gross carrying amounts for finite-lived intangible assets is also due to foreign currency translation on finite-lived intangible assets denominated in foreign currency. The finite-lived intangibl e assets are amortized over their useful lives based on a number of assumptions including the estimated period of economic benefit and utilization. During the fourth quarter of 2022, the Company purchased perpetual licenses for a block of IP addresses to be used as the Company continues to extend our fiber network and add internet subscribers. The amortization expense for finite-lived intangible assets was $ 114.7 million in 2023, $ 121.4 million in 2022, and $ 41.4 million and $ 9.9 million in the Successor and Predecessor periods in 2021, respectively. In addition to amortization expense, the changes in definite-lived intangible assets from December 31, 2022 to December 31, 2023 are due to foreign currency translation. No impairment losses were recognized on intangible assets for the years ended December 31, 2023 and 2022, and the Successor and Predecessor periods in 2021. The estimated useful lives for each finite-lived intangible asset class are as follows: Customer relationships 15 years Trade names 3 to 10 years Technology 7 years The annual estimated amortization expense for future years is as follows: (dollars in millions) Year ended December 31, 2024 $ 105.6 2025 93.8 2026 86.6 2027 79.4 2028 72.0 Thereafter 264.6 Total $ 702.0

Debt and Other Financing Arrang

Debt and Other Financing Arrangements	12 Months Ended
	Dec. 31, 2023
Debt Disclosure [Abstract]
Debt and Other Financing Arrangements	7. Debt and Other Financing Arrangements The Company’s debt consists of the following: December 31, December 31, (dollars in millions) 2023 2022 Current portion of long-term debt: Credit Agreement - Term B-1 Loans $ 5.0 $ 5.0 Credit Agreement - Term B-2 Loans 6.5 6.5 Credit Agreement - Term B-3 Loans 2.0 — 7 1/4 % Notes due 2023 (1) — 22.8 Paniolo Fiber Assets Financing Arrangement 0.5 0.5 Other financing arrangements 0.2 0.3 Finance lease liabilities 12.9 9.9 Current portion of long-term debt 27.1 45.0 Long-term debt, less current portion: Receivables Facility — 186.9 Network Receivables Facility 36.1 — CBTS Receivables Facility 209.9 — Credit Agreement - Revolving Credit Facility 152.5 223.0 Credit Agreement - Term B-1 Loans 485.0 490.0 Credit Agreement - Term B-2 Loans 630.5 637.0 Credit Agreement - Term B-3 Loans 197.0 — Various Cincinnati Bell Telephone notes (1) 95.1 96.4 Paniolo Fiber Assets Financing Arrangement 21.4 21.8 Digital Access Ohio Advance 6.3 0.9 Other financing arrangements 0.6 — Finance lease liabilities 42.1 43.1 1,876.5 1,699.1 Net unamortized discount ( 5.5 ) ( 4.3 ) Unamortized note issuance costs ( 34.6 ) ( 38.8 ) Long-term debt, less current portion 1,836.4 1,656.0 Total debt $ 1,863.5 $ 1,701.0 (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. Credit Agreement (effective 2021) In connection with the Merger Agreement, at the Effective Time (the date on which the Effective Time occurred, the “Closing Date”), the Company entered into a new Credit Agreement (the "Credit Agreement") and terminated the former Corporate Credit Agreement. The Credit Agreement initially provided for (i) a five-year $ 275 million senior secured revolving credit facility, including both a letter of credit subfacility of up to $ 40 million and a swingline loan subfacility of up to $ 10 million (the “Revolving Credit Facility due 2026”) and (ii) a seven-year $ 150 million senior secured term loan facility (the “Term B-1 Loans”). The Revolving Credit Facility due 2026 matures in September 2026 and the Term B-1 Loans mature in September 2028 . Borrowings under the Term B-1 Loans were used to refinance existing company indebtedness, finance a portion of the fees and expenses relating to the acquisition of the Company and the establishment of the Credit Agreement, and for working capital and general corporate purposes. Borrowings under the Revolving Credit Facility due 2026 may be used to provide ongoing working capital as well as for other general corporate purposes of the Company. The Company (i) incurred deferred financing costs of $ 32.0 million related to the issuance of the Term B-1 Loans and capitalized as a reduction to the outstanding debt balances as of the Merger Date and (ii) incurred deferred financing costs of $ 6.1 million related to the issuance of the Revolving Credit Facility due 2026 and capitalized to “Other noncurrent assets” on the Consolidated Balance Sheets as of the Merger Date. In November 2021, the Company entered into an Amendment (the “Amendment No. 1”) to the Credit Agreement to provide for, among other things, (i) a $ 125.0 million upsize to the Revolving Credit Facility due 2026, increasing the total commitments under the Revolving Credit Facility due 2026 to $ 400.0 million, (ii) a $ 350.0 million incremental increase to the Term B-1 Loans (the “Incremental Term B-1 Loans Increase”), increasing the aggregate principal amount of Term B-1 Loans to $ 500.0 million, and (iii) the incurrence of a new tranche of $ 650.0 million aggregate principal amount of senior secured term loans (the “Term B-2 Loans”). The proceeds of the Incremental Term B-1 Loans Increase and the Term B-2 Loans were used by the Company to redeem in full all of the Company’s existing 7.000 % Senior Notes due 2024 (the “2024 Notes”) and 8.000 % Senior Notes due 2025 (the “2025 Notes”), and to pay fees and expenses in connection thereto. The Term B-2 Loans mature in November 2028 . The Amendment No. 1 also extended the maturity of all Term B-1 Loans to November 2028 and reduced the interest applicable to the Term B-1 Loans and the Revolving Credit Facility due 202 6. At December 31, 2023, borrowings under the Revolving Credit Facility due 2026 were $ 152.5 million, leaving $ 247.5 million available. The Amendment No. 1 also provided for the transition of the benchmark rate of interest under the Credit Agreement from LIBOR to Term SOFR. As a result of the Amendment No. 1 in 2021, the Company incurred deferred financing costs of $ 4.3 million and $ 9.7 million related to the Incremental Term B-1 Loans Increase and the Term B-2 Loans, respectively, and capitalized the amounts as a reduction to the outstanding debt balances in 2021. In addition, the Company incurred deferred financing costs of $ 1.3 million related to increasing the capacity of the Revolving Credit Facility due 2026 and capitalized the amount to “Other noncurrent assets” on the Consolidated Balance Sheets in 2021. In May 2023, the Company entered into an Incremental Amendment to the Credit Agreement (the "Incremental Amendment”) to provide for the incurrence of a new tranche of $ 200.0 million senior secured term loans (the “Term B-3 Loans”). The proceeds of the Term B-3 Loans were used to repay a portion of the loans outstanding under the Revolving Credit Facility due 2026, repay in full the remaining 7 1 / 4 % Notes due 2023 upon maturity in the second quarter of 2023, and for other general corporate purposes. The Term B-3 Loans will mature in November 2028 . All other material terms, conditions and covenants of the Credit Agreement were unchanged by the Incremental Amendment. The Company incurred deferred financing costs of $ 1.9 million related to the issuance of the Term B-3 Loans and capitalized the amount as a reduction to the outstanding debt balance in 2023. Borrowings under the Term B-1 Loans will, following the Amendment No. 1, bear interest, initially, at a rate equal to, at the Company’s option, either: • a base rate determined by reference to the highest of (i) the Federal Funds Rate (determined for any day as the rate per annum equal to the weighted average of the rates on overnight federal funds transactions with members of the Federal Reserve System of the United States arranged by federal funds brokers on such day, as published by the Federal Reserve Bank of New York on the business day next succeeding such day) plus 0.5 %, (ii) the rate of interest in effect for such day as publicly announced from time to time by Goldman Sachs as its “prime rate” in effect at its principal office in New York City and notified to the Company, and (iii) to the extent ascertainable, one month Adjusted Term SOFR (determined as set forth below) plus 1.00 %, plus, in any such case, 2.50 %; or • Adjusted Term SOFR determined by reference to the forward-looking term rate based on the secured overnight financing rate as administered by the Federal Reserve Bank of New York, plus a credit spread adjustment equal to 0.10 %, 0.15 % or 0.25 % for interest periods of one month, three months and six months, respectively, plus, in each case, 3.50 %. From and after the delivery by the Company to the administrative agent for the Credit Agreement of financial statements for the first fiscal quarter ended after the effective date of the Amendment No. 1, the applicable margin over the base rate or Adjusted Term SOFR for the Term B-1 Loans will be in the range of 3.25 % and 3.50 % (for SOFR loans) and 2.25 % and 2.50 % (for base rate loans) based on a pricing grid as determined by reference to the applicable Secured Net Leverage Ratio (as defined in the Credit Agreement) for the most recent four fiscal quarter period for which financial statements have been delivered. Borrowings under the Term B-2 Loans will bear interest, initially, at a rate equal to, at the Company’s option, either: • a base rate determined by reference to the highest of (i) the Federal Funds Rate (determined for any day as the rate per annum equal to the weighted average of the rates on overnight federal funds transactions with members of the Federal Reserve System of the United States arranged by federal funds brokers on such day, as published by the Federal Reserve Bank of New York on the business day next succeeding such day) plus 1/2 of 1%, (ii) the rate of interest in effect for such day as publicly announced from time to time by Goldman Sachs as its “prime rate” in effect at its principal office in New York City and notified to the Company, and (iii) to the extent ascertainable, one month Adjusted Term SOFR (determined as set forth below) plus 1.00 %, plus, in any such case, 2.25 %; or • Adjusted Term SOFR determined by reference to the forward-looking term rate based on the secured overnight financing rate as administered by the Federal Reserve Bank of New York, plus a credit spread adjustment equal to 0.10 %, 0.15 % or 0.25 % for interest periods of one month, three months and six months, respectively, plus, in each case, 3.25 %. From and after the delivery by the Company to the administrative agent for the Credit Agreement of financial statements for the first fiscal quarter ended after the effective date of the Amendment No. 1, the applicable margin over the base rate or Adjusted Term SOFR for the Term B-2 Loans will be in the range of 3.00 % and 3.25 % (for SOFR loans) and 2.00 % and 2.25 % (for base rate loans) based on a pricing grid as determined by reference to the applicable Secured Net Leverage Ratio for the most recent four fiscal quarter period for which financial statements have been delivered. Borrowings under the Term B-3 Loans will bear interest, initially, at a rate equal to, at the Company’s option, either: • a base rate determined by reference to the highest of (i) the Federal Funds Rate (determined for any day as the rate per annum equal to the weighted average of the rates on overnight federal funds transactions with members of the Federal Reserve System of the United States arranged by federal funds brokers on such day, as published by the Federal Reserve Bank of New York on the business day next succeeding such day) plus 1/2 of 1%, (ii) the rate of interest in effect for such day as publicly announced from time to time by Goldman Sachs as its “prime rate” in effect at its principal office in New York City and notified to the Company, and (iii) to the extent ascertainable, one month Adjusted Term SOFR (determined as set forth below) plus 1.00 %, plus, in any such case, 3.00 %; or • Adjusted Term SOFR determined by reference to the forward-looking term rate based on the secured overnight financing rate as administered by the Federal Reserve Bank of New York, plus a credit spread adjustment equal to 0.10 %, 0.15 % or 0.25 % for interest periods of one month, three months and six months, respectively, plus, in each case, 4.00 %. Borrowings under the Revolving Credit Facility due 2026 will, following the Amendment No. 1, bear interest, initially, at a rate equal to, at the Company’s option, either: • a base rate determined by reference to the highest of (i) the Federal Funds Rate (determined for any day as the rate per annum equal to the weighted average of the rates on overnight federal funds transactions with members of the Federal Reserve System of the United States arranged by federal funds brokers on such day, as published by the Federal Reserve Bank of New York on the business day next succeeding such day) plus 1/2 of 1%, (ii) the rate of interest in effect for such day as publicly announced from time to time by Goldman Sachs as its “prime rate” in effect at its principal office in New York City and notified to the Company, and (iii) to the extent ascertainable, one month Adjusted Term SOFR (determined as set forth below) rate plus 1.00 %, plus, in any such case, 2.00 %; or • Adjusted Term SOFR determined by reference to the forward-looking term rate based on the secured overnight financing rate as administered by the Federal Reserve Bank of New York, plus a credit spread adjustment equal to 0.10 %, 0.15 % or 0.25 % for interest periods of one month, three months and six months, respectively, plus, in each case, 3.00 %. From and after the delivery by the Company to the administrative agent for the Credit Agreement of financial statements for the first fiscal quarter ended after the effective date of the Amendment No. 1, the applicable margin over the base rate or Adjusted Term SOFR for the Revolving Credit Facility due 2026 will be in the range of 2.75 % and 3.00 % (for SOFR loans) and 1.75 % and 2.00 % (for base rate loans) based on a pricing grid as determined by reference to the applicable Secured Net Leverage Ratio for the most recent four fiscal quarter period for which financial statements have been delivered. The base rate is subject to a 0.00 % floor. The Adjusted Term SOFR is subject to a floor equal to (i) for the Revolving Credit Facility due 2026, 0.00 %, (ii) for the Term B-1 Loans, 0.25 %, (iii) for the Term B-2 Loans, 0.50 %, and (iv) for the Term B-3 Loans, 0.00 %. In addition, the Company will be required to pay a commitment fee on any unused portion of the Revolving Credit Facility due 2026 at a rate of 0.50 % per annum, or, if the Secured Net Leverage Ratio for the most recent four fiscal quarter period for which financial statements have been delivered is equal to or less than 3.25 to 1.00, 0.375 % per annum. The Company will also pay customary letter of credit fees, including a fronting fee equal to 0.125 % per annum of the dollar equivalent of the maximum amount available to be drawn under all outstanding letters of credit, as well as customary issuance and administration fees. One of the syndicated lenders of the Term B-1 Loans and Term B-3 Loans is a cooperative bank owned by its customers. Annually, this bank distributes patronage in the form of cash and stock in the cooperative based on the Company’s average outstanding loan balance. The Company will recognize the patronage, generally as declared, in “Other (income) expense, net.” The stock component will be recognized at its stated cost basis. The Company may voluntarily repay and reborrow outstanding loans under the Revolving Credit Facility due 2026 at any time without a premium or a penalty, other than customary “breakage” costs with respect to SOFR revolving loans. Guarantors and Security Interests, Credit Agreement All obligations under the Term B-1 Loans, Term B-2 Loans, Term B-3 Loans and Revolving Credit Facility due 2026 are unconditionally guaranteed by the direct parent of the Company and each of the existing and future direct and indirect material, wholly-owned domestic subsidiaries of the Company, subject to certain exceptions (including for Cincinnati Bell Funding LLC, CBTS Funding LLC, Cincinnati Bell Funding Canada Ltd. (and any other similar special purpose receivables financing subsidiary), the Company's joint ventures, subsidiaries prohibited by applicable law or contractual obligation from becoming guarantors, immaterial subsidiaries, unrestricted subsidiaries, foreign subsidiaries, and other customary exceptions as more fully described in the Credit Agreement). Obligations outstanding under the Credit Agreement are secured by perfected first priority pledges of and security interests in (i) the equity interests of the Company held by its direct parent and (ii) substantially all of the assets of the Company and each subsidiary guarantor (subject to customary exceptions as more fully described in the Credit Agreement), including equity interests of each subsidiary guarantor under the Credit Agreement. Corporate Credit Agreement (effective 2017) In connection with the Merger Agreement, at the Effective Time, the outstanding loans under the Corporate Credit Agreement, dated as of October 2, 2017, were paid in full together with accrued interest and unpaid fees. As a result of the Company terminating the Corporate Credit Agreement, certain previously deferred costs and unamortized discount associated with the Corporate Credit Agreement’s Revolving Credit Facility and Tranche B Term Loan due 2024 were written off in the Predecessor period of 2021. The loss on extinguishment of debt associated with the transaction was $ 10.7 million. Accounts Receivable Securitization Facility Cincinnati Bell Inc. and certain of its subsidiaries have an accounts receivable securitization facility ("Receivables Facility"). In the first quarter of 2023, the Company executed certain amendments (the "Amendments") to the Receivables Facility to, among other things: (i) increase the total maximum borrowing capacity to $ 280.0 million, (ii) separate the Receivables Facility into two separate facilities, with (A) the existing Receivables Facility (the “Network Receivables Facility”), as amended by the Amendments, covering receivables originated by certain U.S. subsidiaries of the Company including Cincinnati Bell Telephone Company LLC, Hawaiian Telcom Communications, Inc. and certain of their respective subsidiaries having a maximum borrowing capacity of $ 55.0 million and (B) a new facility (the “CBTS Receivables Facility”) covering receivables originated by certain U.S. and Canadian subsidiaries in the Company's IT Services and Hardware segment including CBTS Technology Solutions LLC and OnX Enterprise Solutions Ltd. having a maximum borrowing capacity of $ 225.0 million, (iii) move the receivables monetization arrangements from the Network Receivables Facility to the CBTS Receivables Facility, and (iv) make applicable technical and conforming changes thereto. In addition, the Amendments extend the renewal dates of each facility to January 2025 and the termination dates of each facility to January 2026 . As of December 31, 2023, the Company had $ 36.1 million in borrowings and $ 16.7 million of letters of credit outstanding under the Network Receivables Facility, leaving $ 2.0 million remaining availability on the total borrowing capacity of $ 54.8 million. As of December 31, 2023, the Company had $ 209.9 million in borrowings and $ 0.5 million of letters of credit outstanding under the CBTS Receivables Facility, leaving $ 9.4 million remaining availability on the total borrowing capacity of $ 219.8 million. The maximum borrowing limit for loans and letters of credit under the Network Receivables Facility and the CBTS Receivables Facility is $ 55.0 million and $ 225.0 million, respectively, in the aggregate. The available borrowing capacity on each facility is calculated monthly based on the quantity and quality of outstanding accounts receivable, and thus may be lower than the maximum borrowing limit. Interest on both the Network Receivables Facility and the CBTS Receivables Facility is based on the SOFR rate plus 1.4 % for borrowings denominated in U.S. dollars. Interest on borrowings denominated in Canadian dollars under the CBTS Receivables Facility is based on the Canadian Dollar Offer Rate ("CDOR") plus 1.4 %. The average interest rate on the Network Receivables Facility and the CBTS Receivables Facility in 2023 was 6.7 % and 6.6 %, respectively. The Company pays letter of credit fees on letters of credit drawn under each securitization facility and also pays commitment fees on the unused portions of each respective total facility. Under the Network Receivables Facility and the CBTS Receivables Facility, certain U.S. and Canadian subsidiaries, as originators, sell their respective trade receivables on a continuous basis to Cincinnati Bell Funding LLC (“CBF”), Cincinnati Bell Funding Canada Ltd. ("CBFC") or CBTS Funding LLC ("CBTSF"), wholly-owned consolidated subsidiaries of the Company. Although CBF, CBFC and CBTSF are wholly-owned consolidated subsidiaries of the Company, CBF, CBFC and CBTSF are legally separate from the Company and each of the Company’s other subsidiaries. Upon and after the sale or contribution of the accounts receivable to CBF, CBFC or CBTSF, such accounts receivable are legally assets of CBF, CBFC and CBTSF and, as such, are not available to creditors of other subsidiaries or the parent company. As a result of the Amendments, the CBTS Receivables Facility includes an option for CBTSF to sell, rather than borrow against, certain receivables on a non-recourse basis. As of December 31, 2023, the outstanding balance of certain accounts receivable sold, rather than borrowed against, was $ 3.5 million. The transferors sell their respective trade receivables on a continuous basis to CBF, CBFC or CBTSF. In turn, CBF, CBFC or CBTSF grants, without recourse, a senior undivided interest in the pooled receivables to various purchasers, including commercial paper conduits, in exchange for cash while maintaining a subordinated undivided interest in the form of over-collateralization in the pooled receivables. The transferors have agreed to continue servicing the receivables for CBF, CBFC and CBTSF at market rates; accordingly, no servicing asset or liability has been recorded. For the purposes of consolidated financial reporting, the Network Receivables Facility and the CBTS Receivables Facility are accounted for as secured financing. Because CBF has the ability to prepay the Network Receivables Facility and CBFC and CBTSF have the ability to prepay the CBTS Receivables Facility at any time by making a cash payment, the transfers do not qualify for "sale" treatment on a consolidated basis under ASC 860, "Transfers and Servicing." On February 2, 2024, the Company executed an amendment to the CBTS Receivables Facility to extend the renewal date of the facility to April 2025 and replace CDOR, the benchmark rate of interest for borrowings denominated in Canadian dollars, with the Canadian Overnight Repo Rate Average ("CORRA"). As a result of the amendment, borrowings denominated in Canadian dollars under the CBTS Receivables Facility will bear interest based on CORRA plus 1.6 %. All other material terms and conditions of the CBTS Receivables Facility were unchanged by the amendment. Cincinnati Bell Telephone Notes In 1998, CBT's predecessor issued $ 150.0 million in aggregate principal of 6.30 % unsecured senior notes due 2028 (the "CBT Notes"), which are guaranteed on a subordinated basis by the Company but not its subsidiaries. The indenture related to the CBT Notes does not subject the Company or CBT to restrictive financial covenants, but it does contain a covenant providing that if CBT incurs certain liens on its property or assets, CBT must secure the outstanding CBT Notes equally and ratably with the indebtedness or obligations secured by such liens. The liens under the Credit Agreement resulted in the CBT Notes being secured equally and ratably with the collateral granted by CBT that secures the obligations under the Credit Agreement. The maturity date of the CBT notes is in 2028, and the CBT Notes may be redeemed at any time at a redemption price equal to the greater of 100 % of the principal amount of the CBT Notes to be redeemed or the sum of the present values of the remaining scheduled payments of principal and interest to maturity, plus accrued interest to the redemption date. The indenture governing the CBT Notes provides for customary events of default, including for failure to make any payment when due and for one or more defaults of any other existing debt instruments of the Company or CBT that exceeds $ 20.0 million, in the aggregate. Paniolo Fiber Assets Financing Arrangement In connection with the Paniolo Acquisition in the third quarter of 2021, the Company’s wholly-owned subsidiary, Hawaiian Telcom Inc. (“HTI”), entered into a purchase money financing agreement to finance a portion of the Paniolo Acquisition. The Paniolo fiber assets financing arrangement provides for a five-year $ 23.0 million loan secured by the Paniolo assets acquired in the transaction. In the third quarter of 2023, the Company executed an amendment to the Paniolo fiber assets financing arrangement to replace LIBOR, the benchmark rate of interest, with Adjusted Term SOFR which is defined in the amendment as Term SOFR plus 0.1 %. As a result of the amendment, borrowings under the Paniolo fiber assets financing arrangement bear interest at a rate per annum equal to Adjusted Term SOFR plus 3.0 %. All other material terms and conditions of the Paniolo fiber assets financing arrangement were unchanged by the amendment. The Company guarantees HTI’s borrowings under the Paniolo fiber assets financing arrangement. Digital Access Ohio Advance The Company holds an interest in DAO (Note 1), which entered into a secured promissory note ("Digital Access Ohio Advance") to finance a portion of DAO's operations. The Digital Access Ohio Advance matures in July 2033 , and the total borrowings shall not exceed $ 20.0 million in the aggregate. Borrowings under the Digital Access Ohio Advance bear interest at a rate per annum equal to the long term applicable federal rate plus 1.0 %. The interest will continue to accrue and is due either upon maturity in July 2033 or upon repayment if that occurs prior to the maturity date. The Company guarantees DAO's borrowings under the Digital Access Ohio Advance. As of December 31, 2023, borrowings under the Digital Access Ohio Advance totaled $ 6.3 million. Finance Lease Liabilities Finance lease liabilities represent our obligation for certain leased assets, including vehicles and various equipment. These leases generally contain renewal or buyout options. Debt Maturity Schedule The following table summarizes our annual principal maturities of debt and other financing arrangements, excluding lease obligations, for the five years subsequent to December 31, 2023, and thereafter: Other financing (dollars in millions) Debt arrangements Year ended December 31, 2024 $ 14.0 $ 0.2 2025 14.0 0.2 2026 432.9 0.2 2027 13.5 0.1 2028 1,359.9 0.1 Thereafter 6.3 — 1,840.6 0.8 Net unamortized discount ( 5.5 ) — Unamortized note issuance costs ( 34.6 ) — Total debt $ 1,800.5 $ 0.8 Deferred Financing Costs Deferred financing costs are costs incurred in connection with obtaining long-term financing and renewing revolving credit agreements. Deferred financing costs are amortized on the effective interest method. In 2023, the Company incurred deferred financing costs of $ 0.4 million and $ 1.7 million related to amendments to the Network Receivables Facility and CBTS Receivables Facility, respectively, and $ 1.9 million related to the issuance of the Term B-3 loans . The Company incurred deferred financing costs of $ 0.1 million related to amending the Receivables Facility in 2022. In the Predecessor period of 2021, the Company incurred deferred financing costs of $ 1.0 million related to consent solicitation fees incurred for the Company’s notes and amending and renewing revolving credit agreements. As a result of the Company terminating the Corporate Credit Agreement, deferred financing costs of $ 1.2 million and $ 6.1 million associated with the Corporate Credit Agreement’s Revolving Credit Facility and Tranche B Term Loan due 2024, respectively, were written off in the Predecessor period of 2021. In the Successor period of 2021, the Company incurred deferred financing costs of $ 53.4 million associated with the issuance and the Amendment No. 1 of the Credit Agreement. In addition, the Company incurred deferred financing costs in the Successor period of 2021 of $ 3.9 million related to the consent fees paid to the holders of the 2024 Notes and 2025 Notes. The Company wrote-off deferred financing costs associated with the extinguishment of debt of $ 3.6 million in the Successor period of 2021. The Company records costs incurred in connection with obtaining revolving credit agreements as an asset. As of December 31, 2023 and 2022, deferred financing costs recorded to "Other non-current assets" totaled $ 4.9 million and $ 5.3 million, respectively. Amortization of deferred financing costs, included in "Interest expense" in the Consolidated Statements of Operations, totaled $ 8.4 million in 2023, $ 7.1 million in 2022, and $ 2.0 million and $ 4.2 million in the Successor and Predecessor periods in 2021, respectively. Debt Covenants Credit Agreement The Credit Agreement has a financial covenant that requires the Company to maintain a Senior Secured Net Leverage Ratio (as defined in the Credit Agreement) of 5.75 to 1.00 when the utilization under the Revolving Credit Facility due 2026 exceeds 35 %. In addition, the Credit Agreement contains customary affirmative and negative covenants, including but not limited to, restrictions on the Company's ability to incur additional indebtedness, create liens, pay dividends, make certain investments, and prepay other indebtedness, sell, transfer, lease, or dispose of assets and enter into, or undertake, certain liquidations, mergers, consolidations or acquisitions. The Credit Agreement contains customary events of default (which are in some cases subject to certain exceptions, thresholds and grace periods), including, but not limited to, nonpayment of principal or interest, failure to perform or observe covenants, breaches of representations and warranties, cross-defaults with certain other indebtedness, certain bankruptcy-related events or proceedings, final monetary judgments or orders, ERISA defaults, invalidity of loan documents or guarantees, and certain change of control events. If the Company was to violate any of its covenants and was unable to obtain a waiver, it would be considered a default. If the Company was in default under the Credit Agreement, no additional borrowings under the Revolving Credit Facility due 2026 would be available until the default was waived or cured. The Term B-1 Loans, Term B-2 Loans and Term B-3 Loans are subject to the same affirmative and negative covenants and events of default as the Revolving Credit Facility due 2026, except that a breach of the financial covenants will not result in an event of default under the Term B-2 Loans unless and until the agent or a majority in interest of the lenders under the Revolving Credit Facility due 2026 have terminated their commitments under the Revolving Credit Facility due 2026 and accelerated the loans then outstanding under the Revolving Credit Facility due 2026 in response to such breach in accordance with the terms and conditions of the Credit Agreement. Repayment of Notes In the second quarter of 2023, the Company repaid the remaining $ 22.3 million outstanding principal amount of its 7 1/4 % Notes due 2023 and related accrued and unpaid interest due upon the maturity date of the notes. Extinguished Notes In the fourth quarter of 2021, the Company redeemed all of the $ 650 million of 7 % Senior Notes due 2024 and $ 350 million of 8 % Senior Notes due 2025 at redemption prices of 101.750 % and 104.000 %, respectively, primarily using proceeds from the Incremental Term B-1 Loans Increase and the Term B-2 Loans. As a result, the Company recorded a loss on extinguishment of debt of $ 2.1 million in the fourth quarter of 2021.

Leases

Leases	12 Months Ended
	Dec. 31, 2023
Leases [Abstract]
Leases	8. Le ases Lessee Disclosures The Company primarily leases real estate for offices, retail stores and central offices, as well as equipment, cell towers, designated space on third party towers and fleet vehicles. The Company leases its real estate for terms between 1 and 55 years , its equipment for terms between 3 and 10 years , its cell towers for terms between 5 and 21 years, its designated space on third party cell towers for terms between 5 and 55 years and its vehicles for terms of 5 years. Our leases have various expiration dates through 2071 , some of which include options to extend the leases for up to 15 years. Upon adoption of ASC 842 on January 1, 2019, the Company elected not to recognize leases with terms of one-year or less on the balance sheet. The Company's leases generally do not provide an implicit rate, and therefore the Company uses its incremental borrowing rate as the discount rate when measuring operating lease liabilities. The incremental borrowing rate represents an estimate of the interest rate the Company would incur at lease commencement to borrow an amount equal to the lease payments on a collateralized basis over the term of the lease. Supplemental balance sheet information related to the Company's leases was as follows: December 31, December 31, (dollars in millions) Balance Sheet Location 2023 2022 Operating lease assets, net of amortization Operating lease right-of-use assets $ 78.3 $ 73.1 Finance lease assets, net of amortization Property, plant and equipment, net 21.9 16.5 Operating lease liabilities: Current operating lease liabilities Other current liabilities 12.8 12.7 Noncurrent operating lease liabilities Operating lease liabilities 72.0 66.1 Total operating lease liabilities 84.8 78.8 Finance lease liabilities: Current finance lease liabilities Current portion of long-term debt 12.9 9.9 Noncurrent finance lease liabilities Long-term debt, less current portion 42.1 43.1 Total finance lease liabilities $ 55.0 $ 53.0 The components of lease expense were as follows: Successor Predecessor (dollars in millions) Year Ended December 31, 2023 Year Ended December 31, 2022 September 8, 2021 to December 31, 2021 January 1, 2021 to September 7, 2021 Operating lease cost $ 16.0 $ 14.6 $ 4.3 $ 8.1 Short-term lease cost 0.6 0.3 0.1 0.2 Variable lease cost 3.5 3.6 1.1 2.3 Finance lease cost: Depreciation on leased assets 8.0 4.7 2.0 4.5 Interest on lease liabilities 3.9 3.5 1.2 2.9 Total lease cost $ 32.0 $ 26.7 $ 8.7 $ 18.0 Supplemental cash flow information related to leases was as follows: Successor Predecessor (dollars in millions) Year Ended December 31, 2023 Year Ended December 31, 2022 September 8, 2021 to December 31, 2021 January 1, 2021 to September 7, 2021 Supplemental Cash Flows Information Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from finance leases $ 3.9 $ 3.4 $ 1.2 $ 2.9 Operating cash flows from operating leases $ 13.4 $ 11.1 $ 3.4 $ 7.2 Financing cash flows from finance leases $ 12.4 $ 8.3 $ 3.9 $ 9.9 Right-of-use assets obtained in exchange for lease obligations: New operating leases $ 15.7 $ 12.2 $ 5.4 $ 11.5 New finance leases $ 14.4 $ 12.3 $ 2.0 $ 3.8 Additional quantitative information related to leases was as follows: December 31, December 31, Weighted Average Remaining Lease Term 2023 2022 Operating leases 14.03 years 12.06 years Finance leases 4.82 years 5.67 years Weighted Average Discount Rate Operating leases 7.34 % 5.85 % Finance leases 7.55 % 7.23 % Future minimum lease payments under non-cancellable leases as of December 31, 2023 are as follows: (dollars in millions) Operating Leases Finance Leases Year ended December 31, 2024 $ 15.5 $ 16.8 2025 13.1 13.9 2026 11.4 10.8 2027 9.5 9.6 2028 9.1 8.5 Thereafter 91.9 7.5 Total future minimum lease payments 150.5 67.1 Less imputed interest ( 64.7 ) ( 11.2 ) Total $ 85.8 $ 55.9 As of December 31, 2023, we have additional future payments on operating leases that have not yet commenced for $ 1.0 million. These leases will commence in 2024 and have lease terms of three to thirty-three years. As of December 31, 2023, we have additional future payments for a finance lease that has not yet commenced for $ 0.9 million. This lease will commence in 2024 and has a lease term of five years . Sale-Leaseback Disclosures On August 31, 2021, the Company simultaneously exercised its bargain purchase option on real property located in Cincinnati, Ohio, previously classified as a finance lease, and sold it to a third party for $ 9.1 million. Net proceeds from the transactions were approximately $ 6.6 million after transactional costs. Concurrently with the sale, the Company entered into an operating lease arrangement with the third party purchaser of the property for a portion of the building to maintain use of the location as an office space. The transaction qualified for sale-leaseback accounting in accordance with ASC 842, and the Company recognized a gain on the sale of $ 2.8 million in August, 2021. The Company recorded an operating lease right-of-use asset and liability of $ 7.7 million related to the leaseback agreement on September 1, 2021. Lessor Disclosures The Company has operating leases related to its dark fiber arrangements for terms between 1 and 30 years . Our leases have various expiration dates through 2048 , some of which include options to extend the lease. The Company recorded lease income related to operating lease payments of $ 3.4 million in 2023, $ 3.0 million in 2022, and $ 0.9 million and $ 2.0 million in the Successor and Predecessor periods of 2021, respectively. The Company owns the underlying assets associated with its operating leases and records them in "Property, plant and equipment, net" on the Consolidated Balance Sheets. Future minimum lease payments to be received under non-cancellable leases as of December 31, 2023 are as follows: (dollars in millions) Operating Leases Year ended December 31, 2024 $ 3.4 2025 3.1 2026 2.9 2027 2.9 2028 2.6 Thereafter 11.8 Total future minimum lease payments 26.7 Less imputed interest ( 7.7 ) Total $ 19.0

Commitments and Contingencies

Commitments and Contingencies	12 Months Ended
	Dec. 31, 2023
Commitments and Contingencies Disclosure [Abstract]
Commitments and Contingencies	9. Commitments and Contingencies Other Installment Financing Arrangements Prior to the acquisition of Hawaiian Telcom in July 2018, Hawaiian Telcom had an open dispute related to jointly-owned utility poles. Each of the electric utilities for the four counties in the State of Hawaii had separate agreements with Hawaiian Telcom for the joint ownership and maintenance of utility poles along with other third parties, such as the State of Hawaii. The agreements set forth various circumstances requiring pole removal, installation and replacement and the sharing of costs among the joint pole owners. The agreements allowed for the cost of work done by one joint pole owner to be shared by the other joint pole owners based on the apportionment of costs in the agreements. Generally, the electric utilities had maintained, replaced and installed the majority of the jointly-owned poles and had billed the other joint pole owners for their respective share of the costs. Hawaiian Telcom had a disagreement with the common owner of the utilities in three of the counties in Hawaii regarding the amount the utilities were requesting for their share of the capitalized costs. The agreement approved by the Hawaii Public Utilities Commission in October 2018 provided for the transfer of Hawaiian Telcom’s ownership responsibility of the poles to Hawaiian Electric Company (“HEC”) and Hawaiian Telcom to pay a fixed annual fee to HEC for continued use of the poles. The agreement, referred to as the Pole License Agreement, has a duration of 10 years at a fixed rate with two renewal options each for five year terms. Due to the continuing involvement by the Company, this transaction does not meet the requirements to be accounted for as a sale-leaseback, and therefore it has been treated as a financing obligation. In connection with the Merger, the carrying value of the financing obligation was remeasured and includes a fair value step-up of $ 12.2 million recorded as of the Merger Date (see Note 10). As of December 31, 2023, the Company has a liability recorded of $ 43.6 million related to the payments for the use of the poles, of which $ 2.8 million is recognized within "Other current liabilities" in the Consolidated Balance Sheets. As of December 31, 2022, the Company had a liability recorded of $ 46.6 million related to the payments for the use of the poles, of which $ 3.0 million is recognized within “Other current liabilities” in the Consolidated Balance Sheets. The IT Services and Hardware segment entered into an agreement in June 2018 for a building to use in its data center operations. Structural improvements were made to the facility in excess of normal tenant improvements and, as such, we are deemed the accounting owner of the facility. The term of the agreement for the building shell is a duration of 10 years with two renewal options each with a two-year term. In connection with the Merger, the carrying value of the financing obligation was remeasured and includes a fair value step-up of $ 0.7 million recorded as of the Merger Date (see Note 10). As of December 31, 2023, the Company has a liability of $ 3.0 million related to the financing arrangement, of which $ 0.6 million is recognized within “Other current liabilities” and $ 2.4 million is recognized within "Other noncurrent liabilities" in the Consolidated Balance Sheets. As of December 31, 2022, the Company had a liability of $ 3.5 million related to the financing arrangement, of which $ 0.6 million is recognized within “Other current liabilities” and $ 2.9 million is recognized within "Other noncurrent liabilities" in the Consolidated Balance Sheets. The future minimum payments under the base agreements, as well as the renewal options for each arrangement which the Company expects to exercise, are as follows: (dollars in millions) Year ended December 31, 2024 $ 5.8 2025 5.8 2026 5.8 2027 5.8 2028 4.3 Thereafter 36.0 Total future minimum financing obligation payments 63.5 Less imputed interest ( 16.9 ) Total $ 46.6 Trans-Pacific Submarine Cable Commensurate with the acquisition of Hawaiian Telcom, the Company gained access to the SEA-US cable. In August 2014, Hawaiian Telcom joined several other telecommunication companies to form a consortium to build and operate the SEA-US cable. The total system cost was $ 235.0 million and was primarily composed of a supply contract with the lead contractor. The Company has a fractional ownership in the system and recognizes its fractional share at cost. In addition, the Company constructed a cable landing station in Hawaii and provides cable landing services. The system was completed in August 2017. The Company has excess capacity on its share of the SEA-US cable that it makes available to other carriers for a fee. The Company has contracted and expects to enter into additional IRU agreements with other carriers for use of this excess fiber circuit capacity . The Company may receive up-front payments for services to be delivered over a period of up to 25 years. The Company has a remaining obligation related to the sale of capacity and other services of $ 18.8 million and $ 18.1 million at December 31, 2023 and 2022, respectively, recorded in "Other noncurrent liabilities" and $ 1.6 million and $ 1.4 million at December 31, 2023 and 2022, respectively, recorded in "Other current liabilities" in the Consolidated Balance Sheets, which was previously received in up-front payments. T he Company is recognizing revenue for the cable on a straight-line basis over the contract term. The Company recognizes a financing component in accordance with ASC 606 associated with the up-front payments as the contract terms range up to 25 years. Dedicated Fiber Agreement In the Predecessor period of the third quarter of 2021, the Company entered into an IRU agreement to provide dedicated fiber routes for a period of 20 years. During 2023 and 2022, the Company incurred costs of $ 16.3 million and $ 2.2 million, respectively, related to the dedicated fiber route build, with all such costs capitalized. Nominal costs were incurred by the Company in 2021. As of December 31, 2023, the Company has a liability of $ 58.6 million for services to be delivered related to up-front payments previously received, of which $ 2.1 million is recorded in “Other current liabilities” and $ 56.5 million is recorded in “Other noncurrent liabilities” in the Consolidated Balance Sheets. As of December 31, 2022, the Company has a liability of $ 52.9 million for services to be delivered related to up-front payments previously received, of which $ 1.4 million is recorded in “Other current liabilities” and $ 51.5 million is recorded in “Other noncurrent liabilities” in the Consolidated Balance Sheets. The Company will receive additional up-front payments for the remaining contract revenue upon completing certain milestones relate d to the build of the dedicated fiber routes. Revenue for the IRU agreement will be recognized on a straight-line basis over the contract term. The Company recognizes a financing component in accordance with ASC 606 associated with the up-front payments as the contract term is 20 years. Involuntary Events and Contingencies In August 2023, wildfires ignited on Maui and Hawaii islands and spread rapidly due to extreme wind conditions caused in part by Hurricane Dora which traveled 800 miles offshore west of Maui. The fires caused widespread damage to Lahaina town on the island of Maui and the surrounding area, including physical loss and damage to certain of the Company’s fiber and copper assets and Company owned equipment located on customer premises. The Company experienced the loss of business income immediately following the fires and is expected to continue to experience loss of business income for an unknown amount of time. The Company expects to file insurance claims for the physical loss and damages experienced in Lahaina and for business income losses resulting from the matter. As of December 31, 2023, the Company has a general liability recorded related to this matter of $ 4.0 million, of which $ 2.0 million is recorded in "Other current liabilities" and $ 2.0 million is recorded in "Other noncurrent liabilities" in the Consolidated Balance Sheets. An offsetting receivable of $ 2.0 million associated with amounts expected to be reimbursed by insurance has been recorded in "Other noncurrent assets" in the Consolidated Balance Sheets. Additionally, due to the age of certain of the impacted assets, the net book value that was disposed in 2023 due to fire damage was nominal in nature. In October 2023, attorneys filed a Second Amended Complaint in a proposed class action lawsuit filed in Hawaii state court, adding the Company along with other telecommunications companies and private and public landowners. Legal expenses of $ 1.1 million related to this matter have been recorded in the year ended December 31, 2023. In the fourth quarter of 2023, the Company committed $ 2.5 million to a voluntary fund that would be used to pay victims of death o r serious physical injury from the wildfires on Maui and is recorded in "Accounts payable" in the Consolidated Balance Sheets. The contribution was funded in March 2024. Asset Retirement Obligations Asset retirement obligations exist for certain assets. In conjunction with the acquisition of Hawaiian Telcom, the Company recognized certain asset retirement obligations related to underground tanks and environmental remediation that will occur prior to the retirement of certain assets. These obligations are recorded in "Other noncurrent liabilities" in the Consolidated Balance Sheets. Additionally, the Company recognizes certain asset retirement obligations related to data center leases which are recorded in "Accounts payable" in the Consolidated Balance Sheets. The following table presents the activity for the Company’s asset retirement obligations: Year Ended Year Ended (dollars in millions) December 31, 2023 December 31, 2022 Balance, beginning of period $ 7.2 $ 7.3 Liabilities incurred — — Liabilities settled ( 0.2 ) ( 0.4 ) Accretion expense 0.3 0.3 Balance, end of period $ 7.3 $ 7.2 Indemnifications During the normal course of business, the Company makes certain indemnities, commitments, and guarantees under which it may be required to make payments in relation to certain transactions. These include (a) intellectual property indemnities to customers in connection with the use, sale, and/or license of products and services, (b) indemnities to customers in connection with losses incurred while performing services on their premises, (c) indemnities to vendors and service providers pertaining to claims based on negligence or willful misconduct of the Company, (d) indemnities involving the representations and warranties in certain contracts, and (e) outstanding letters of credit which totaled $ 17.2 million as of December 31, 2023. In addition, the Company has made contractual commitments to several employees providing for payments upon the occurrence of certain prescribed events. The majority of these indemnities, commitments, and guarantees do not provide for any limitation on the maximum potential for future payments that the Company could be obligated to make. As permitted under Ohio law, the Company has agreements whereby the Company indemnifies its officers and directors for certain events or occurrences while the officer or director is, or was, serving at the Company's request in such capacity. The term of the indemnification period is for the lifetime of the officer or director. The maximum potential amount of future payments the Company could be required to make under these indemnification agreements is unlimited; however, the Company has a director and officer insurance policy that limits the Company's exposure and enables the Company to recover a portion of any future amounts paid. As a result of the Company's insurance policy coverage, the Company believes the estimated fair value of these indemnification agreements is minimal. The Company has no liabilities recorded for these agreements as of December 31, 2023 or 2022. Purchase Commitments The Company has purchase commitments and blanket purchase requisitions related to certain goods and services. These agreements typically range from one to three years . As of December 31, 2023 and 2022, the minimum commitments associated with these arrangements that are noncancellable in nature, are not considered significant. The Company generally has the right to cancel open purchase orders prior to delivery and to terminate the contracts without cause. Litigation Cincinnati Bell and its subsidiaries are subject to various lawsuits, actions, proceedings, claims and other matters asserted under laws and regulations in the normal course of business. We believe the liabilities accrued for legal contingencies in our consolidated financial statements, as prescribed by GAAP, are adequate in light of the probable and estimable contingencies. However, there can be no assurances that the actual amounts required to satisfy alleged liabilities from various legal proceedings, claims, tax examinations, and other matters, and to comply with applicable laws and regulations, will not exceed the amounts reflected in our consolidated financial statements. As such, costs, if any, that may be incurred in excess of those amounts provided as of December 31, 2023, cannot be reasonably determined.

Financial Instruments and Fair

Financial Instruments and Fair Value Measurements	12 Months Ended
	Dec. 31, 2023
Fair Value Disclosures [Abstract]
Financial Instruments and Fair Value Measurements	10. Financial Instruments and Fair Value Measurements Cash Flow Hedging Cash Flow Hedges Not Designated as Hedging Instruments The Company uses non-designated cash flow hedges including interest rate swap agreements and interest rate cap agreements to minimize its exposure to interest rate fluctuations on variable rate debt borrowings. Interest rate swaps involve the exchange of fixed and variable rate interest payments and do not represent an actual exchange of the underlying notional amounts between parties. Interest rate caps provide that the counterparty will pay the purchaser at the end of each contractual period in which the index interest rate exceeds the contractually agreed upon cap rate. In the second quarter of 2022, the Company entered into three forward starting non-amortizing interest rate swaps to convert variable rate debt to fixed rate debt. The interest rate swaps have notional amounts of $ 175.0 million, $ 115.0 million and $ 85.0 million resulting in interest payments based on an average fixed rate per swap of 2.9185 %, 2.8520 % and 2.8605 %, respectively, plus the applicable margin per the requirements in the Credit Agreement. The interest rate swaps expire in May 2026 . In the second quarter of 2022, the Company entered into two interest rate cap agreements to limit exposure to interest rate risk on variable rate debt. The interest rate caps each have a cap rate of 3.0 % with notional amounts of $ 200.0 million and $ 175.0 million and deferred premiums of $ 6.7 million and $ 5.3 million, respectively. The deferred premiums will be paid on a monthly basis over the term of the respective interest rate cap. The interest rate caps expire in May 2026 . In the first quarter of 2023, the Company entered into three forward starting non-amortizing interest rate swaps to convert variable rate debt to fixed rate debt. The interest rate swaps have notional amounts of $ 150.0 million, $ 150.0 million and $ 100.0 million resulting in interest payments based on an average fixed rate per swap of 3.6875 %, 3.6500 % and 3.5095 %, respectively, plus the applicable margin per the requirements in the Credit Agreement. The interest rate swaps expire in March 2027 . In January 2024, the Company entered into a forward starting non-amortizing interest rate swap to convert variable rate debt to fixed rate debt. The interest rate swap has a notional amount of $ 200.0 million resulting in interest payments based on an average fixed rate per swap of 4.3030 %, plus the applicable margin per the requirements in the Credit Agreement. The interest rate swap expires in July 2025 . The fair value of the Company's interest rate swaps and interest rate caps are impacted by the credit risk of both the Company and its counterparties. The Company has agreements with its derivative financial instrument counterparties that contain provisions providing that if the Company defaults on the indebtedness associated with its derivative financial instruments, then the Company could also be declared in default on its derivative financials instruments obligations. In addition, the Company minimizes nonperformance risk on its derivative instruments by evaluating the creditworthiness of its counterparties, which are limited to major banks and financial institutions. The Company does not apply hedge accounting to the interest rate swaps and interest rate caps and records all mark-to-market adjustments directly to "Other (income) expense, net" in the Consolidated Statements of Operations. The fair values of the interest rate swaps and interest rate caps are categorized as Level 2 in the fair value hierarchy as they are based on well-recognized financial principles and available market data. As of December 31, 2023, the fair values of the interest rate swaps and interest rate caps are recorded in the Consolidated Balance Sheets as follows: Quoted Prices in Significant Significant December 31, Active Markets Observable Inputs Unobservable Inputs (dollars in millions) Balance Sheet Location 2023 Level 1 Level 2 Level 3 Assets: Interest Rate Swap Other current assets $ 10.7 $ — $ 10.7 $ — Interest Rate Swap Other noncurrent assets $ 1.8 $ — $ 1.8 $ — Interest Rate Cap Other current assets $ 3.2 $ — $ 3.2 $ — Liabilities: Interest Rate Swap Other noncurrent liabilities $ 3.8 $ — $ 3.8 $ — Interest Rate Cap Other noncurrent liabilities $ 2.6 $ — $ 2.6 $ — As of December 31, 2022, the fair values of the interest rate swaps and interest rate caps are recorded in the Consolidated Balance Sheets as follows: Quoted Prices in Significant Significant December 31, Active Markets Observable Inputs Unobservable Inputs (dollars in millions) Balance Sheet Location 2022 Level 1 Level 2 Level 3 Assets: Interest Rate Swap Other current assets $ 7.2 $ — $ 7.2 $ — Interest Rate Swap Other noncurrent assets $ 5.1 $ — $ 5.1 $ — Interest Rate Cap Other current assets $ 3.8 $ — $ 3.8 $ — Liabilities: Interest Rate Cap Other noncurrent liabilities $ 2.4 $ — $ 2.4 $ — The following table summarizes the location of gains in the Consolidated Statements of Operations that were recognized during the years ended December 31, 2023 and 2022, in addition to the derivative contract type: Year ended Year ended (dollars in millions) Statement of Operations Location December 31, 2023 December 31, 2022 Interest Rate Swap Other (income) expense, net $ ( 9.3 ) $ ( 11.7 ) Interest Rate Cap Other (income) expense, net $ ( 3.8 ) $ ( 0.3 ) Interest Rate Hedges In the second quarter of 2018, the Company entered into one forward starting non-amortizing interest rate swap with a notional amount of $ 300.0 million to convert variable rate debt to fixed rate debt. The interest rate swap became effective in June 2018 with an expiration date in June 2023 . The interest rate swap resulted in interest payments based on an average fixed rate of 2.938 % plus the applicable margin per the requirements in the Company's former Corporate Credit Agreement. In the first quarter of 2019, the Company entered into three forward starting non-amortizing interest rate swaps, with a notional amount of $ 89.0 million each, to convert variable rate debt to fixed rate debt. The interest rate swaps became effective in March 2019 with expiration dates in March 2024 . The interest rate swaps resulted in interest payments based on an average fixed rate per swap of 2.275 %, 2.244 % and 2.328 % plus the applicable margin per the requirements in the Company's former Corporate Credit Agreement. Upon inception, the interest rate swaps were designated as cash flow hedges under ASC 815, with gains and losses, net of tax, measured on an ongoing basis recorded in accumulated other comprehensive loss. The fair value of the interest rate swaps was categorized as Level 2 in the fair value hierarchy as they were based on well-recognized financial principles and available market data. The Company terminated four interest rate swaps in the Predecessor period of the third quarter of 2021 in connection with the repayment in full of the Term Loan B under the Company's former Corporate Credit Agreement that occurred as part of the Merger Agreement. The amount of gains recognized in Accumulated Other Comprehensive Income ("AOCI") (effective portion) net of reclassifications into earnings is as follows: Successor Predecessor Year Ended Year Ended September 8, 2021 to January 1, 2021 to (dollars in millions) December 31, 2023 December 31, 2022 December 31, 2021 September 7, 2021 Interest Rate Swap $ — $ — $ — $ 5.3 The amount of losses reclassified from AOCI into earnings is as follows: Successor Predecessor Year Ended Year Ended September 8, 2021 to January 1, 2021 to (dollars in millions) Statement of Operations Location December 31, 2023 December 31, 2022 December 31, 2021 September 7, 2021 Interest Rate Swap Other (income) expense, net $ — $ — $ — $ ( 20.1 ) Interest Rate Swap Interest expense $ — $ — $ — $ ( 5.4 ) Disclosure on Financial Instruments The carrying values of the Company's financial instruments approximate the estimated fair values as of December 31, 2023 and December 31, 2022, except for the Company's long-term debt and other financing arrangements. The carrying and fair values of these items are as follows: December 31, 2023 December 31, 2022 (dollars in millions) Carrying Value Fair Value Carrying Value Fair Value Long-term debt, including current portion* $ 1,842.3 $ 1,815.1 $ 1,686.5 $ 1,647.0 Other financing arrangements 46.6 40.4 50.1 45.3 * Excludes finance leases, other financing arrangements and note issuance costs In connection with the Merger, the carrying values of the Company's long-term debt and other financing arrangements include fair value adjustments as of the Merger Date. The fair value of our long-term debt was based on closing or estimated market prices of the Company’s debt at December 31, 2023 and December 31, 2022, which is considered Level 2 of the fair value hierarchy. The fair value of the other financing arrangements was calculated using a discounted cash flow model that incorporates current borrowing rates for obligations of similar duration, which is considered Level 3 of the fair value hierarchy. As of December 31, 2023, the current borrowing rate was estimated by applying the Company's credit spread to the risk-free rate for a similar duration borrowing.

Pension and Postretirement Plan

Pension and Postretirement Plans	12 Months Ended
	Dec. 31, 2023
Retirement Benefits [Abstract]
Pension and Postretirement Plans	11. Pension and Postretirement Plans Savings Plans The Company sponsors several defined contribution plans covering substantially all employees. The Company's contributions to the plans are based on matching a portion of the employee contributions. Both employer and employee contributions are invested in various investment funds at the direction of the employee. Employer contributions to the defined contribution plans were $ 14.9 million in 2023, $ 13.9 million in 2022 and $ 4.0 million and $ 9.7 million in the Successor and Predecessor periods of 2021, respectively. Pension and Postretirement Plans Unrecognized actuarial net gains and losses for the Cincinnati Plans (defined below) and the Hawaii Plans (defined below) are primarily generated by differences between assumed and actual rates of return on invested assets, changes in discount rates and healthcare costs. Additionally, in Hawaii, a favorable amendment to the postretirement health and life insurance plan generated unrecognized gains in the twelve months ended December 31, 2022. Because gains and losses reflect refinements in estimates, as well as real changes in economic values, and because some gains in one period may be offset by losses in another or vice versa, we are not required to recognize these gains and losses in the periods that they occur. Instead, if the gains and losses exceed a 10% corridor defined in the accounting literature, the excess is amortized over a defined term. In conjunction with remeasuring the pension and postretirement benefit obligations as of the Merger Date, the amortization period for the Cincinnati pension plans in the Successor period was updated to amortize the excess over the average remaining life expectancy of plan participants from the average future working lifetime which was utilized in the Predecessor period. This change did not have an impact in the 2021 Successor period as gains or losses were not generated until December 31, the next measurement date. Additionally in the Successor period, the market-related value of assets is equal to the fair market value. Previously, the market-related value of assets was determined using a five-year moving market average method. Except for these changes described related to the Cincinnati pension plans, no other changes to methodology were made in the Successor period as a result of the Merger. Cincinnati Plans The Company sponsors three noncontributory defined benefit pension plans: one for eligible management employees, one for non-management employees, and one supplemental, nonqualified, unfunded plan for certain former senior executives (collectively the "Cincinnati Plans"). The management pension plan is a cash balance plan in which the pension benefit is determined by a combination of compensation-based credits and annual guaranteed interest credits. The non-management pension plan is also a cash balance plan in which the combination of service and job-classification-based credits and annual interest credits determine the pension benefit. Benefits for the supplemental plan are based on eligible pay, adjusted for age and service upon retirement. We fund both the management and non-management plans in an irrevocable trust through contributions, which are determined using the traditional unit credit cost method. We also use the traditional unit credit cost method for determining pension cost for financial reporting purposes. The Company also provides healthcare and group life insurance benefits for eligible retirees. As of October 1, 2023, healthcare benefits and other group life insurance benefits are funded through general funds of the Company. Prior to October 1, 2023, we funded healthcare benefits and other group life insurance benefits using Voluntary Employee Benefit Association ("VEBA") trusts. It is our practice to fund amounts as deemed appropriate from time to time. Contributions are subject to Internal Revenue Service ("IRS") limitations developed using the traditional unit credit cost method. The actuarial expense calculation for our postretirement health plan is based on numerous assumptions, estimates, and judgments including healthcare cost trend rates and cost sharing with retirees. Retiree healthcare benefits were phased out as of December 31, 2018 for all employees, with the exception of a small group of grandfathered employees. The postretirement health plan also includes liabilities associated with employees who have special death benefits only. Hawaii Plans The Company sponsors one noncontributory defined benefit plan for union employees, one cash balance pension plan for nonunion employees, and two postretirement health and life insurance plans for Hawaiian Telcom employees (collectively the "Hawaii Plans"). On December 31, 2023, the cash balance pension plan for nonunion employees ("HTMPP") under the Hawaii plans was merged into the management pension plan ("CBMPP") under the Cincinnati Plans. Pension plan assets and liabilities in the HTMPP were transferred to the CBMPP and remeasured at December 31, 2023. During 2022, Hawaiian Telcom's pension plans made lump sum payments of $ 7.5 million resulting in a reduction of the plan benefit obligation of $ 7.5 million and a nominal pension settlement cost. During 2021, Hawaiian Telcom’s pension plans made lump sum payments of $ 1.9 million in the Successor period and $ 7.4 million in the Predecessor period resulting in a reduction of the plan benefit obligation of $ 1.9 million and $ 7.4 million, respectively. The Company recorded a nominal pension settlement gain in the Successor period as a result of the sum of the service cost and the interest cost component of the net pension cost exceeding lump sum payments to the plan participants. The Company recorded a pension settlement cost of $ 0.4 million in the Predecessor period as a result of lump sum payments to the plan participants exceeding the sum of the service cost and the interest cost component of the net pension cost. In the thi rd quarter of 2022, the Company identified a correction related to the Hawaiian Telcom postretirement health and life insurance plans liability. The adjustment resulted in an increase to the “Postretirement and Other Benefits liability” of $ 45.9 million, an increase to “Goodwill” of $ 35.0 million and reduction to “Deferred income tax liabilities” of $ 10.9 million on the Consolidated Balance Sheets. The impact of the correction is immaterial to current and prior period fin ancial statements. The postretirement health and life insurance plan was amended in the fourth quarter of 2022 to limit the amount of Medicare Part-B premium reimbursements to the standard amount resulting in an actuarial gain of $ 4.7 million recorded to “Accumulated other comprehensive income." Components of Net Periodic Cost The following information relates to noncontributory defined benefit pension plans, postretirement healthcare plans, and life insurance benefit plans for the years ended December 31, 2023 and 2022, and the Successor and Predecessor periods in 2021 for the Cincinnati Plans and the Hawaii Plans. In accordance with ASU 2017-07, only the service cost component of net benefit cost is eligible for capitalization, which was immaterial for the years ended December 31, 2023 and 2022, and the Successor and Predecessor periods in 2021. Pension and postretirement costs (benefits) for these plans were comprised of: Pension Benefits Postretirement and Other Benefits Successor Predecessor Successor Predecessor (dollars in millions) Year Ended December 31, 2023 Year Ended December 31, 2022 September 8, 2021 to December 31, 2021 January 1, 2021 to September 7, 2021 Year Ended December 31, 2023 Year Ended December 31, 2022 September 8, 2021 to December 31, 2021 January 1, 2021 to September 7, 2021 Service cost $ — $ — $ — $ — $ 0.5 $ 0.8 $ 0.1 $ 0.3 Interest cost on projected benefit obligation 22.0 16.3 4.7 10.2 5.2 4.2 0.8 1.8 Expected return on plan assets ( 20.8 ) ( 27.5 ) ( 10.2 ) ( 19.9 ) — — — — Amortization of: Prior service benefit — — — — ( 0.7 ) ( 0.2 ) — ( 1.7 ) Actuarial (gain) loss ( 0.3 ) — — 16.0 ( 4.7 ) ( 0.6 ) — — Pension/postretirement cost (benefit) $ 0.9 $ ( 11.2 ) $ ( 5.5 ) $ 6.3 $ 0.3 $ 4.2 $ 0.9 $ 0.4 Amortization of prior service benefit and actuarial (gain) loss in the years ended December 31, 2023 and 2022 and in the Predecessor period represent reclassifications from accumulated other comprehensive income. The following are the weighted-average assumptions used in measuring the net periodic cost of the pension and postretirement benefits: Cincinnati Plans Pension Benefits Postretirement and Other Benefits Successor Predecessor Successor Predecessor Year Ended December 31, 2023 Year Ended December 31, 2022 September 8, 2021 to December 31, 2021 January 1, 2021 to September 7, 2021 Year Ended December 31, 2023 Year Ended December 31, 2022 September 8, 2021 to December 31, 2021 January 1, 2021 to September 7, 2021 Discount rate 5.40 % 2.70 % 2.60 % 2.40 % 5.40 % 2.80 % 2.60 % 2.40 % Expected long-term rate of return 6.00 % 5.80 % 6.00 % 6.00 % — — — — Cash balance interest credit rate 4.00 % 4.00 % 4.00 % 4.00 % — — — — Future compensation growth rate — — — — — — — — Hawaii Plans Pension Benefits Postretirement and Other Benefits Successor Predecessor Successor Predecessor Year Ended December 31, 2023 Year Ended December 31, 2022 September 8, 2021 to December 31, 2021 January 1, 2021 to September 7, 2021 Year Ended December 31, 2023 Year Ended December 31, 2022 September 8, 2021 to December 31, 2021 January 1, 2021 to September 7, 2021 Discount rate 5.40 % 3.90 % 2.50 % 2.30 % 5.50 % 3.70 % 2.80 % 2.60 % Expected long-term rate of return 5.50 % 5.00 % 6.00 % 6.00 % — — — — Cash balance interest credit rate 5.10 % 1.90 % 1.10 % 1.20 % — — — — Future compensation growth rate — — — — — — — — The expected long-term rate of return on plan assets, developed using the building block approach, for each of the plans is based on the mix of investments held directly by the plans and the current view of expected future returns, which is influenced by historical averages. Changes in actual asset return experience and discount rate assumptions can impact the Company’s operating results, financial position and cash flows. The Company utilized the Pri-2012/MP-2021 mortality tables published by the Society of Actuaries to measure the benefit obligations as of December 31, 2023 and 2022. Benefit Obligation and Funded Status Changes in the plans' benefit obligations and funded status are as follows: Pension Benefits Postretirement and Other Benefits (dollars in millions) Year Ended December 31, 2023 Year Ended December 31, 2022 Year Ended December 31, 2023 Year Ended December 31, 2022 Change in benefit obligation: Benefit obligation at beginning of period $ 439.5 $ 611.9 $ 102.4 $ 100.9 Service cost — — 0.5 0.8 Interest cost 22.0 16.3 5.2 4.2 Hawaii Plan Adjustment — — — 45.9 Plan Amendment 0.1 — — ( 4.7 ) Actuarial loss (gain) (a) (b) 8.8 ( 146.3 ) 1.1 ( 37.1 ) Benefits paid ( 36.7 ) ( 34.9 ) ( 9.1 ) ( 9.8 ) Settlements (c) — ( 7.5 ) — — Other — — 2.0 2.2 Benefit obligation at end of period $ 433.7 $ 439.5 $ 102.1 $ 102.4 Change in plan assets: Fair value of plan assets at beginning of period $ 390.6 $ 559.2 $ 3.2 $ 3.3 Actual return (loss) on plan assets 41.7 ( 128.3 ) — 0.1 Employer contributions 2.2 2.1 6.9 7.3 Benefits paid ( 36.7 ) ( 34.9 ) ( 7.0 ) ( 7.5 ) Settlements (c) — ( 7.5 ) — — Fair value of plan assets at end of period 397.8 390.6 3.1 3.2 Unfunded status $ ( 35.9 ) $ ( 48.9 ) $ ( 99.0 ) $ ( 99.2 ) (a) The actuarial loss recorded for the year ended December 31, 2023 for the pension plans was primarily driven by a decrease in the discount rate. The actuarial (gain) recorded during the year ended December 31, 2022 for the pension plans was primarily driven by an increase in the discount rate. (b) The actuarial loss recorded for the year ended December 31, 2023 for the postretirement plans was primarily driven by a decrease in the discount rate. The actuarial (gain) recorded for the year ended December 31, 2022 for the postretirement plans was primarily driven by an increase in the discount rate, updated census data and the result of actual versus expected benefit payments. (c) Participant elections to take lump sum payments that exceeded the settlement accounting threshold and have been categorized as settlements. The following are the weighted-average assumptions used in accounting for and measuring the projected benefit obligations: Cincinnati Plans Pension Benefits Postretirement and Other Benefits Year Ended December 31, 2023 Year Ended December 31, 2022 Year Ended December 31, 2023 Year Ended December 31, 2022 Discount rate 5.00 % 5.40 % 5.00 % 5.40 % Cash balance interest credit rate 4.00 % 4.00 % — — Future compensation growth rate — — — — Hawaii Plans Pension Benefits Postretirement and Other Benefits Year Ended December 31, 2023 Year Ended December 31, 2022 Year Ended December 31, 2023 Year Ended December 31, 2022 Discount rate 5.00 % 5.40 % 5.10 % 5.50 % Cash balance interest credit rate — 5.10 % — — Future compensation growth rate — — — — The assumed healthcare cost trend rate used to measure the postretirement health benefit obligation is shown below: Cincinnati Plans Year Ended Year Ended December 31, 2023 December 31, 2022 Healthcare cost trend 7.00 % 6.50 % Rate to which the cost trend is assumed to decline (ultimate trend rate) 4.80 % 4.80 % Year the rates reach the ultimate trend rate 2033 2032 The projected benefit obligation is recognized in the Consolidated Balance Sheets as follows: Pension Benefits Postretirement and Other Benefits December 31, December 31, (dollars in millions) 2023 2022 2023 2022 Other noncurrent assets $ 2.1 $ — $ — $ — Accrued payroll and benefits 1.5 1.5 7.9 8.1 Pension and postretirement benefit obligations 36.5 47.4 91.1 91.1 Total $ 35.9 $ 48.9 $ 99.0 $ 99.2 Amounts recognized in "Accumulated other comprehensive income" in the Consolidated Balance Sheets which have not yet been recognized in net pension costs consisted of the following: Pension Benefits Postretirement and Other Benefits December 31, December 31, (dollars in millions) 2023 2022 2023 2022 Prior service cost, net of tax of ($ 0.4 ), ($ 0.2 ) $ — $ — $ ( 1.2 ) $ ( 0.6 ) Actuarial gain (loss), net of tax of ($ 0.8 ), ($ 1.6 ), $ 8.9 , $ 10.2 5.8 ( 5.1 ) 28.6 32.8 Total $ 5.8 $ ( 5.1 ) $ 27.4 $ 32.2 Amounts recognized in "Accumulated other comprehensive income" on the Consolidated Statements of Equity (Deficit) and the Consolidated Statements of Comprehensive Income (Loss) are shown below: Pension Benefits Postretirement and Other Benefits (dollars in millions) Year Ended December 31, 2023 Year Ended December 31, 2022 Year Ended December 31, 2023 Year Ended December 31, 2022 Prior service cost recognized: Reclassification adjustments $ — $ — $ ( 0.8 ) $ 4.7 Actuarial gain (loss) recognized: Reclassification adjustments ( 0.3 ) — ( 4.7 ) ( 0.8 ) Actuarial gain (loss) arising during the period 12.0 ( 9.4 ) ( 0.8 ) 37.6 Plan Assets, Investment Policies and Strategies Cincinnati and Hawaii Plans The primary investment objective for the trusts holding the assets of the pension and postretirement plans is preservation of capital with a reasonable amount of long-term growth and income without undue exposure to risk. The investment follows a glide path approach toward liability-driven investing that shifts a higher portfolio weighting to fixed income as the plan’s funded status increases. The current target allocations for the pension plan assets are 40 % equity securities and 60 % investment grade fixed income securities with the exception of the Hawaii pension plan for union employees that is 30 % equity securities and 70 % investment grade fixed income securities as a result of its funded status. Equity securities are primarily held in the form of passively managed funds that seek to track the performance of a benchmark index. Equity securities include investments in growth and value common stocks of companies located in the United States, which represents approximately 50 % of the equity securities held by the pension plans at December 31, 2023, as well as stock of international companies located in both developed and emerging markets around the world. Fixed income securities primarily include holdings of funds, which generally invest in a variety of intermediate and long-term investment grade corporate bonds from diversified industries and U.S. Treasuries. The postretirement plan assets held by the Cincinnati plan are currently invested in a group insurance contract. The fair values of the pension plan assets at December 31, 2023 and 2022 by asset category are as follows: (dollars in millions) December 31, Quoted prices Significant Significant Mutual funds U.S. equity index funds $ 72.9 $ 72.9 $ — $ — International equity index funds 72.6 72.6 — — Fixed income bond funds 252.0 252.0 — — Fixed income short-term money market funds 0.3 0.3 — — Group insurance contract 3.1 — — — Total $ 400.9 $ 397.8 $ — $ — (dollars in millions) December 31, Quoted prices Significant Significant Mutual funds U.S. equity index funds $ 71.5 $ 71.5 $ — $ — International equity index funds 74.5 74.5 — — Fixed income bond funds 244.5 244.5 — — Fixed income short-term money market funds 0.1 0.1 — — Group insurance contract 3.2 — — — Total $ 393.8 $ 390.6 $ — $ — The fair values of Level 1 investments are based on quoted prices in active markets. The group insurance contract is valued at contract value plus accrued interest and has not been included in the fair value hierarchy but is included in the totals above. Contributions to our qualified pension plans were $ 0.2 million in 2023 and there were no contributions to our qualified pension plans in 2022 and the Successor period in 2021. Contributions to our qualified pension plans were $ 0.9 million in the Predecessor period in 2021. Contributions to our non-qualified pension plans were $ 2.0 million in 2023, $ 2.2 million in 2022, $ 0.8 million in the Successor period in 2021 and $ 1.8 million in the Predecessor period in 2021. Based on current assumptions, contributions are expected to be approximately $ 1 million to the qualified plans and approximately $ 2 million to the non-qualified plans in 2024. Management expects to make cash payments of approximately $ 7 million related to its postretirement health plans in 2024. Estimated Future Benefit Payments The following benefit payments, which reflect expected future service, as appropriate, are expected to be paid over the next ten years: (dollars in millions) Pension Postretirement Medicare 2024 $ 48.2 $ 8.0 $ ( 0.1 ) 2025 46.3 7.9 ( 0.1 ) 2026 42.7 7.7 ( 0.1 ) 2027 40.3 7.6 ( 0.1 ) 2028 38.1 7.5 ( 0.1 ) Years 2029 - 2033 159.7 35.4 ( 0.2 )

Equity

Equity	12 Months Ended
	Dec. 31, 2023
Shareowners Deficit [Abstract]
Equity	12. Equity Pursuant to the Merger Agreement, Parent acquired all of the equity interests in the Company. In connection with the consummation of the Merger Agreement, each of our issued and outstanding Common Shares was converted to $ 15.50 in cash per Common Share and paid to the shareholders. The Company redeemed each of our issued and outstanding Depositary Shares simultaneously with the redemption of the 6 ¾% Preferred Shares at a redemption price of $ 50 per Depositary Share (equivalent to $ 1,000 per 6 ¾% Preferred Share). Effective October 18, 2021, Parent amended and restated the Articles of Incorporation of Cincinnati Bell to reduce the number of authorized shares from 96,000,000 Common Shares to 100 Common Shares, each with $ 0.01 par value. As of December 31, 2023 and 2022, Parent is the sole shareholder of the Company’s 100 Common Shares. Accumulated Other Comprehensive Income (Loss) Shareowners’ equity includes accumulated other comprehensive income (loss) that is comprised of pension and postretirement unrecognized prior service benefit (cost) and unrecognized actuarial (gain) loss, and foreign currency translation gain (loss). The changes in accumulated other comprehensive income (loss) by component were as follows: (dollars in millions) Unrecognized Foreign Total Balance as of December 31, 2021 $ 2.6 $ ( 1.4 ) $ 1.2 Remeasurement of benefit obligations 25.1 — 25.1 Reclassifications, net ( 0.6 ) (a) — ( 0.6 ) Foreign currency loss — ( 6.2 ) ( 6.2 ) Balance as of December 31, 2022 $ 27.1 $ ( 7.6 ) $ 19.5 Remeasurement of benefit obligations 10.5 — 10.5 Reclassifications, net ( 4.4 ) (a) — ( 4.4 ) Foreign currency gain — 2.6 2.6 Balance as of December 31, 2023 $ 33.2 $ ( 5.0 ) $ 28.2 (a) These reclassifications are included in the other components of net periodic pension and postretirement benefit plans expense and represent amortization of prior service benefit and actuarial gain, net of tax. The other components of net periodic pension and postretirement benefit plans expense are recorded in "Other components of pension and postretirement benefit plans expense (benefit)" on the Consolidated Statements of Operations. See Note 11 for further disclosures.

Income Taxes

Income Taxes	12 Months Ended
	Dec. 31, 2023
Income Tax Disclosure [Abstract]
Income Taxes	13. Income Taxes Income tax expense (benefit) for continuing operations consisted of the following: Successor Predecessor (dollars in millions) Year Ended Year Ended September 8, 2021 to December 31, 2021 January 1, 2021 to September 7, 2021 Current: Federal $ — $ — $ — $ — State and local 0.5 0.6 ( 0.4 ) 0.7 Foreign 6.0 6.4 1.6 3.1 Total current 6.5 7.0 1.2 3.8 Deferred: Federal ( 52.8 ) ( 37.9 ) ( 9.2 ) ( 16.1 ) State and local ( 5.2 ) 2.7 7.4 ( 3.8 ) Foreign ( 1.7 ) ( 3.1 ) ( 0.7 ) ( 0.8 ) Total deferred ( 59.7 ) ( 38.3 ) ( 2.5 ) ( 20.7 ) Valuation allowance 18.9 ( 3.8 ) ( 6.0 ) — Total $ ( 34.3 ) $ ( 35.1 ) $ ( 7.3 ) $ ( 16.9 ) The following is a reconciliation of the statutory federal income tax rate with the effective tax rate for each period: Successor Predecessor Year Ended December 31, 2023 Year Ended December 31, 2022 September 8, 2021 to December 31, 2021 January 1, 2021 to September 7, 2021 U.S. federal statutory rate 21.0 % 21.0 % 21.0 % 21.0 % State and local income taxes, net of federal income tax 3.2 3.1 2.1 2.5 Transaction costs — — ( 0.4 ) ( 4.1 ) Non-Deductible meals and entertainment ( 0.3 ) ( 0.3 ) ( 0.2 ) ( 0.3 ) State net operating loss adjustments ( 1.4 ) ( 4.4 ) ( 18.4 ) — Change in valuation allowance, net of federal income tax ( 8.3 ) 2.3 17.5 — Change in uncertain tax positions — — 0.1 — Research and development credits 1.4 — — — Other differences, net ( 0.5 ) ( 0.5 ) ( 0.4 ) ( 1.9 ) Effective tax rate 15.1 % 21.2 % 21.3 % 17.2 % The income tax (benefit) provision was charged to continuing operations or accumulated other comprehensive income as follows: Successor Predecessor (dollars in millions) Year Ended December 31, 2023 Year Ended December 31, 2022 September 8, 2021 to December 31, 2021 January 1, 2021 to September 7, 2021 Income tax (benefit) provision related to: Continuing operations $ ( 34.3 ) $ ( 35.1 ) $ ( 7.3 ) $ ( 16.9 ) Accumulated other comprehensive (loss) income ( 0.7 ) 7.6 0.8 10.8 The components of our deferred tax assets and liabilities were as follows: December 31, (dollars in millions) 2023 2022 Deferred tax assets: Net operating loss carryforwards $ 209.0 $ 227.6 Finance and operating lease obligations 19.8 21.6 Pension and postretirement benefits 32.8 35.8 Employee benefits 3.9 4.7 Interest limitation 48.8 16.7 State tax credit 7.4 8.0 Other 30.8 23.4 Total deferred tax assets 352.5 337.8 Valuation allowance ( 32.8 ) ( 15.7 ) Total deferred tax assets, net of valuation allowance $ 319.7 $ 322.1 Deferred tax liabilities: Property, plant and equipment and intangibles $ ( 361.8 ) $ ( 410.5 ) Other ( 9.3 ) ( 7.6 ) Total deferred tax liabilities ( 371.1 ) ( 418.1 ) Net deferred tax liabilities $ ( 51.4 ) $ ( 96.0 ) As of December 31, 2023, the Company had $ 897.1 million of federal net operating loss carryforwards with a deferred tax asset value of $ 188.4 million and $ 20.6 million in deferred tax assets related to state and local net operating loss carryforwards. On its 2022 income tax return filed in 2023, the Company utilized the $ 55.8 million tranche of Federal operating loss carryforwards that would have otherwise expired. The next remaining material tranche of Federal net operating loss carryforwards will expire in 2031. U.S. tax laws limit the annual utilization of net operating loss carryforwards of acquired entities, and the Company does not expect to fully utilize the net operating loss carryforwards. The Company assessed all available positive and negative evidence to determine whether it expects that sufficient future taxable income will be generated to allow it to realize its existing deferred tax assets. There are no longer sufficient sources of future taxable income (e.g. reversing deferred tax liabilities) for management to conclude that it is more likely than not that the Company will fully utilize available federal net operating loss carryforwards prior to their expiration and a partial valuation allowance was added in 2023. As of December 31, 2023 and 2022, the Company had valuation allowances of $ 32.8 million and $ 15.7 million, respectively, recorded against other deferred tax assets consisting primarily of federal, foreign, state and local net operating loss carryforwards and state credits. Management has concluded that it is more likely than not that it will realize all other deferred tax assets. The total amount of unrecognized tax benefits that, if recognized, would impact the effective tax rate is $ 19.3 million at December 31, 2023 and $ 19.0 million at December 31, 2022. Accrued interest and penalties on income tax uncertainties were immaterial as of December 31, 2023 and 2022. A reconciliation of the unrecognized tax benefits is as follows: Successor Predecessor (dollars in millions) Year Ended December 31, 2023 Year Ended December 31, 2022 September 8, 2021 to December 31, 2021 January 1, 2021 to September 7, 2021 Balance, beginning of year $ 19.3 $ 19.3 $ 19.2 $ 19.2 Change in tax positions for the current year 0.3 — 0.1 — Balance, end of year $ 19.6 $ 19.3 $ 19.3 $ 19.2 The Company and its subsidiaries file income tax returns in the U.S. federal jurisdiction and various foreign, state and local jurisdictions. With a few exceptions, the Company is no longer subject to U.S. federal, state or local examinations for years before 2019. The Company has not recorded deferred income taxes on the undistributed earnings of its foreign subsidiaries because of management’s intent to indefinitely reinvest such earnings. Determination of the amount of any unrecognized deferred income tax liability on temporary differences arising from tax and financial reporting basis differences has not been practicable.

Stock-Based and Deferred Compen

Stock-Based and Deferred Compensation Plans	12 Months Ended
	Dec. 31, 2023
Share-Based Payment Arrangement [Abstract]
Stock-Based and Deferred Compensation Plans	14. Stock-Based and Deferred Compensation Plans Prior to the Merger Date, the Company granted stock options, stock appreciation rights, performance-based awards, restricted stock units, and time-based restricted shares to officers and key employees under the 2017 Long-Term Incentive Plan and stock options, restricted shares, and restricted stock units to directors under the 2017 Stock Plan for Non-Employee Directors. On July 2, 2018, the Company completed its acquisition of Hawaiian Telcom. In conjunction with the acquisition, the Company assumed responsibility for the eventual payout of certain stock-based compensation awards that were previously granted to Hawaiian Telcom employees under the Hawaiian Telcom 2010 Equity Incentive Plan. These awards were originally granted by Hawaiian Telcom in the first quarter of 2017 and in the first quarter of 2018, before the merger with Cincinnati Bell was completed. Subsequent to the Merger Date, awards will no longer be granted under the 2017 Long-Term Incentive Plan or the 2017 Stock Plan for Non-Employee Directors. Stock Options and Stock Appreciation Rights Generally, the awards of stock options and stock appreciation rights fully vested three years from grant date and expired ten years from grant date. Beginning in 2012, some of the stock options vested over a three year period based on the achievement of certain performance objectives. The Company generally issued new shares when options to purchase common shares or stock appreciation rights were exercised. The following table summarizes stock options and stock appreciation rights activity: Successor Predecessor Year Ended December 31, 2023 Year Ended December 31, 2022 September 8, 2021 to December 31, 2021 January 1, 2021 to September 7, 2021 (in thousands, except per share amounts) Shares Weighted- Shares Weighted- Shares Weighted- Shares Weighted- Outstanding at beginning of period — $ — — $ — — $ — 143 $ 18.37 Exercised — — — — — — — — Forfeited — — — — — — — — Awards cancelled pursuant to Merger Agreement — — — — — — ( 143 ) 18.37 Outstanding and exercisable at end of period — $ — — $ — — $ — — $ — (dollars in millions) Compensation expense for the period $ — $ — $ — $ — Tax benefit related to compensation expense $ — $ — $ — $ — Intrinsic value of awards exercised $ — $ — $ — $ — Cash received from awards exercised $ — $ — $ — $ — Grant date fair value of awards vested $ — $ — $ — $ — Performance-Based Restricted Awards Awards granted generally vested over three years and upon the achievement of certain performance-based objectives. Performance-based awards were expensed based on their grant date fair value if it was probable that the performance conditions would be achieved. The following table summarizes our outstanding performance-based restricted award activity: Successor Predecessor Year Ended December 31, 2023 Year Ended December 31, 2022 September 8, 2021 to December 31, 2021 January 1, 2021 to September 7, 2021 (in thousands, except per share amounts) Shares Weighted- Shares Weighted- Shares Weighted- Shares Weighted- Non-vested at beginning of period — $ — — $ — — $ — 1,037 $ 10.87 Granted* — — — — — — — — Vested — — — — — — ( 1,037 ) 10.87 Forfeited — — — — — — — — Non-vested at end of period — $ — — $ — — $ — — $ — (dollars in millions) Compensation expense for the period $ — $ — $ — $ 6.2 Tax benefit related to compensation expense $ — $ — $ — $ ( 1.5 ) Grant date fair value of awards vested $ — $ — $ — $ 11.3 * Assumes the maximum number of awards that can be earned if the performance conditions are achieved. In connection with the Merger, $ 5.0 million of expense related to performance-based restricted awards was accelerated upon the Closing Date and recorded in the Predecessor period in 2021. Time-Based Restricted Awards Awards granted to Cincinnati Bell employees in 2019 vested as of the Merger Date and were paid to employees in cash. Awards granted to directors in 2020 vested as of the Merger Date and were paid to directors in cash. As part of the terms of the acquisition of Hawaiian Telcom, certain stock-based compensation awards granted by Hawaiian Telcom before the merger date were converted to time-based restricted stock units. The Company assumed responsibility for the eventual payout of these time-based restricted stock units as part of the acquisition. These awards were originally granted by Hawaiian Telcom in the first quarter of 2017 and 2018, and vested in one-fourth increments over a period of four years . One-fourth of the awards granted in the first quarter of 2017 vested and were distributed by Hawaiian Telcom prior to July 2, 2018. All remaining awards that vested after July 2, 2018, including awards that were accelerated and vested as of the Merger Date, were distributed by Cincinnati Bell Inc. The following table summarizes our time-based restricted award activity: Successor Predecessor Year Ended December 31, 2023 Year Ended December 31, 2022 September 8, 2021 to December 31, 2021 January 1, 2021 to September 7, 2021 (in thousands, except per share amounts) Shares Weighted- Shares Weighted- Shares Weighted- Shares Weighted- Non-vested at beginning of period — $ — — $ — — $ — 792 $ 11.42 Granted — — — — — — — — Vested — — — — — — ( 792 ) 11.42 Forfeited — — — — — — — — Non-vested at end of period — $ — — $ — — $ — — $ — (dollars in millions) Compensation expense for the period $ — $ — $ — $ 6.9 Tax benefit related to compensation expense $ — $ — $ — $ ( 1.7 ) Grant date fair value of awards vested $ — $ — $ — $ 9.0 In connection with the Merger, $ 4.3 million of expense related to time-based restricted awards was accelerated upon the Closing Date and recorded in the Predecessor period in 2021. Cash-Settled Awards For the year ended December 31, 2021, Parent granted officers and key employees of the Company cash-settled awards that vest ratably over a 4 -year period beginning with the first anniversary of the grant date with the final 20 % vesting upon the occurrence of a liquidity event, defined as a change of control or qualified public offering. In the absence of a liquidity event, the awards will expire in eight years . The ultimate payment of the awards upon the occurrence of a liquidity event is based on the i) number of vested awards and ii) an amount determined from the excess of the proceeds received from the liquidity event over the invested capital, adjusted for internal rates of return. No compensation expense was recorded in the years ended December 31, 2023 and 2022 and the Predecessor and Successor periods in 2021. For the year ended December 31, 2020, the Company granted officers and key employees cash-settled awards of $ 10.5 million in place of performance-based restricted awards and time-based restricted awards. Per the terms of the award, one-fourth of these cash-settled awards accelerated and vested as of the Merger Date. Subsequent to the Merger Date, one-fourth of these cash-settled awards vested at the end of six months , and the remaining awards vest at the end of 18 months. Employees generally must be actively employed on the vesting date in order to receive the award payout. The amount recorded on the Consolidated Balance Sheets as of December 31, 2022 related to these awards was $ 4.6 million, and was recorded to “Other noncurrent liabilities.” The remaining awards vested and were paid by the Company in the first quarter of 2023. Expense incurred for cash payment awards was $ 0.3 million and $ 3.3 million for the years ended December 31, 2023 and 2022, respectively, and $ 1.0 million and $ 2.4 million for the Successor and Predecessor periods in 2021, respectively.

Restructuring and Severance

Restructuring and Severance	12 Months Ended
	Dec. 31, 2023
Restructuring and Related Activities [Abstract]
Restructuring and Severance	15. Restructuring and Severance Liabilities have been established for employee separations. A summary of activity in the restructuring and severance liability is shown below: Successor (dollars in millions) Employee Separation Balance as of September 8, 2021 $ 0.1 Charges 0.6 Utilizations ( 0.5 ) Balance as of December 31, 2021 0.2 Charges 2.0 Utilizations ( 2.2 ) Balance as of December 31, 2022 — Charges 13.8 Utilizations ( 3.3 ) Balance as of December 31, 2023 $ 10.5 Predecessor (dollars in millions) Employee Separation Balance as of December 31, 2020 $ 4.5 Charges 1.2 Utilizations ( 5.6 ) Balance as of September 7, 2021 $ 0.1 Restructuring and severance charges recorded in 2023 in the Network segment and for certain Corporate employees are related to a severance program as the Company continues to reduce costs and identify efficiencies that can be achieved by further integrating operations between Cincinnati and Hawaii. In the fourth quarter of 2023, severance charges of $ 7.3 million were recorded related to a voluntary severance program ("VSP") and severance charges of $ 3.5 million were recorded related to involuntary severance charges. Restructuring and severance charges recorded in the IT Services and Hardware segment in 2023, 2022 and the Successor and Predecessor periods in 2021 are associated with initiatives to reduce and contain costs. Restructuring and severance charge reversals recorded in the Network segment in the Predecessor period of 2021 are due to employees that transitioned to new positions in the Company and were previously included in the VSP offered in 2020. A summary of restructuring activity by business segment is presented below: Successor (dollars in millions) Network IT Services and Hardware Corporate Total Balance as of September 8, 2021 $ 0.1 $ — $ — $ 0.1 Charges — 0.6 — 0.6 Utilizations — ( 0.5 ) — ( 0.5 ) Balance as of December 31, 2021 0.1 0.1 — 0.2 Charges — 2.0 — 2.0 Utilizations ( 0.1 ) ( 2.1 ) — ( 2.2 ) Balance as of December 31, 2022 — — — — Charges 10.3 3.0 0.5 13.8 Utilizations ( 0.6 ) ( 2.7 ) — ( 3.3 ) Balance as of December 31, 2023 $ 9.7 $ 0.3 $ 0.5 $ 10.5 Predecessor (dollars in millions) Network IT Services and Hardware Corporate Total Balance as of December 31, 2020 $ 4.4 $ — $ 0.1 $ 4.5 Charges ( 0.5 ) 1.7 — 1.2 Utilizations ( 3.8 ) ( 1.7 ) ( 0.1 ) ( 5.6 ) Balance as of September 7, 2021 $ 0.1 $ — $ — $ 0.1 At December 31, 2023, $ 10.5 million of the restructuring liabilities were included in “Other current liabilities." There were no restructuring liabilities as of December 31, 2022.

Business Segment Information

Business Segment Information	12 Months Ended
	Dec. 31, 2023
Segment Reporting [Abstract]
Business Segment Information	Business Segment Information For the years ended December 31, 2023 and 2022 and the Successor and Predecessor periods in 2021, we operated two business segments: Network and IT Services and Hardware. In July 2018, the Company acquired Hawaiian Telcom. Based on the nature of the products and services offered, financial results are presented in either the Network segment or the IT Services and Hardware segment. The Network segment provides products and services that can be categorized as Fioptics, previously referred to as "Consumer/SMB Fiber" in Hawaii and collectively with Fioptics in Cincinnati, Enterprise Fiber or Legacy. Cincinnati Bell Telephone Company LLC ("CBT"), a subsidiary of the Company, is the incumbent local exchange carrier ("ILEC") for a geography that covers a radius of approximately 25 miles around Cincinnati, Ohio, and includes parts of northern Kentucky and southeastern Indiana. Voice and data services in the Enterprise Fiber and Legacy categories that are delivered beyond the Company's ILEC territory, particularly in Dayton and Mason, Ohio, are provided through the operations of Cincinnati Bell Extended Territories LLC ("CBET"), a subsidiary of CBT. On July 2, 2018, the Company acquired Hawaiian Telcom. Hawaiian Telcom is the ILEC for the State of Hawaii and the largest full service provider of communications services and products in the state. On May 2, 2022, the Company acquired Agile. Agile delivers customers, primarily located in Ohio and Pennsylvania, with middle mile, last mile and campus connectivity services through hybrid fiber wireless networks that are designed, built and managed by Agile. On April 17, 2023, the Company acquired OTT. OTT provides network security, data connectivity, and unified communications solutions to commercial and enterprise customers across multiple sectors throughout Ohio and Michigan. Capital expenditures in the Network segment are incurred to expand our Fioptics product suite, upgrade and increase capacity for our internet and data networks, and to maintain our wireline network. The IT Services and Hardware segment provides end-to-end solutions from consulting to implementation to ongoing optimization to customers in the U.S., Canada and the U.K. These solutions include Cloud, Communications and Consulting services along with the sale and maintenance of major branded hardware reported as Infrastructure Solutions. In July 2018, the Company completed the acquisition of Hawaiian Telcom, and products such as UCaaS, hardware and enterprise long distance delivered by Hawaiian Telcom are included in the IT Services and Hardware segment. Total assets for the Company increased $ 316.4 million as of December 31, 2023 compared to December 31, 2022. Network assets increased $ 319.1 million primarily due to increased property, plant and equipment related to extending the Company's fiber network, including the acquisitions of Bridgewired and Lawrenceburg fiber assets, partially offset by amortization of finite-lived intangible assets. IT Services and Hardware assets increased $ 276.5 million primarily due to an increase in receivables partially offset by depreciation and amortization of property, plant and equipment and finite-lived intangible assets. The increase in receivables is due to the CBTS Receivables Facility which provides for the continuous sale of trade receivables to CBFC and CBTSF, reported under the IT Services and Hardware segment, rather than to CBF, reported under Corporate, under the former Receivables Facility (Note 7). Corporate assets decreased $ 279.2 million due to the decrease in receivables as a result of receivables now sold under the CBTS Receivables Facility to CBFC and CBTSF. Deferred tax assets and liabilities on the Consolidated Balance Sheets totaled $ 2.8 million and $ 54.2 million as of December 31, 2 023, respectively, compared to deferred tax assets and liabilities of $ 2.2 million and $ 98.2 million as of December 31, 2022, respectively. The decrease in net deferred tax liabilities is due primarily to higher depreciation and amortization expense reported for GAAP versus tax. This was offset, in part, by the utilization of existing federal and state net operating losses. Our business segment information is as follows: Successor Predecessor Year Ended Year Ended September 8, 2021 to January 1, 2021 to (dollars in millions) December 31, 2023 December 31, 2022 December 31, 2021 September 7, 2021 Revenue Network $ 1,002.9 $ 994.3 $ 303.8 $ 664.2 IT Services and Hardware 838.7 827.9 259.3 492.4 Intersegment ( 24.3 ) ( 26.2 ) ( 8.7 ) ( 17.9 ) Total revenue $ 1,817.3 $ 1,796.0 $ 554.4 $ 1,138.7 Intersegment revenue Network $ 16.4 $ 19.3 $ 6.5 $ 13.1 IT Services and Hardware 7.9 6.9 2.2 4.8 Total intersegment revenue $ 24.3 $ 26.2 $ 8.7 $ 17.9 Operating (loss) income Network $ ( 52.7 ) $ ( 56.2 ) $ ( 6.3 ) $ 78.3 IT Services and Hardware ( 7.1 ) ( 8.4 ) 4.0 25.2 Corporate ( 22.9 ) ( 32.7 ) ( 6.8 ) ( 75.8 ) Total operating (loss) income $ ( 82.7 ) $ ( 97.3 ) $ ( 9.1 ) $ 27.7 Expenditures for long-lived assets* Network $ 627.5 $ 524.9 $ 114.8 $ 199.8 IT Services and Hardware 25.5 30.1 13.9 15.9 Corporate 0.2 0.1 1,620.7 — Total expenditures for long-lived assets $ 653.2 $ 555.1 $ 1,749.4 $ 215.7 Depreciation and amortization Network $ 355.3 $ 393.3 $ 113.0 $ 166.9 IT Services and Hardware 94.0 103.5 31.4 27.9 Corporate 0.3 0.3 0.2 0.1 Total depreciation and amortization $ 449.6 $ 497.1 $ 144.6 $ 194.9 * Includes cost of acquisitions in the years ended December 31, 2023 and 2022 and in the Predecessor and Successor periods in 2021 and the purchase of perpetual licenses in the year ended December 31, 2022. As of December 31, (dollars in millions) 2023 2022 Assets Network $ 3,537.6 $ 3,218.5 IT Services and Hardware 1,088.7 812.2 Corporate and eliminations 125.7 404.9 Total assets $ 4,752.0 $ 4,435.6

Supplemental Cash Flow Informat

Supplemental Cash Flow Information	12 Months Ended
	Dec. 31, 2023
Supplemental Cash Flow Information [Abstract]
Supplemental Cash Flow Information	Supplemental Cash Flow Information Successor Predecessor Year Ended Year Ended September 8, 2021 to January 1, 2021 to (dollars in millions) December 31, 2023 December 31, 2022 December 31, 2021 September 7, 2021 Capitalized interest expense $ 8.2 $ 3.1 $ 0.6 $ 1.3 Cash paid for: Interest 157.0 84.6 45.7 89.9 Income taxes, net of refunds 6.6 6.4 3.3 3.8 Noncash investing and financing activities: Acquisition of property by assuming debt and other financing arrangements 7.4 10.5 5.8 3.8 Acquisition of property on account 93.7 79.1 51.2 54.9

Subsequent Events

Subsequent Events	12 Months Ended
	Dec. 31, 2023
Subsequent Events [Abstract]
Subsequent Events	18. Subsequent Events On February 2, 2024, the Company entered into a definitive purchase agreement (the "Purchase Agreement") with TowerBrook Capital Partners ("TowerBrook") in which TowerBrook will acquire the CBTS and OnX businesses (the "Disposal Group") from the Company for a purchase price of $ 670.0 million. The Purchase Agreement is subject to customary closing conditions and is expected to close in the second half of 2024, although there can be no assurance that the Purchase Agreement will close by that date. Management evaluated the criteria to report a disposal group as held for sale and concluded that all of the criteria were met as of February 2, 2024. As a result, the Company will report the assets and the liabilities that are included in the Disposal Group as held for sale and the operations as discontinued in the first quarter of 2024. The revenue and operating income contributed by Hawaii operations and certain Communications customers, as well as the associated assets and liabilities, that are reported in the IT Services and Hardware Segment for the twelve months ended December 31, 2023 and 2022 and the Successor and Predecessor periods in 2021 will be retained by the continuing operation and reported in the Network segment.

Schedule II - Valuation and Qua

Schedule II - Valuation and Qualifying Accounts	12 Months Ended
	Dec. 31, 2023
Schedule Of Valuation And Qualifying Accounts Disclosure [Abstract]
Valuation and Qualifying Accounts	VALUATION AND QUA LIFYING ACCOUNTS Allowance for Doubtful Accounts Additions (dollars in millions) Beginning Charge (Benefit) (To) From Deductions End of Successor Year 2023 $ 12.0 $ 9.1 $ — $ 3.4 $ 17.7 Year 2022 $ 3.6 $ 8.4 $ — $ — $ 12.0 September 8, 2021 to December 31, 2021 (remeasured upon Merger) $ — $ 3.6 $ — $ — $ 3.6 Predecessor January 1, 2021 to September 7, 2021 $ 23.0 $ 2.1 $ — $ 8.7 $ 16.4 Deferred Tax Valuation Allowance Additions (dollars in millions) Beginning Charge (Benefit) (To) From Deductions End of Successor Year 2023 $ 15.7 $ 18.9 $ ( 1.8 ) $ — $ 32.8 Year 2022 $ 18.4 $ ( 3.8 ) $ 1.1 $ — $ 15.7 September 8, 2021 to December 31, 2021 $ 24.4 $ ( 6.0 ) $ — $ — $ 18.4 Predecessor January 1, 2021 to September 7, 2021 $ 28.4 $ — $ ( 4.0 ) $ — $ 24.4

Description of Business and A_2

Description of Business and Accounting Policies (Policies)	12 Months Ended
	Dec. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Basis of Presentation	Basis of Presentation — The consolidated financial statements of the Company have been prepared pursuant to the rules and regulations of the SEC and, in the opinion of management, include all adjustments necessary for a fair presentation of the results of operations, comprehensive income, financial position and cash flows for each period presented.
Basis of Consolidation	Basis of Consolidation — The consolidated financial statements include the consolidated accounts of Cincinnati Bell Inc. and its majority-owned subsidiaries over which it exercises control. Intercompany accounts and transactions have been eliminated in the consolidated financial statements.
Use of Estimates	Use of Estimates — The preparation of financial statements in conformity with generally accepted accounting principles ("GAAP") requires management to make estimates and assumptions that affect the amounts reported. Actual results could differ from those estimates. Significant items subject to such estimates and judgments include: the carrying value of property, plant and equipment; the valuation of credit losses for receivables and deferred income taxes; reserves recorded for income tax exposures; assets and liabilities related to employee benefits; the valuation of deferred costs under Accounting Standards Codification ("ASC") 606, “Revenue Recognition”; purchase price allocation for acquired businesses; and the valuation of intangible assets and goodwill. In the normal course of business, the Company is also subject to various regulatory and tax proceedings, lawsuits, claims and other matters. The Company believes adequate provision has been made for all such asserted and unasserted claims in accordance with GAAP. Such matters are subject to many uncertainties and outcomes that are not predictable with assurance. We periodically review our estimates in light of changes in circumstances, facts and experience. The effects of material revisions in estimates are reflected in our financial statements prospectively from the date of the change in estimate.
Business Combinations	Business Combinations — In accounting for business combinations, we apply the accounting requirements of Accounting Standards Codification 805 (“ASC 805”), “Business Combinations,” which requires the recording of net assets of acquired businesses at fair value. In developing fair value estimates for acquired assets and assumed liabilities, management analyzes a variety of factors including market data, estimated future cash flows of the acquired operations, industry growth rates, current replacement cost for fixed assets, and market rate assumptions for contractual obligations. Such a valuation requires management to make significant estimates and assumptions, particularly with respect to the intangible assets. In addition, any contingent consideration is presented at fair value at the date of acquisition, and transaction costs are expensed as incurred. The Company reports in its consolidated financial statements provisional amounts for the items for which accounting is incomplete. Goodwill is adjusted for any changes to provisional amounts made within the measurement period. See Note 4 for disclosures related to mergers and acquisitions.
Variable Interest Entity	Variable Interest Entity — The Company holds an interest in a limited liability company, Digital Access Ohio LLC (“DAO”), that is considered a variable interest entity ("VIE") in accordance with the guidance of ASC 810 “Consolidation.” DAO is considered a VIE as it has insufficient equity capital to finance its activities without additional financial support. The Company is the primary beneficiary of DAO as it has the power over the activities that most significantly impact the economic performance of DAO and has the obligation to absorb expected losses and the right to receive expected benefits that could be significant to DAO. As a result, the Company consolidated DAO, and all significant intercompany accounts have been eliminated. For the years ended December 31, 2023 and 2022, results of operations of DAO were nominal. Funding of DAO is provided in the form of cash contributions, debt issuance and grants that include a free standing warrant that allows the holder of the warrant at its option to convert the warrant into a class A-2 share of DAO at any time during the period commencing on the 2 nd anniversary of the funding agreement and ending on the 10th anniversary of the funding agreement date. The Company has recorded the fair value associated with the warrant to "Other noncurrent liabilities" on the Consolidated Balance Sheets. The Company will continue to assess whether it has a controlling financial interest and whether it is the primary beneficiary at each reportin g period.
Cash, Cash Equivalents and Restricted Cash	Cash, Cash Equivalents and Restricted Cash — Cash consists of funds held in bank accounts. Cash equivalents consist of short-term, highly liquid investments with original maturities of three months or less. Restricted cash as of December 31, 2023 consists of funds held by DAO. Restricted cash as of December 31, 2022 consists of funds held in an escrow account related to a cost method investment and funds held by DAO. Restricted cash as of December 31, 2021 consists of funds held in an escrow account related to a cost method investment. Restricted cash is included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts shown on the Consolidated Statements of Cash Flows. A reconciliation of cash, cash equivalents and restricted cash to the Consolidated Balance Sheets follows: (dollars in millions) December 31, 2023 December 31, 2022 December 31, 2021 Cash and cash equivalents $ 9.1 $ 9.4 $ 5.6 Restricted cash included in Other noncurrent assets 3.4 3.5 0.5 Cash, cash equivalents and restricted cash per Consolidated Statements of Cash Flows $ 12.5 $ 12.9 $ 6.1
Receivables	Receiva bles — Receivables consist principally of trade receivables from customers and are generally unsecured and due within 21 - 90 days. The Company has receivables with one customer, Verizon Communications Inc., which make up 23 % and 21 % of the outstanding accounts receivable balance at December 31, 2023 and 2022, respectively. Unbilled receivables arise from services rendered but not yet billed. As of December 31, 2023 and 2022, unbilled receivables totaled $ 78.8 million and $ 66.9 million, respectively. Expected credit losses related to trade receivables are recorded as an allowance for credit losses in the Consolidated Balance Sheets. The Company establishes the allowa nces for uncollectible accounts using percentages of aged accounts receivable balances to reflect the historical average of credit losses as well as specific provisions for certain identifiable, potentially uncollectible balances. When internal collection efforts on accounts have been exhausted, the accounts are written off and the associated allowance for uncollectible accounts is reduced. As of the Merger Date, the Company measured their receivables at fair value in accordance with ASC 805.
Factoring Arrangements	Factoring Arrangements — In the second quarter of 2018, the Company executed an amendment of its Receivables Facility that includes an option for Cincinnati Bell Funding LLC (“CBF”) to sell certain receivables, on a non-recourse basis, directly to PNC Bank. The terms of the factoring arrangement provides for the factoring of certain receivables, which are purchased at the face amount of the receivable discounted at the annual rate of LIBOR plus a bank determined spread on the purchase date. In the second quarter of 2022, the Company executed an amendment of its Receivables Facility, which replaced LIBOR with SOFR, a rate equal to the secured overnight financing rate as administered by the Federal Reserve Bank of New York. In the first quarter of 2023, the Company executed certain amendments (the "Amendments") to the Receivables Facility to, among other things, separate the Receivables Facility into two separate facilities, with (A) the existing Receivables Facility (the “Network Receivables Facility”), as amended by the Amendments, covering receivables originated by certain U.S. subsidiaries of the Company including Cincinnati Bell Telephone Company LLC, Hawaiian Telcom Communications, Inc. and certain of their respective subsidiaries and (B) a new facility (the “CBTS Receivables Facility”) covering receivables originated by certain U.S. and Canadian subsidiaries in the Company's IT Services and Hardware segment including CBTS Technology Solutions LLC and OnX Enterprise Solutions Ltd. The Amendments also moved the receivables monetization arrangements from the Network Receivables Facility to the CBTS Receivables Facility. Sales of accounts receivable are reflected as a reduction of "Receivables, less allowances" in the Consolidated Balance Sheets as they meet the applicable criteria in ASC 860, "Transfers and Servicing." The fees recorded in relation to such sales of accounts receivable were $ 0.9 million and $ 1.8 million in 2023 and 2022, respectively, and are included in "Selling, general, and administrative" in the Consolidated Statements of Operations. As of December 31, 2023 and 2022, the outstanding balance of receivables sold under the terms of the factoring agreement was $ 3.5 million and $ 56.8 million, respectively. See Note 7 for further information related to the Network Receivables Facility and the CBTS Receivables Facility.
Inventory, Materials and Supplies	Inventory, Materials and Supplies — Inventory, materials and supplies consists of network components, various telephony and IT equipment to be sold to customers, maintenance inventories, and other materials and supplies, which are carried at the lower of average cost or market.
Property, Plant and Equipment	Property, Plant and Equipment — Property, plant and equipment is stated at original cost and presented net of accumulated depreciation and impairment losses. Property, plant and equipment owned by the Company on the Merger Date was stated at fair value in accordance with ASC 805, “Business Combinations.” Maintenance and repairs are charged to expense as incurred while improvements, which extend an asset's useful life or increase its functionality, are capitalized and depreciated over the asset's remaining life. The majority of the Network segment’s network property, plant and equipment used to generate its voice and data revenue is depreciated using the group method, which develops a depreciation rate annually based on the average useful life of a specific group of assets rather than for each individual asset as would be utilized under the unit method. Provision for depreciation of other property, plant and equipment, except for leasehold improvements, is based on the straight-line method over the estimated economic useful life. Depreciation of leasehold improvements is based on a straight-line method over the lesser of the economic useful life of the asset or the term of the lease, including optional renewal periods if renewal of the lease is reasonably assured. Additions and improvements, including interest and certain labor costs incurred during the construction period, are capitalized. The Company records the fair value of a legal liability for an asset retirement obligation in the period it is incurred. The estimated removal cost is initially capitalized and depreciated over the remaining life of the underlying asset. The associated liability is accreted to its present value each period. Once the obligation is ultimately settled, any difference between the final cost and the recorded liability is recognized as gain or loss on disposition.
Accounting for Impacts of Involuntary Events and Contingencies	Accounting for Impacts of Involuntary Events and Contingencies — Assets destroyed or damaged as a result of involuntary events are written off or reduced in carrying value to their salvag e value. When recovery of all or a portion of the amount of property damage loss or other covered expenses through insurance proceeds is demonstrated to be probable, a receivable is recorded and offsets the loss or expense up to the amount of the total loss or expense. Proceeds ultimately received from insurance claims for business interruption, direct expenditures and amounts for capital assets in excess of net book value will be recorded to results of operations when collected. No gain is recorded until all contingencies related to the insurance claim have been resolved.
Goodwill	Goodwill — Goodwill represents the excess of the purchase price consideration over the fair value of net assets acquired and recorded in connection with business acquisitions. Goodwill is allocated at the business segment level. Goodwill is tested for impairment on an annual basis or when events or changes in circumstances indicate that such assets may be impaired using either a qualitative or quantitative approach. An impairment loss is measured as the excess of the carrying value of a reporting unit over its fair value, not to exceed the carrying amount of goodwill. For the year ended in 2023, to calculate fair value of the reporting units, management used a combination of methods, including both income-based and market-based methods. The income approach relies on estimates of future revenue growth rates, terminal growth rates, EBITDA margin assumptions, and discount rates. The market approach requires the determination of an appropriate peer group, which is utilized to derive estimated fair values based on selected market multiples. No impairment losses were recognized in goodwill for the years ended in 2023 and 2022, and the Successor and Predecessor periods in 2021.
Indefinite-Lived Intangible Assets	Indefinite-Lived Intangible Assets — Intangible assets represent purchased assets that lack physical substance but can be separately distinguished from goodwill because of contractual or legal rights, or because the asset is capable of being separately sold or exchanged. Federal Communications Commission ("FCC") licenses for wireless spectrum and other perpetual licenses represent indefinite-lived intangible assets. The Company may renew the wireless licenses in a routine manner every ten years for a nominal fee, provided the Company continues to meet the service and geographic coverage provisions required by the FCC. Intangible assets not subject to amortization are tested for impairment annually, or when events or changes in circumstances indicate that the asset might be impaired. No impairment losses were recognized on indefinite-lived intangible assets for the years ended December 31, 2023 and 2022, and the Successor and Predecessor periods in 2021.
Long-Lived Assets	Long-Lived Assets — Management reviews the carrying value of property, plant and equipment and other long-lived assets, including intangible assets with definite lives, when events or changes in circumstances indicate that the carrying amount of the assets may not be recoverable. An impairment loss is recognized when the estimated future undiscounted cash flows expected to result from the use of an asset (or group of assets) and its eventual disposition is less than its carrying amount. An impairment loss is measured as the amount by which the asset’s carrying value exceeds its estimated fair value. Long-lived intangible assets are amortized based on the estimated economic value generated by the asset in future years. No impairment losses were recognized on long-lived assets for the year ended December 31, 2023 and the Successor and Predecessor periods in 2021. For the year ended December 31, 2022, the Company recorded a loss on impairment of long-lived assets of $ 2.7 million related to the impairment of leasehold improvements at the Company’s headquarters. In addition, amortization of the remaining leasehold improvements at the Company’s headquarters was accelerated to reflect the update to management’s estimate of the remaining useful life.
Cost Method Investments	Cost Method Investments — Certain of our cost method investments do not have rea dily determinable fair values. These investments are measured at cost minus impairment, if any, plus or minus changes resulting from observable price changes in orderly transactions for the identical or similar investment of the same issuer. The carrying value of these investments was $ 10.0 million and $ 8.0 million as of December 31, 2023 and 2022, respectively, and was included in "Other noncurrent assets" in the Consolidated Balance Sheets. Investments are reviewed at least annually to determine if changes in circumstances exist that wou ld indicate the carrying value may not be recoverable. If indicators are present then an analysis is performed to determine if carrying value exceeds the estimated fair value. No impairment losses were recognized for cost method investments for the year ended December 31, 2023 and the Successor and Predecessor periods in 2021. A no minal impairment was recognized for the cost method investments for the year ended December 31, 2022.
Leases	Leases — The Company adheres to lease accounting principles described in ASC 842, “Leases.” Under ASC 842, the Company determines if an arrangement is a lease at inception based on the facts and circumstances present. In lease transactions where the Company acts as the lessor, the lease component is accounted for in accordance with ASC 842, and the non-lease component is accounted for in accordance with ASC 606. Although separation of lease and non-lease components is required, certain practical expedients are available that release the Company from this requirement. Adoption of the practical expedient allows the Company to account for each lease component and the related non-lease component together as a single component provided that the timing and patterns of revenue recognition for the components are the same and the combined, single unit of account would be classified as an operating lease. The Company's operating leases for certain services that include Customer Premise Equipment, including handsets and set-top boxes, have lease and non-lease components. In these arrangements, management has concluded that the non-lease components are the predominant characteristic, and, as a result, the Company has elected to account for these arrangements as one single non-lease component recorded as "Revenue" in the Consolidated Statements of Operations in accordance with ASC 606. Right-of-use assets represent our right to use an underlying asset for the lease term, and lease liabilities represent our obligation to make lease payments arising from the lease. Operating lease right-of-use assets and liabilities are recognized at commencement date based on the present value of lease payments over the lease term. Certain adjustments to the right-of-use asset may be required for items such as initial direct costs paid or incentives received. The Company's lease terms include options to extend, terminate or buyout the lease when it is reasonably certain that we will exercise that option. Leases that have contract prices based on variable factors, such as power usage, are recognized as variable lease expense in the period in which the obligation for those payments are incurred. Lease expense for variable lease payments is recognized on a straight-line basis over the lease term.
Revenue Recognition	Revenue Recognition — The Company adheres to revenue recognition principles described in ASC 606. Under ASC 606, revenue is recognized when the Company transfers promised goods or services to customers in an amount that reflects the consideration to which the Company expects to be entitled in exchange for those goods or services. A good or service is considered to be transferred when the customer obtains control. Revenue derived from foreign operations was approximately 7 % of consolidated revenue in both 2023 and 2022. Revenue derived from foreign operations was approximately 6 % of consolidated revenue for both the Successor period and the Predecessor period included within 2021. Network — Revenues from local telephone, special access, internet product and video services, which are billed monthly prior to performance of service, are not recognized upon billing or cash receipt but rather are deferred until the service is provided. Consumer long distance, switched access and other usage based charges are billed monthly in arrears. Network bills service revenue in regular monthly cycles, which are spread throughout the days of the month. As the last day of each billing cycle rarely coincides with the end of the reporting period for usage-based services such as long distance and switched access, we must estimate service revenues earned but not yet billed. These estimates are based upon historical usage, and we adjust these estimates during the period in which actual usage is determinable, typically in the following reporting period. Pricing of local voice services is generally subject to oversight by both state and federal regulatory commissions. Such regulation also covers services, competition, and other public policy issues. Various regulatory rulings and interpretations could result in increases or decreases to revenue in future periods. For long-term indefeasible right of use, or IRU, contracts for fiber circuit capacity, the Company may receive up-front payments for services to be delivered for a period of up to 25 years. In these situations, the Company defers the revenue and amortizes it on a straight-line basis to earnings over the term of the contract. See Note 3 for further information. IT Services and Hardware — Revenue is generally recognized as the service is provided. Maintenance on telephony equipment is deferred and recognized ratably over the term of the underlying customer contract, generally one to three years . For hardware sales, revenue is recognized net of the cost of product and is recognized when the hardware is either shipped or delivered in accordance with the terms of the contract. Installation service revenue is generally recognized when installation is complete. We sell equipment and installation services on both a combined and standalone basis. For the sale of hardware within the Infrastructure Solutions category, the Company evaluated whether it is the principal (in which case we report revenues on a gross basis) or the agent (in which case we report revenues on a net basis). The Company has concluded it acts as an agent because it does not control the inventory before it is transferred to customers, it does not have the ability to direct the product to anyone besides the purchasing customer, and it does not integrate the hardware with any of its own goods or services.
Advertising Expenses	Advertising Expenses — Cost s related to advertising are expensed as incurred. Advertising costs were $ 26.7 million and $ 25.1 million for the years ended 2023 and 2022, respectively, and $ 7.1 million and $ 12.8 million for the Successor and Predecessor periods in 2021, respectively.
Legal Expenses and Contingencies	Legal Expenses and Contingencies — In the normal course of business, the Company is involved in various claims and legal proceedings. Legal costs incurred in connection with loss contingencies are expensed as incurred. Legal claim accruals and contingencies are recorded once determined to be both probable and estimable.
Income Taxes	Income taxes — The Company and its subsidiaries file income tax returns in the U.S. federal jurisdiction as well as various foreign, state and local jurisdictions. The provision for income taxes is based upon income in the consolidated financial statements, rather than amounts reported on the income tax return. The income tax provision consists of an amount for taxes currently payable and an amount for tax consequences deferred to future periods. Deferred income taxes are provided for temporary differences between financial statement and income tax assets and liabilities. Deferred income taxes are recalculated annually at rates then in effect. The Company recognizes future tax benefits, such as net operating losses and tax credits, to the extent that realizing these benefits is considered to be more likely than not. Valuation allowances are recorded to reduce deferred tax assets to amounts that are more likely than not to be realized. The ultimate realization of the deferred income tax assets depends upon the ability to generate future taxable income during the periods in which basis differences and other deductions become deductible and prior to the expiration of the net operating loss carryforwards. Previous tax filings are subject to normal reviews by regulatory agencies until the related statute of limitations expires.
Operating Taxes	Operating taxes — Certain operating taxes such as property, sales, use, and gross receipts taxes are reported as expenses in operating income primarily within cost of services. These taxes are not included in income tax expense because the amounts to be paid are not dependent on our level of income. Liabilities for audit exposures are established based on management's assessment of the probability of payment. The provision for such liabilities is recognized as either property, plant and equipment, operating tax expense, or depreciation expense depending on the nature of the audit exposure. Upon resolution of an audit, any remaining liability not paid is released against the account in which it was originally recorded.
Regulatory Taxes	Regulatory taxes — The Company incurs federal and state regulatory taxes on certain revenue producing transactions. We are permitted to recover certain of these taxes by billing the customer; however, collections cannot exceed the amount due to the federal regulatory agency. These federal regulatory taxes are presented in revenue and cost of services on a gross basis because, while the Company is required to pay the tax, it is not required to collect the tax from customers and, in fact, does not collect the tax from customers in certain instances. The amounts recorded as revenue totaled $ 34.0 million and $ 32.9 million for the years ended December 31, 2023 and 2022, respectively, and $ 13.2 million and $ 27.2 million in the Successor and Predecessor periods in 2021, respectively. The amounts recorded as expense totaled $ 38.0 million and $ 36.9 million for the years ended December 31, 2023 and 2022, respectively, and $ 13.7 million and $ 32.1 million in the Successor and Predecessor periods in 2021, respectively. We record all other federal taxes collected from customers on a net basis.
Stock-Based Compensation	Stock-Based Compensation — Compensation cost is recognized for all share-based awards to employees and non-employee directors. We value all share-based awards to employees at fair value on the date of grant and expense this amount over the requisite service period, generally defined as the applicable vesting period. For awards which contain a performance condition, compensation expense is recognized over the service period, when achievement of the performance condition is deemed probable. The fair value of stock options and stock appreciation rights is determined using the Black-Scholes option-pricing model using assumptions such as volatility, risk-free interest rate, expected holding period and dividends. The fair value of stock awards is based on the Company’s closing share price on the date of grant. For all share-based payments, the Company accounts for forfeitures as they occur. Actual forfeiture activity reduces the total fair value of the awards to be recognized as compensation expense. When an award is granted to an employee who is retirement eligible, the compensation cost is recognized over the service period up to the date that the employee first becomes eligible to retire. In connection with the consummation of the Merger, certain previously granted stock-based awards vested on the Closing Date per the terms of the change of control clauses in each plan and were paid at the share purchase price of $ 15.50 . As a result, the following awards vested and were paid on the date of acquisition: (i) time-based restricted stock units and performance-based stock units associated with the 2019 – 2021 long-term incentive plan granted under the 2017 Long-Term Incentive Plan; (ii) time-based restricted stock units granted to non-employee directors in 2020 under the 2017 Stock Plan for Non-Employee Directors; and (iii) time-based restricted stock units granted under the Hawaiian Telcom 2010 Equity Incentive Plan in the first quarter of 2018 which the Company assumed responsibility for the eventual payout upon the acquisition of Hawaiian Telcom. Due to the accelerated vesting and cash payment of these awards, the Company recorded additional compensation expense of $ 9.3 million to “Selling, general and administrative” expense in the Predecessor period of 2021 on the Consolidated Statements of Operations. As of December 31, 2023 and 2022, there are no outstanding awards granted under the 2017 Long-Term Incentive Plan, 2017 Stock Plan for Non-Employee Directors and Hawaiian Telcom 2010 Equity Incentive Plan.
Pension and Postretirement Benefit Plans	Pension and Postretirement Benefit Plans — The Company maintains qualified and non-qualified defined benefit pension plans, and also provides postretirement healthcare and life insurance benefits for eligible employees. We recognize the overfunded or underfunded status of the defined benefit pension and other postretirement benefit plans as either an asset or liability. Changes in the funded status of these plans are recognized as a component of comprehensive income (loss) in the year they occur. Pension and postretirement healthcare and life insurance benefits earned during the year and interest on the projected benefit obligations are accrued and recognized currently in net periodic benefit cost. Prior service costs and credits are amortized over the average remaining life expectancy of plan participants or remaining service period, based upon whether plan participants are mostly retirees or active employees. Net gains or losses resulting from differences between actuarial estimates or from changes in actuarial assumptions are recognized as a component of annual net periodic benefit cost. Pension and postretirement benefit plans were remeasured as of the Merger Date. Unrecognized actuarial gains or losses that exceed 10% of the projected benefit obligation are amortized on a straight-line basis over the average life expectancy of the participant group for the Cincinnati pension plans and Hawaii pension plans, the average life expectancy of retirees for the Cincinnati postretirement plans and the average remaining service period of active employees for the Hawaii postretirement plans.
Derivative Financial Instruments	Derivative Financial Instruments — The Company accounts for derivative financial instruments by recognizing derivative instruments as either assets or liabilities in the Consolidated Balance Sheets at fair value and recognizing the resulting gains or losses as adjustments to the Consolidated Statements of Operations or "Accumulated Other Comprehensive Income." The Company does not hold or issue derivative financial instruments for trading or speculative purposes. For derivative instruments that hedge the exposure to variability in expected future cash flows that are designated and qualify as cash flow hedges, the gain or loss on the derivative instrument is reported as a component of "Accumulated Other Comprehensive Income" in stockholder's equity and reclassified into earnings in the same period or periods during which the hedged transaction affects earnings. To receive hedge accounting treatment, cash flow hedges must be highly effective in offsetting changes to expected future cash flows on hedged transactions. Derivatives that do not qualify as hedges are adjusted to fair value through earnings in the current period. All cash flows associated with the Company’s derivative instruments are classified as operating activities in the Consolidated Statements of Cash Flows.
Fair Value Measurements	Fair Value Measurements — Fair value of financial and non-financial assets and liabilities is defined as the price representing the amount that would be received to sell an asset or paid to transfer a liability in an orderly transaction between market participants. Fair value is utilized to measure certain investments on a recurring basis. Fair value measurements are also utilized to determine the initial value of assets and liabilities acquired in a business combination, to perform impairment tests, and for disclosure purposes. Management uses quoted market prices and observable inputs to the maximum extent possible when measuring fair value. In the absence of quoted market prices or observable inputs, fair value is determined using valuation models that incorporate assumptions that a market participant would use in pricing the asset or liability. Fair value measurements are classified within one of three levels, which prioritize the inputs used in the methodologies of measuring fair value for assets and liabilities, as follows: Level 1 — Quoted market prices for identical instruments in an active market; Level 2 — Quoted prices for similar assets and liabilities in active markets, quoted prices for identical or similar assets or liabilities in markets that are not active, inputs other than quoted prices that are observable for the asset or liability (i.e., interest rates, yield curves, etc.), and inputs that are derived principally from or corroborated by observable market data by correlation or other means (market corroborated inputs); and Level 3 — Unobservable inputs that reflect management's determination of assumptions that market participants would use in pricing the asset or liability. These inputs are developed based on the best information available, including our own data. The determination of where an asset or liability falls in the hierarchy requires significant judgment.
Foreign Currency Translation and Transactions	Foreign Currency Translation and Transactions — The financial position of foreign subsidiaries is translated at the exchange rates in effect at the end of the period, while revenues and expenses are translated at average rates of exchange during the period. Gains or losses from translation of foreign operations where the local currency is the functional currency are included as components of accumulated other comprehensive income. Gains and losses arising from foreign currency transactions are recorded in "Other (income) expense, net" in th e period incurred.
Recently Issued Accounting Standards	In December 2019, the Financial Accounting Standards Board ("FASB") issued Accounting Standards Update ("ASU") 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes, which simplifies the accounting for income taxes, eliminates certain exceptions within Income Taxes (740) , and clarifies certain aspects of the current guidance to promote consistency among reporting entities, and is effective for fiscal years, and for interim periods within those fiscal years, beginning after December 15, 2020. Most amendments within ASU 2019-12 are required to be applied on a prospective basis, while certain amendments must be applied on a retrospective or modified retrospective basis. The Company adopted the standard effective January 1, 2021 . The Company has evaluated the amendments that must be applied on a retrospective or modified retrospective basis and concluded that no adjustments are necessary. The Company has applied all other amendments on a prospective basis, and the changes did not have a material effect on its consolidated financial statements. In March 2020, the FASB issued ASU 2020-04, Reference Rate Reform (Topic 848): Facilitation of the Effects of Reference Rate Reform on Financial Reporting. The ASU is intended to provide temporary optional expedients and exceptions to the U.S. GAAP guidance on contract modifications and hedge accounting to ease the financial reporting burdens related to the expected market transition from the London Interbank Offered Rate (“LIBOR”) and other interbank offered rates to alternative reference rates. ASU 2020-04 was amended in December 2022 by the provisions of ASU 2022-06, Reference Rate Reform (Topic 848): Deferral of the Sunset Date of Topic 848. These amendments are effective as of any date from the beginning of an interim period that includes or is subsequent to March 12, 2020 and may be applied prospectively to contract modifications made and hedging relationships entered into or evaluated on or before December 31, 2024. The Company does not expect the standard to have a material effect on its consolidated financial statements. In November 2023, the FASB issued ASU 2023-07, Segment Reporting (Topic 280): Improvements to Reportable Segment Disclosures, which improves reportable segment disclosure requirements, primarily through enhanced disclosures about significant segment expenses. The ASU is effective for public business entities for fiscal years beginning after December 15, 2023 and interim periods within fiscal years beginning after December 15, 2024. The amendments within ASU 2023-07 are required to be applied on a retrospective basis. The Company is currently evaluating the effects of this standard on its consolidated financial statements and related disclosures. In December 2023, the FASB issued ASU 2023-09, Income Taxes (Topic 740): Improvements to Income Tax Disclosures, which requires reporting entities to disclose disaggregated information about the entity's effective tax rate reconciliation as well as information on income taxes paid. The ASU is effective for public business entities for annual periods beginning after December 15, 2024, although early adoption is permitted. The amendments in this ASU will be applied on a prospective basis with the option to apply the standard retrospectively. The Company is currently evaluating the effects of this standard on its consolidated financial statements and related disclosures. Other accounting standards that have been issued or proposed by the FASB or other standards-setting bodies that do not require adoption until a future date are not expected to have a material impact on the Company’s consolidated financial statements upon adoption.
Fair Value Measurement	In connection with the Merger, the carrying values of the Company's long-term debt and other financing arrangements include fair value adjustments as of the Merger Date. The fair value of our long-term debt was based on closing or estimated market prices of the Company’s debt at December 31, 2023 and December 31, 2022, which is considered Level 2 of the fair value hierarchy. The fair value of the other financing arrangements was calculated using a discounted cash flow model that incorporates current borrowing rates for obligations of similar duration, which is considered Level 3 of the fair value hierarchy.

Description of Business and A_3

Description of Business and Accounting Policies (Tables)	12 Months Ended
	Dec. 31, 2023
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Schedule of Reconciliation of Cash, Cash Equivalents and Restricted Cash	A reconciliation of cash, cash equivalents and restricted cash to the Consolidated Balance Sheets follows: (dollars in millions) December 31, 2023 December 31, 2022 December 31, 2021 Cash and cash equivalents $ 9.1 $ 9.4 $ 5.6 Restricted cash included in Other noncurrent assets 3.4 3.5 0.5 Cash, cash equivalents and restricted cash per Consolidated Statements of Cash Flows $ 12.5 $ 12.9 $ 6.1

Revenue (Tables)

Revenue (Tables)	12 Months Ended
	Dec. 31, 2023
Revenue from Contract with Customer [Abstract]
Schedule of Expected Revenue to be Recognized for Existing IRU Contracts	The expected revenue to be recognized for existing IRU contracts is as follows: (dollars in millions) 2024 $ 21.4 2025 21.1 2026 21.7 2027 21.8 2028 9.5 Thereafter 97.0
Schedule of Activity of Contract Assets	The following table presents the activity for the Company’s contract assets: Successor Fulfillment Costs Cost of Acquisition Total Contract Assets IT Services IT Services IT Services and Total and Total and Total (dollars in millions) Network Hardware Company Network Hardware Company Network Hardware Company Balance as of September 8, 2021 (remeasured upon Merger) $ — $ — $ — $ — $ — $ — $ — $ — $ — Additions 0.7 0.8 1.5 3.5 0.4 3.9 4.2 1.2 5.4 Amortization — ( 0.1 ) ( 0.1 ) ( 0.2 ) ( 0.1 ) ( 0.3 ) ( 0.2 ) ( 0.2 ) ( 0.4 ) Balance as of December 31, 2021 0.7 0.7 1.4 3.3 0.3 3.6 4.0 1.0 5.0 Additions 2.2 2.6 4.8 11.3 1.6 12.9 13.5 4.2 17.7 Amortization ( 0.4 ) ( 0.6 ) ( 1.0 ) ( 2.6 ) ( 0.9 ) ( 3.5 ) ( 3.0 ) ( 1.5 ) ( 4.5 ) Balance as of December 31, 2022 2.5 2.7 5.2 12.0 1.0 13.0 14.5 3.7 18.2 Additions 2.2 2.0 4.2 11.8 1.1 12.9 14.0 3.1 17.1 Amortization ( 0.8 ) ( 1.4 ) ( 2.2 ) ( 5.5 ) ( 0.8 ) ( 6.3 ) ( 6.3 ) ( 2.2 ) ( 8.5 ) Balance as of December 31, 2023 $ 3.9 $ 3.3 $ 7.2 $ 18.3 $ 1.3 $ 19.6 $ 22.2 $ 4.6 $ 26.8 Predecessor Fulfillment Costs Cost of Acquisition Total Contract Assets IT Services IT Services IT Services and Total and Total and Total (dollars in millions) Network Hardware Company Network Hardware Company Network Hardware Company Balance as of December 31, 2020 $ 3.5 $ 3.9 $ 7.4 $ 15.8 $ 3.6 $ 19.4 $ 19.3 $ 7.5 $ 26.8 Additions 2.5 2.6 5.1 7.2 0.4 7.6 9.7 3.0 12.7 Amortization ( 5.2 ) ( 1.9 ) ( 7.1 ) ( 6.7 ) ( 1.1 ) ( 7.8 ) ( 11.9 ) ( 3.0 ) ( 14.9 ) Balance as of September 7, 2021 $ 0.8 $ 4.6 $ 5.4 $ 16.3 $ 2.9 $ 19.2 $ 17.1 $ 7.5 $ 24.6
Schedule of Revenues Disaggregation by Product and Service Lines	The following table presents revenues disaggregated by product and service lines: Successor Predecessor Year Ended Year Ended September 8, 2021 to January 1, 2021 to (dollars in millions) December 31, 2023 December 31, 2022 December 31, 2021 September 7, 2021 Data $ 557.1 $ 523.3 $ 156.2 $ 334.6 Video 193.7 193.6 60.4 131.8 Voice 218.6 230.8 76.4 177.3 Other 33.5 46.6 10.8 20.5 Total Network 1,002.9 994.3 303.8 664.2 Consulting 342.0 339.4 105.5 193.6 Cloud 118.5 101.7 31.9 66.4 Communications 224.2 222.3 68.5 149.1 Infrastructure Solutions 154.0 164.5 53.4 83.3 Total IT Services and Hardware 838.7 827.9 259.3 492.4 Intersegment revenue ( 24.3 ) ( 26.2 ) ( 8.7 ) ( 17.9 ) Total revenue $ 1,817.3 $ 1,796.0 $ 554.4 $ 1,138.7 The following table presents revenues disaggregated by contract type: Successor Predecessor Year Ended Year Ended September 8, 2021 to January 1, 2021 to (dollars in millions) December 31, 2023 December 31, 2022 December 31, 2021 September 7, 2021 Network Products and services transferred at a point in time $ 26.3 $ 27.3 $ 8.0 $ 15.8 Products and services transferred over time 960.2 947.7 289.3 635.3 Intersegment revenue 16.4 19.3 6.5 13.1 Total Network 1,002.9 994.3 303.8 664.2 IT Services and Hardware Products and services transferred at a point in time 175.4 167.2 59.4 90.1 Products and services transferred over time 655.4 653.8 197.7 397.5 Intersegment revenue 7.9 6.9 2.2 4.8 Total IT Services and Hardware 838.7 827.9 259.3 492.4 Total Revenue Total products and services transferred at a point in time 201.7 194.5 67.4 105.9 Total products and services transferred over time 1,615.6 1,601.5 487.0 1,032.8 Total revenue $ 1,817.3 $ 1,796.0 $ 554.4 $ 1,138.7

Mergers and Acquisitions (Table

Mergers and Acquisitions (Tables)	12 Months Ended
	Dec. 31, 2023
Business Acquisition [Line Items]
Purchase Price Allocation	Based on fair value estimates, the purchase price has been allocated to individual assets acquired and liabilities assumed as follows: (dollars in millions) Agile Assets acquired Receivables and other current assets $ 1.8 Property, plant and equipment 10.2 Operating lease right-of-use assets 27.8 Intangible assets 19.4 Goodwill 35.0 Total assets acquired 94.2 Liabilities assumed Accrued expenses and other current liabilities 2.5 Operating lease liabilities 25.7 Other noncurrent liabilities 0.5 Total liabilities assumed 28.7 Net assets acquired $ 65.5
Fair Values of Identifiable Intangible Assets Acquired	Based on fair value estimates, the identifiable intangible assets acquired are as follows: (dollars in millions) Fair Value Useful Lives Customer relationships $ 16.0 15 years Trade names 2.3 10 years Technology 1.1 7 years Total identifiable intangible assets $ 19.4
Cincinnati Bell Inc. [Member]
Business Acquisition [Line Items]
Schedule of Consideration	The purchase price for Cincinnati Bell Inc. consisted of the following: (dollars in millions) Cash consideration for Cincinnati Bell Inc. stock $ 807.3 Cash consideration for preferred stock 155.2 Cash consideration for debt repayment 658.2 Total purchase price $ 1,620.7
Purchase Price Allocation	Based on fair value estimates, the purchase price has been allocated to individual assets acquired and liabilities assumed as follows: (dollars in millions) Cincinnati Bell Inc. Assets acquired Cash $ 11.2 Receivables 318.5 Inventory, materials and supplies 56.4 Prepaid expenses 5.6 Other current assets 40.5 Property, plant and equipment 1,950.8 Operating lease right-of-use assets 42.3 Goodwill 651.0 Intangible assets 969.6 Deferred tax assets 6.9 Other noncurrent assets 20.2 Total assets acquired 4,073.0 Liabilities assumed Current portion of long-term debt 11.8 Accounts payable 381.1 Unearned revenue and customer deposits 51.2 Accrued taxes 24.6 Accrued interest 19.4 Accrued payroll and benefits 49.3 Other current liabilities 75.0 Long-term debt, less current portion 1,378.0 Operating lease liabilities 38.6 Pension and postretirement benefit obligations 151.6 Pole license agreement obligation 46.7 Deferred income tax liability 153.6 Other noncurrent liabilities 71.4 Total liabilities assumed 2,452.3 Net assets acquired $ 1,620.7
Fair Values of Identifiable Intangible Assets Acquired	The fair values of the identifiable intangible assets acquired on the Merger Date were as follows: (dollars in millions) Fair Value Useful Lives Customer relationships $ 850.0 15 years Trade names 108.0 3 to 10 years Technology 5.0 7 years FCC licenses and spectrum usage rights 6.6 Indefinite Total identifiable intangible assets $ 969.6

Property, Plant and Equipment (

Property, Plant and Equipment (Tables)	12 Months Ended
	Dec. 31, 2023
Property, Plant and Equipment [Abstract]
Schedule of Property, Plant and Equipment	Property, plant and equipment is comprised of the following: December 31, Depreciable (dollars in millions) 2023 2022 Lives (Years) Land and rights-of-way $ 133.5 $ 132.8 20 – Indefinite Buildings and leasehold improvements 223.1 201.3 5 – 40 Network equipment 2,516.1 1,970.5 2 – 50 Office software, furniture, fixtures and vehicles 175.3 135.2 2 – 14 Construction in process 152.1 112.2 n/a Gross value 3,200.1 2,552.0 Accumulated depreciation ( 741.0 ) ( 435.2 ) Property, plant and equipment, net $ 2,459.1 $ 2,116.8

Goodwill and Intangible Assets

Goodwill and Intangible Assets (Tables)	12 Months Ended
	Dec. 31, 2023
Goodwill and Intangible Assets Disclosure [Abstract]
Schedule of Goodwill	The changes in the Company's goodwill consisted of the following: (dollars in millions) IT Services and Hardware Network Total Company Goodwill, balance as of December 31, 2021 $ 157.4 $ 488.9 $ 646.3 Activity during the year: Adjustments to prior year Merger 2.5 2.2 4.7 Acquisition of Agile — 39.4 39.4 Adjustments to postretirement and other benefit obligations (Note 11) 19.6 15.4 35.0 Currency translations ( 1.9 ) — ( 1.9 ) Goodwill, balance as of December 31, 2022 177.6 545.9 723.5 Activity during the year: Adjustments to prior year acquisition of Agile — ( 4.4 ) ( 4.4 ) Acquisition of OTT — 1.1 1.1 Currency translations 0.8 — 0.8 Goodwill, balance as of December 31, 2023 $ 178.4 $ 542.6 $ 721.0
Schedule of Intangible Assets	The Company’s intangible assets consisted of the following: December 31, 2023 December 31, 2022 Gross Gross Carrying Accumulated Net Carrying Accumulated Net (dollars in millions) Amount Amortization Amount Amount Amortization Amount Intangible assets subject to amortization Customer relationships $ 863.5 $ ( 239.3 ) $ 624.2 $ 862.1 $ ( 140.7 ) $ 721.4 Trade names 109.8 ( 36.2 ) 73.6 109.5 ( 20.5 ) 89.0 Technology 6.1 ( 1.9 ) 4.2 6.0 ( 1.0 ) 5.0 Total 979.4 ( 277.4 ) 702.0 977.6 ( 162.2 ) 815.4 Intangible assets not subject to amortization FCC licenses and spectrum usage rights 7.1 — 7.1 6.9 — 6.9 Perpetual licenses 6.8 — 6.8 6.8 — 6.8 Total intangible assets $ 993.3 $ ( 277.4 ) $ 715.9 $ 991.3 $ ( 162.2 ) $ 829.1
Schedule of Estimated Useful Lives for Finite-lived Intangible Assets	The estimated useful lives for each finite-lived intangible asset class are as follows: Customer relationships 15 years Trade names 3 to 10 years Technology 7 years
Schedule of Estimated Amortization Expense	The annual estimated amortization expense for future years is as follows: (dollars in millions) Year ended December 31, 2024 $ 105.6 2025 93.8 2026 86.6 2027 79.4 2028 72.0 Thereafter 264.6 Total $ 702.0

Debt and Other Financing Arra_2

Debt and Other Financing Arrangements (Tables)	12 Months Ended
	Dec. 31, 2023
Debt Disclosure [Abstract]
Schedule of Debt	The Company’s debt consists of the following: December 31, December 31, (dollars in millions) 2023 2022 Current portion of long-term debt: Credit Agreement - Term B-1 Loans $ 5.0 $ 5.0 Credit Agreement - Term B-2 Loans 6.5 6.5 Credit Agreement - Term B-3 Loans 2.0 — 7 1/4 % Notes due 2023 (1) — 22.8 Paniolo Fiber Assets Financing Arrangement 0.5 0.5 Other financing arrangements 0.2 0.3 Finance lease liabilities 12.9 9.9 Current portion of long-term debt 27.1 45.0 Long-term debt, less current portion: Receivables Facility — 186.9 Network Receivables Facility 36.1 — CBTS Receivables Facility 209.9 — Credit Agreement - Revolving Credit Facility 152.5 223.0 Credit Agreement - Term B-1 Loans 485.0 490.0 Credit Agreement - Term B-2 Loans 630.5 637.0 Credit Agreement - Term B-3 Loans 197.0 — Various Cincinnati Bell Telephone notes (1) 95.1 96.4 Paniolo Fiber Assets Financing Arrangement 21.4 21.8 Digital Access Ohio Advance 6.3 0.9 Other financing arrangements 0.6 — Finance lease liabilities 42.1 43.1 1,876.5 1,699.1 Net unamortized discount ( 5.5 ) ( 4.3 ) Unamortized note issuance costs ( 34.6 ) ( 38.8 ) Long-term debt, less current portion 1,836.4 1,656.0 Total debt $ 1,863.5 $ 1,701.0 (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.
Debt Maturity Schedule	The following table summarizes our annual principal maturities of debt and other financing arrangements, excluding lease obligations, for the five years subsequent to December 31, 2023, and thereafter: Other financing (dollars in millions) Debt arrangements Year ended December 31, 2024 $ 14.0 $ 0.2 2025 14.0 0.2 2026 432.9 0.2 2027 13.5 0.1 2028 1,359.9 0.1 Thereafter 6.3 — 1,840.6 0.8 Net unamortized discount ( 5.5 ) — Unamortized note issuance costs ( 34.6 ) — Total debt $ 1,800.5 $ 0.8

Leases (Tables)

Leases (Tables)	12 Months Ended
	Dec. 31, 2023
Leases [Abstract]
Schedule of Supplemental Balance Sheet Information Related to Leases	Supplemental balance sheet information related to the Company's leases was as follows: December 31, December 31, (dollars in millions) Balance Sheet Location 2023 2022 Operating lease assets, net of amortization Operating lease right-of-use assets $ 78.3 $ 73.1 Finance lease assets, net of amortization Property, plant and equipment, net 21.9 16.5 Operating lease liabilities: Current operating lease liabilities Other current liabilities 12.8 12.7 Noncurrent operating lease liabilities Operating lease liabilities 72.0 66.1 Total operating lease liabilities 84.8 78.8 Finance lease liabilities: Current finance lease liabilities Current portion of long-term debt 12.9 9.9 Noncurrent finance lease liabilities Long-term debt, less current portion 42.1 43.1 Total finance lease liabilities $ 55.0 $ 53.0
Components of Lease Expense	The components of lease expense were as follows: Successor Predecessor (dollars in millions) Year Ended December 31, 2023 Year Ended December 31, 2022 September 8, 2021 to December 31, 2021 January 1, 2021 to September 7, 2021 Operating lease cost $ 16.0 $ 14.6 $ 4.3 $ 8.1 Short-term lease cost 0.6 0.3 0.1 0.2 Variable lease cost 3.5 3.6 1.1 2.3 Finance lease cost: Depreciation on leased assets 8.0 4.7 2.0 4.5 Interest on lease liabilities 3.9 3.5 1.2 2.9 Total lease cost $ 32.0 $ 26.7 $ 8.7 $ 18.0
Schedule of Supplemental Cash Flow Information Related to Leases	Supplemental cash flow information related to leases was as follows: Successor Predecessor (dollars in millions) Year Ended December 31, 2023 Year Ended December 31, 2022 September 8, 2021 to December 31, 2021 January 1, 2021 to September 7, 2021 Supplemental Cash Flows Information Cash paid for amounts included in the measurement of lease liabilities: Operating cash flows from finance leases $ 3.9 $ 3.4 $ 1.2 $ 2.9 Operating cash flows from operating leases $ 13.4 $ 11.1 $ 3.4 $ 7.2 Financing cash flows from finance leases $ 12.4 $ 8.3 $ 3.9 $ 9.9 Right-of-use assets obtained in exchange for lease obligations: New operating leases $ 15.7 $ 12.2 $ 5.4 $ 11.5 New finance leases $ 14.4 $ 12.3 $ 2.0 $ 3.8
Schedule of Additional Quantitative Information Related to Leases	Additional quantitative information related to leases was as follows: December 31, December 31, Weighted Average Remaining Lease Term 2023 2022 Operating leases 14.03 years 12.06 years Finance leases 4.82 years 5.67 years Weighted Average Discount Rate Operating leases 7.34 % 5.85 % Finance leases 7.55 % 7.23 %
Schedule of Future Minimum Lease Payments Under Non-Cancellable Leases	Future minimum lease payments under non-cancellable leases as of December 31, 2023 are as follows: (dollars in millions) Operating Leases Finance Leases Year ended December 31, 2024 $ 15.5 $ 16.8 2025 13.1 13.9 2026 11.4 10.8 2027 9.5 9.6 2028 9.1 8.5 Thereafter 91.9 7.5 Total future minimum lease payments 150.5 67.1 Less imputed interest ( 64.7 ) ( 11.2 ) Total $ 85.8 $ 55.9
Schedule of Future Minimum Lease Payments to be Received under Non-Cancellable Leases	Future minimum lease payments to be received under non-cancellable leases as of December 31, 2023 are as follows: (dollars in millions) Operating Leases Year ended December 31, 2024 $ 3.4 2025 3.1 2026 2.9 2027 2.9 2028 2.6 Thereafter 11.8 Total future minimum lease payments 26.7 Less imputed interest ( 7.7 ) Total $ 19.0

Commitments and Contingencies (

Commitments and Contingencies (Tables)	12 Months Ended
	Dec. 31, 2023
Commitments and Contingencies Disclosure [Abstract]
Schedule of Future Minimum Payments Under Base Arrangements and Renewal Options	The future minimum payments under the base agreements, as well as the renewal options for each arrangement which the Company expects to exercise, are as follows: (dollars in millions) Year ended December 31, 2024 $ 5.8 2025 5.8 2026 5.8 2027 5.8 2028 4.3 Thereafter 36.0 Total future minimum financing obligation payments 63.5 Less imputed interest ( 16.9 ) Total $ 46.6
Schedule of Change in Asset Retirement Obligation	The following table presents the activity for the Company’s asset retirement obligations: Year Ended Year Ended (dollars in millions) December 31, 2023 December 31, 2022 Balance, beginning of period $ 7.2 $ 7.3 Liabilities incurred — — Liabilities settled ( 0.2 ) ( 0.4 ) Accretion expense 0.3 0.3 Balance, end of period $ 7.3 $ 7.2

Financial Instruments and Fai_2

Financial Instruments and Fair Value Measurements (Tables)	12 Months Ended
	Dec. 31, 2023
Fair Value Disclosures [Abstract]
Schedule of Fair Values of Interest rate Swaps and Interest Rate Caps Recorded in Condensed Consolidated Balance Sheets	As of December 31, 2023, the fair values of the interest rate swaps and interest rate caps are recorded in the Consolidated Balance Sheets as follows: Quoted Prices in Significant Significant December 31, Active Markets Observable Inputs Unobservable Inputs (dollars in millions) Balance Sheet Location 2023 Level 1 Level 2 Level 3 Assets: Interest Rate Swap Other current assets $ 10.7 $ — $ 10.7 $ — Interest Rate Swap Other noncurrent assets $ 1.8 $ — $ 1.8 $ — Interest Rate Cap Other current assets $ 3.2 $ — $ 3.2 $ — Liabilities: Interest Rate Swap Other noncurrent liabilities $ 3.8 $ — $ 3.8 $ — Interest Rate Cap Other noncurrent liabilities $ 2.6 $ — $ 2.6 $ — As of December 31, 2022, the fair values of the interest rate swaps and interest rate caps are recorded in the Consolidated Balance Sheets as follows: Quoted Prices in Significant Significant December 31, Active Markets Observable Inputs Unobservable Inputs (dollars in millions) Balance Sheet Location 2022 Level 1 Level 2 Level 3 Assets: Interest Rate Swap Other current assets $ 7.2 $ — $ 7.2 $ — Interest Rate Swap Other noncurrent assets $ 5.1 $ — $ 5.1 $ — Interest Rate Cap Other current assets $ 3.8 $ — $ 3.8 $ — Liabilities: Interest Rate Cap Other noncurrent liabilities $ 2.4 $ — $ 2.4 $ —
Schedule of Summarizes the Location of Gains in the Condensed Consolidated Statements of Operations in Addition to the Derivative Contract Type	The following table summarizes the location of gains in the Consolidated Statements of Operations that were recognized during the years ended December 31, 2023 and 2022, in addition to the derivative contract type: Year ended Year ended (dollars in millions) Statement of Operations Location December 31, 2023 December 31, 2022 Interest Rate Swap Other (income) expense, net $ ( 9.3 ) $ ( 11.7 ) Interest Rate Cap Other (income) expense, net $ ( 3.8 ) $ ( 0.3 )
Amount of Gains Recognized in Accumulated Other Comprehensive Income Net of Reclassification into Earnings	The amount of gains recognized in Accumulated Other Comprehensive Income ("AOCI") (effective portion) net of reclassifications into earnings is as follows: Successor Predecessor Year Ended Year Ended September 8, 2021 to January 1, 2021 to (dollars in millions) December 31, 2023 December 31, 2022 December 31, 2021 September 7, 2021 Interest Rate Swap $ — $ — $ — $ 5.3
Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss)	The amount of losses reclassified from AOCI into earnings is as follows: Successor Predecessor Year Ended Year Ended September 8, 2021 to January 1, 2021 to (dollars in millions) Statement of Operations Location December 31, 2023 December 31, 2022 December 31, 2021 September 7, 2021 Interest Rate Swap Other (income) expense, net $ — $ — $ — $ ( 20.1 ) Interest Rate Swap Interest expense $ — $ — $ — $ ( 5.4 )
Schedule of Carrying and Fair Values by Balance Sheet Grouping	The carrying and fair values of these items are as follows: December 31, 2023 December 31, 2022 (dollars in millions) Carrying Value Fair Value Carrying Value Fair Value Long-term debt, including current portion* $ 1,842.3 $ 1,815.1 $ 1,686.5 $ 1,647.0 Other financing arrangements 46.6 40.4 50.1 45.3 * Excludes finance leases, other financing arrangements and note issuance costs

Pension and Postretirement Pl_2

Pension and Postretirement Plans (Tables)	12 Months Ended
	Dec. 31, 2023
Schedule of Pension and Postretirement Costs Benefit	Pension and postretirement costs (benefits) for these plans were comprised of: Pension Benefits Postretirement and Other Benefits Successor Predecessor Successor Predecessor (dollars in millions) Year Ended December 31, 2023 Year Ended December 31, 2022 September 8, 2021 to December 31, 2021 January 1, 2021 to September 7, 2021 Year Ended December 31, 2023 Year Ended December 31, 2022 September 8, 2021 to December 31, 2021 January 1, 2021 to September 7, 2021 Service cost $ — $ — $ — $ — $ 0.5 $ 0.8 $ 0.1 $ 0.3 Interest cost on projected benefit obligation 22.0 16.3 4.7 10.2 5.2 4.2 0.8 1.8 Expected return on plan assets ( 20.8 ) ( 27.5 ) ( 10.2 ) ( 19.9 ) — — — — Amortization of: Prior service benefit — — — — ( 0.7 ) ( 0.2 ) — ( 1.7 ) Actuarial (gain) loss ( 0.3 ) — — 16.0 ( 4.7 ) ( 0.6 ) — — Pension/postretirement cost (benefit) $ 0.9 $ ( 11.2 ) $ ( 5.5 ) $ 6.3 $ 0.3 $ 4.2 $ 0.9 $ 0.4
Schedule of Changes in Projected Benefit Obligations	Changes in the plans' benefit obligations and funded status are as follows: Pension Benefits Postretirement and Other Benefits (dollars in millions) Year Ended December 31, 2023 Year Ended December 31, 2022 Year Ended December 31, 2023 Year Ended December 31, 2022 Change in benefit obligation: Benefit obligation at beginning of period $ 439.5 $ 611.9 $ 102.4 $ 100.9 Service cost — — 0.5 0.8 Interest cost 22.0 16.3 5.2 4.2 Hawaii Plan Adjustment — — — 45.9 Plan Amendment 0.1 — — ( 4.7 ) Actuarial loss (gain) (a) (b) 8.8 ( 146.3 ) 1.1 ( 37.1 ) Benefits paid ( 36.7 ) ( 34.9 ) ( 9.1 ) ( 9.8 ) Settlements (c) — ( 7.5 ) — — Other — — 2.0 2.2 Benefit obligation at end of period $ 433.7 $ 439.5 $ 102.1 $ 102.4 Change in plan assets: Fair value of plan assets at beginning of period $ 390.6 $ 559.2 $ 3.2 $ 3.3 Actual return (loss) on plan assets 41.7 ( 128.3 ) — 0.1 Employer contributions 2.2 2.1 6.9 7.3 Benefits paid ( 36.7 ) ( 34.9 ) ( 7.0 ) ( 7.5 ) Settlements (c) — ( 7.5 ) — — Fair value of plan assets at end of period 397.8 390.6 3.1 3.2 Unfunded status $ ( 35.9 ) $ ( 48.9 ) $ ( 99.0 ) $ ( 99.2 ) (a) The actuarial loss recorded for the year ended December 31, 2023 for the pension plans was primarily driven by a decrease in the discount rate. The actuarial (gain) recorded during the year ended December 31, 2022 for the pension plans was primarily driven by an increase in the discount rate. (b) The actuarial loss recorded for the year ended December 31, 2023 for the postretirement plans was primarily driven by a decrease in the discount rate. The actuarial (gain) recorded for the year ended December 31, 2022 for the postretirement plans was primarily driven by an increase in the discount rate, updated census data and the result of actual versus expected benefit payments. (c) Participant elections to take lump sum payments that exceeded the settlement accounting threshold and have been categorized as settlements.
Schedule of Amounts Recognized in Balance Sheet	The projected benefit obligation is recognized in the Consolidated Balance Sheets as follows: Pension Benefits Postretirement and Other Benefits December 31, December 31, (dollars in millions) 2023 2022 2023 2022 Other noncurrent assets $ 2.1 $ — $ — $ — Accrued payroll and benefits 1.5 1.5 7.9 8.1 Pension and postretirement benefit obligations 36.5 47.4 91.1 91.1 Total $ 35.9 $ 48.9 $ 99.0 $ 99.2
Schedule of Net Periodic Benefit Cost Not yet Recognized	Amounts recognized in "Accumulated other comprehensive income" in the Consolidated Balance Sheets which have not yet been recognized in net pension costs consisted of the following: Pension Benefits Postretirement and Other Benefits December 31, December 31, (dollars in millions) 2023 2022 2023 2022 Prior service cost, net of tax of ($ 0.4 ), ($ 0.2 ) $ — $ — $ ( 1.2 ) $ ( 0.6 ) Actuarial gain (loss), net of tax of ($ 0.8 ), ($ 1.6 ), $ 8.9 , $ 10.2 5.8 ( 5.1 ) 28.6 32.8 Total $ 5.8 $ ( 5.1 ) $ 27.4 $ 32.2
Schedule of Amounts Recognized in Other Comprehensive Income (Loss)	Amounts recognized in "Accumulated other comprehensive income" on the Consolidated Statements of Equity (Deficit) and the Consolidated Statements of Comprehensive Income (Loss) are shown below: Pension Benefits Postretirement and Other Benefits (dollars in millions) Year Ended December 31, 2023 Year Ended December 31, 2022 Year Ended December 31, 2023 Year Ended December 31, 2022 Prior service cost recognized: Reclassification adjustments $ — $ — $ ( 0.8 ) $ 4.7 Actuarial gain (loss) recognized: Reclassification adjustments ( 0.3 ) — ( 4.7 ) ( 0.8 ) Actuarial gain (loss) arising during the period 12.0 ( 9.4 ) ( 0.8 ) 37.6
Schedule of Allocation of Plan Assets	The fair values of the pension plan assets at December 31, 2023 and 2022 by asset category are as follows: (dollars in millions) December 31, Quoted prices Significant Significant Mutual funds U.S. equity index funds $ 72.9 $ 72.9 $ — $ — International equity index funds 72.6 72.6 — — Fixed income bond funds 252.0 252.0 — — Fixed income short-term money market funds 0.3 0.3 — — Group insurance contract 3.1 — — — Total $ 400.9 $ 397.8 $ — $ — (dollars in millions) December 31, Quoted prices Significant Significant Mutual funds U.S. equity index funds $ 71.5 $ 71.5 $ — $ — International equity index funds 74.5 74.5 — — Fixed income bond funds 244.5 244.5 — — Fixed income short-term money market funds 0.1 0.1 — — Group insurance contract 3.2 — — — Total $ 393.8 $ 390.6 $ — $ —
Schedule of Expected Benefit Payments	The following benefit payments, which reflect expected future service, as appropriate, are expected to be paid over the next ten years: (dollars in millions) Pension Postretirement Medicare 2024 $ 48.2 $ 8.0 $ ( 0.1 ) 2025 46.3 7.9 ( 0.1 ) 2026 42.7 7.7 ( 0.1 ) 2027 40.3 7.6 ( 0.1 ) 2028 38.1 7.5 ( 0.1 ) Years 2029 - 2033 159.7 35.4 ( 0.2 )
Cincinnati Plans [Member]
Schedule of Health Care Cost Trend Rates	The assumed healthcare cost trend rate used to measure the postretirement health benefit obligation is shown below: Cincinnati Plans Year Ended Year Ended December 31, 2023 December 31, 2022 Healthcare cost trend 7.00 % 6.50 % Rate to which the cost trend is assumed to decline (ultimate trend rate) 4.80 % 4.80 % Year the rates reach the ultimate trend rate 2033 2032
Cincinnati Plans [Member] | Net Periodic Cost [Member]
Schedule of Assumptions Used	The following are the weighted-average assumptions used in measuring the net periodic cost of the pension and postretirement benefits: Cincinnati Plans Pension Benefits Postretirement and Other Benefits Successor Predecessor Successor Predecessor Year Ended December 31, 2023 Year Ended December 31, 2022 September 8, 2021 to December 31, 2021 January 1, 2021 to September 7, 2021 Year Ended December 31, 2023 Year Ended December 31, 2022 September 8, 2021 to December 31, 2021 January 1, 2021 to September 7, 2021 Discount rate 5.40 % 2.70 % 2.60 % 2.40 % 5.40 % 2.80 % 2.60 % 2.40 % Expected long-term rate of return 6.00 % 5.80 % 6.00 % 6.00 % — — — — Cash balance interest credit rate 4.00 % 4.00 % 4.00 % 4.00 % — — — — Future compensation growth rate — — — — — — — —
Cincinnati Plans [Member] | Projected Benefit Obligation [Member]
Schedule of Assumptions Used	The following are the weighted-average assumptions used in accounting for and measuring the projected benefit obligations: Cincinnati Plans Pension Benefits Postretirement and Other Benefits Year Ended December 31, 2023 Year Ended December 31, 2022 Year Ended December 31, 2023 Year Ended December 31, 2022 Discount rate 5.00 % 5.40 % 5.00 % 5.40 % Cash balance interest credit rate 4.00 % 4.00 % — — Future compensation growth rate — — — —
Hawaii Plans [Member] | Net Periodic Cost [Member]
Schedule of Assumptions Used	Hawaii Plans Pension Benefits Postretirement and Other Benefits Successor Predecessor Successor Predecessor Year Ended December 31, 2023 Year Ended December 31, 2022 September 8, 2021 to December 31, 2021 January 1, 2021 to September 7, 2021 Year Ended December 31, 2023 Year Ended December 31, 2022 September 8, 2021 to December 31, 2021 January 1, 2021 to September 7, 2021 Discount rate 5.40 % 3.90 % 2.50 % 2.30 % 5.50 % 3.70 % 2.80 % 2.60 % Expected long-term rate of return 5.50 % 5.00 % 6.00 % 6.00 % — — — — Cash balance interest credit rate 5.10 % 1.90 % 1.10 % 1.20 % — — — — Future compensation growth rate — — — — — — — —
Hawaii Plans [Member] | Projected Benefit Obligation [Member]
Schedule of Assumptions Used	Hawaii Plans Pension Benefits Postretirement and Other Benefits Year Ended December 31, 2023 Year Ended December 31, 2022 Year Ended December 31, 2023 Year Ended December 31, 2022 Discount rate 5.00 % 5.40 % 5.10 % 5.50 % Cash balance interest credit rate — 5.10 % — — Future compensation growth rate — — — —

Equity (Tables)

Equity (Tables)	12 Months Ended
	Dec. 31, 2023
Shareowners Deficit [Abstract]
Schedule of Changes in Accumulated Other Comprehensive Income (Loss) by Component	The changes in accumulated other comprehensive income (loss) by component were as follows: (dollars in millions) Unrecognized Foreign Total Balance as of December 31, 2021 $ 2.6 $ ( 1.4 ) $ 1.2 Remeasurement of benefit obligations 25.1 — 25.1 Reclassifications, net ( 0.6 ) (a) — ( 0.6 ) Foreign currency loss — ( 6.2 ) ( 6.2 ) Balance as of December 31, 2022 $ 27.1 $ ( 7.6 ) $ 19.5 Remeasurement of benefit obligations 10.5 — 10.5 Reclassifications, net ( 4.4 ) (a) — ( 4.4 ) Foreign currency gain — 2.6 2.6 Balance as of December 31, 2023 $ 33.2 $ ( 5.0 ) $ 28.2 (a) These reclassifications are included in the other components of net periodic pension and postretirement benefit plans expense and represent amortization of prior service benefit and actuarial gain, net of tax. The other components of net periodic pension and postretirement benefit plans expense are recorded in "Other components of pension and postretirement benefit plans expense (benefit)" on the Consolidated Statements of Operations. See Note 11 for further disclosures.

Income Taxes (Tables)

Income Taxes (Tables)	12 Months Ended
	Dec. 31, 2023
Income Tax Disclosure [Abstract]
Schedule of Income Tax Expense (Benefit) for Continuing Operations	Income tax expense (benefit) for continuing operations consisted of the following: Successor Predecessor (dollars in millions) Year Ended Year Ended September 8, 2021 to December 31, 2021 January 1, 2021 to September 7, 2021 Current: Federal $ — $ — $ — $ — State and local 0.5 0.6 ( 0.4 ) 0.7 Foreign 6.0 6.4 1.6 3.1 Total current 6.5 7.0 1.2 3.8 Deferred: Federal ( 52.8 ) ( 37.9 ) ( 9.2 ) ( 16.1 ) State and local ( 5.2 ) 2.7 7.4 ( 3.8 ) Foreign ( 1.7 ) ( 3.1 ) ( 0.7 ) ( 0.8 ) Total deferred ( 59.7 ) ( 38.3 ) ( 2.5 ) ( 20.7 ) Valuation allowance 18.9 ( 3.8 ) ( 6.0 ) — Total $ ( 34.3 ) $ ( 35.1 ) $ ( 7.3 ) $ ( 16.9 )
Schedule of Effective Income Tax Rate Reconciliation	The following is a reconciliation of the statutory federal income tax rate with the effective tax rate for each period: Successor Predecessor Year Ended December 31, 2023 Year Ended December 31, 2022 September 8, 2021 to December 31, 2021 January 1, 2021 to September 7, 2021 U.S. federal statutory rate 21.0 % 21.0 % 21.0 % 21.0 % State and local income taxes, net of federal income tax 3.2 3.1 2.1 2.5 Transaction costs — — ( 0.4 ) ( 4.1 ) Non-Deductible meals and entertainment ( 0.3 ) ( 0.3 ) ( 0.2 ) ( 0.3 ) State net operating loss adjustments ( 1.4 ) ( 4.4 ) ( 18.4 ) — Change in valuation allowance, net of federal income tax ( 8.3 ) 2.3 17.5 — Change in uncertain tax positions — — 0.1 — Research and development credits 1.4 — — — Other differences, net ( 0.5 ) ( 0.5 ) ( 0.4 ) ( 1.9 ) Effective tax rate 15.1 % 21.2 % 21.3 % 17.2 %
Schedule of Income Tax (Benefit) Provision Charged to Continuing Operations or Accumulated Other Comprehensive Income	The income tax (benefit) provision was charged to continuing operations or accumulated other comprehensive income as follows: Successor Predecessor (dollars in millions) Year Ended December 31, 2023 Year Ended December 31, 2022 September 8, 2021 to December 31, 2021 January 1, 2021 to September 7, 2021 Income tax (benefit) provision related to: Continuing operations $ ( 34.3 ) $ ( 35.1 ) $ ( 7.3 ) $ ( 16.9 ) Accumulated other comprehensive (loss) income ( 0.7 ) 7.6 0.8 10.8
Schedule of Deferred Tax Assets and Liabilities	The components of our deferred tax assets and liabilities were as follows: December 31, (dollars in millions) 2023 2022 Deferred tax assets: Net operating loss carryforwards $ 209.0 $ 227.6 Finance and operating lease obligations 19.8 21.6 Pension and postretirement benefits 32.8 35.8 Employee benefits 3.9 4.7 Interest limitation 48.8 16.7 State tax credit 7.4 8.0 Other 30.8 23.4 Total deferred tax assets 352.5 337.8 Valuation allowance ( 32.8 ) ( 15.7 ) Total deferred tax assets, net of valuation allowance $ 319.7 $ 322.1 Deferred tax liabilities: Property, plant and equipment and intangibles $ ( 361.8 ) $ ( 410.5 ) Other ( 9.3 ) ( 7.6 ) Total deferred tax liabilities ( 371.1 ) ( 418.1 ) Net deferred tax liabilities $ ( 51.4 ) $ ( 96.0 )
Schedule of Reconciliation of Unrecognized Tax Benefits	A reconciliation of the unrecognized tax benefits is as follows: Successor Predecessor (dollars in millions) Year Ended December 31, 2023 Year Ended December 31, 2022 September 8, 2021 to December 31, 2021 January 1, 2021 to September 7, 2021 Balance, beginning of year $ 19.3 $ 19.3 $ 19.2 $ 19.2 Change in tax positions for the current year 0.3 — 0.1 — Balance, end of year $ 19.6 $ 19.3 $ 19.3 $ 19.2

Stock-Based and Deferred Comp_2

Stock-Based and Deferred Compensation Plans (Tables)	12 Months Ended
	Dec. 31, 2023
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Schedule of Share-based Compensation, Stock Options and Stock Appreciation Rights Award Activity	The following table summarizes stock options and stock appreciation rights activity: Successor Predecessor Year Ended December 31, 2023 Year Ended December 31, 2022 September 8, 2021 to December 31, 2021 January 1, 2021 to September 7, 2021 (in thousands, except per share amounts) Shares Weighted- Shares Weighted- Shares Weighted- Shares Weighted- Outstanding at beginning of period — $ — — $ — — $ — 143 $ 18.37 Exercised — — — — — — — — Forfeited — — — — — — — — Awards cancelled pursuant to Merger Agreement — — — — — — ( 143 ) 18.37 Outstanding and exercisable at end of period — $ — — $ — — $ — — $ — (dollars in millions) Compensation expense for the period $ — $ — $ — $ — Tax benefit related to compensation expense $ — $ — $ — $ — Intrinsic value of awards exercised $ — $ — $ — $ — Cash received from awards exercised $ — $ — $ — $ — Grant date fair value of awards vested $ — $ — $ — $ —
Performance Based Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Schedule of Nonvested Share Activity	The following table summarizes our outstanding performance-based restricted award activity: Successor Predecessor Year Ended December 31, 2023 Year Ended December 31, 2022 September 8, 2021 to December 31, 2021 January 1, 2021 to September 7, 2021 (in thousands, except per share amounts) Shares Weighted- Shares Weighted- Shares Weighted- Shares Weighted- Non-vested at beginning of period — $ — — $ — — $ — 1,037 $ 10.87 Granted* — — — — — — — — Vested — — — — — — ( 1,037 ) 10.87 Forfeited — — — — — — — — Non-vested at end of period — $ — — $ — — $ — — $ — (dollars in millions) Compensation expense for the period $ — $ — $ — $ 6.2 Tax benefit related to compensation expense $ — $ — $ — $ ( 1.5 ) Grant date fair value of awards vested $ — $ — $ — $ 11.3 * Assumes the maximum number of awards that can be earned if the performance conditions are achieved.
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Schedule of Nonvested Share Activity	The following table summarizes our time-based restricted award activity: Successor Predecessor Year Ended December 31, 2023 Year Ended December 31, 2022 September 8, 2021 to December 31, 2021 January 1, 2021 to September 7, 2021 (in thousands, except per share amounts) Shares Weighted- Shares Weighted- Shares Weighted- Shares Weighted- Non-vested at beginning of period — $ — — $ — — $ — 792 $ 11.42 Granted — — — — — — — — Vested — — — — — — ( 792 ) 11.42 Forfeited — — — — — — — — Non-vested at end of period — $ — — $ — — $ — — $ — (dollars in millions) Compensation expense for the period $ — $ — $ — $ 6.9 Tax benefit related to compensation expense $ — $ — $ — $ ( 1.7 ) Grant date fair value of awards vested $ — $ — $ — $ 9.0

Restructuring and Severance (Ta

Restructuring and Severance (Tables)	12 Months Ended
	Dec. 31, 2023
Restructuring and Related Activities [Abstract]
Summary of activity in the restructuring and severance liability	Liabilities have been established for employee separations. A summary of activity in the restructuring and severance liability is shown below: Successor (dollars in millions) Employee Separation Balance as of September 8, 2021 $ 0.1 Charges 0.6 Utilizations ( 0.5 ) Balance as of December 31, 2021 0.2 Charges 2.0 Utilizations ( 2.2 ) Balance as of December 31, 2022 — Charges 13.8 Utilizations ( 3.3 ) Balance as of December 31, 2023 $ 10.5 Predecessor (dollars in millions) Employee Separation Balance as of December 31, 2020 $ 4.5 Charges 1.2 Utilizations ( 5.6 ) Balance as of September 7, 2021 $ 0.1
Summary of Restructuring Activity by Business Segment	A summary of restructuring activity by business segment is presented below: Successor (dollars in millions) Network IT Services and Hardware Corporate Total Balance as of September 8, 2021 $ 0.1 $ — $ — $ 0.1 Charges — 0.6 — 0.6 Utilizations — ( 0.5 ) — ( 0.5 ) Balance as of December 31, 2021 0.1 0.1 — 0.2 Charges — 2.0 — 2.0 Utilizations ( 0.1 ) ( 2.1 ) — ( 2.2 ) Balance as of December 31, 2022 — — — — Charges 10.3 3.0 0.5 13.8 Utilizations ( 0.6 ) ( 2.7 ) — ( 3.3 ) Balance as of December 31, 2023 $ 9.7 $ 0.3 $ 0.5 $ 10.5 Predecessor (dollars in millions) Network IT Services and Hardware Corporate Total Balance as of December 31, 2020 $ 4.4 $ — $ 0.1 $ 4.5 Charges ( 0.5 ) 1.7 — 1.2 Utilizations ( 3.8 ) ( 1.7 ) ( 0.1 ) ( 5.6 ) Balance as of September 7, 2021 $ 0.1 $ — $ — $ 0.1

Business Segment Information (T

Business Segment Information (Tables)	12 Months Ended
	Dec. 31, 2023
Segment Reporting [Abstract]
Selected Financial Data for the Company's Business Segment Information	Our business segment information is as follows: Successor Predecessor Year Ended Year Ended September 8, 2021 to January 1, 2021 to (dollars in millions) December 31, 2023 December 31, 2022 December 31, 2021 September 7, 2021 Revenue Network $ 1,002.9 $ 994.3 $ 303.8 $ 664.2 IT Services and Hardware 838.7 827.9 259.3 492.4 Intersegment ( 24.3 ) ( 26.2 ) ( 8.7 ) ( 17.9 ) Total revenue $ 1,817.3 $ 1,796.0 $ 554.4 $ 1,138.7 Intersegment revenue Network $ 16.4 $ 19.3 $ 6.5 $ 13.1 IT Services and Hardware 7.9 6.9 2.2 4.8 Total intersegment revenue $ 24.3 $ 26.2 $ 8.7 $ 17.9 Operating (loss) income Network $ ( 52.7 ) $ ( 56.2 ) $ ( 6.3 ) $ 78.3 IT Services and Hardware ( 7.1 ) ( 8.4 ) 4.0 25.2 Corporate ( 22.9 ) ( 32.7 ) ( 6.8 ) ( 75.8 ) Total operating (loss) income $ ( 82.7 ) $ ( 97.3 ) $ ( 9.1 ) $ 27.7 Expenditures for long-lived assets* Network $ 627.5 $ 524.9 $ 114.8 $ 199.8 IT Services and Hardware 25.5 30.1 13.9 15.9 Corporate 0.2 0.1 1,620.7 — Total expenditures for long-lived assets $ 653.2 $ 555.1 $ 1,749.4 $ 215.7 Depreciation and amortization Network $ 355.3 $ 393.3 $ 113.0 $ 166.9 IT Services and Hardware 94.0 103.5 31.4 27.9 Corporate 0.3 0.3 0.2 0.1 Total depreciation and amortization $ 449.6 $ 497.1 $ 144.6 $ 194.9 * Includes cost of acquisitions in the years ended December 31, 2023 and 2022 and in the Predecessor and Successor periods in 2021 and the purchase of perpetual licenses in the year ended December 31, 2022. As of December 31, (dollars in millions) 2023 2022 Assets Network $ 3,537.6 $ 3,218.5 IT Services and Hardware 1,088.7 812.2 Corporate and eliminations 125.7 404.9 Total assets $ 4,752.0 $ 4,435.6

Supplemental Cash Flow Inform_2

Supplemental Cash Flow Information (Tables)	12 Months Ended
	Dec. 31, 2023
Supplemental Cash Flow Information [Abstract]
Schedule of Supplemental Cash Flow Information	Successor Predecessor Year Ended Year Ended September 8, 2021 to January 1, 2021 to (dollars in millions) December 31, 2023 December 31, 2022 December 31, 2021 September 7, 2021 Capitalized interest expense $ 8.2 $ 3.1 $ 0.6 $ 1.3 Cash paid for: Interest 157.0 84.6 45.7 89.9 Income taxes, net of refunds 6.6 6.4 3.3 3.8 Noncash investing and financing activities: Acquisition of property by assuming debt and other financing arrangements 7.4 10.5 5.8 3.8 Acquisition of property on account 93.7 79.1 51.2 54.9

Description of Business and A_4

Description of Business and Accounting Policies - Narrative (Details)		3 Months Ended		4 Months Ended		8 Months Ended	12 Months Ended
	Sep. 07, 2021 USD ($) $ / shares	Sep. 30, 2023 USD ($)	Sep. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)	Dec. 31, 2021 USD ($)	Sep. 07, 2021 USD ($) $ / shares	Dec. 31, 2023 USD ($) Employee Customer shares	Dec. 31, 2022 USD ($) Customer shares	Dec. 31, 2024 USD ($)	Aug. 31, 2023 USD ($)	Mar. 31, 2023 Facility
Description of Business and Accounting Policies [Line Items]
Entity number of employees | Employee							5,300
Company employees participating in collective bargaining agreement, percentage							23%
Trade receivables due from customers, range, minimum							21 days
Trade receivables due from customers, range, maximum							90 days
Unbilled receivables, current							$ 78,800,000	$ 66,900,000
Allowance for uncollectible accounts							17,700,000	12,000,000
Fees related to accounts receivable sales							900,000	1,800,000
Accounts receivable sold							3,500,000	56,800,000
Goodwill, impairment loss				$ 0		$ 0	0	0
Impairment losses on Indefinite-lived intangible assets				0		0	0	0
Loss on impairment of long-lived assets			$ 2,700,000	0		0	0	2,700,000
Cost method investments							10,000,000	8,000,000
Impairment losses on cost method investments				$ 0		$ 0	$ 0	$ 0
Revenue derived from foreign operations				6%		6%	7%	7%
Service delivery period, indefeasible right of use contracts, upper range, in years							25 years
Customer contract, maintenance on telephony equipment, lower range, in years							1 year
Customer contract, maintenance on telephony equipment, upper range, in years							3 years
Advertising expense				$ 7,100,000		$ 12,800,000	$ 26,700,000	$ 25,100,000
Regulatory taxes included in revenue				13,200,000		27,200,000	34,000,000	32,900,000
Regulatory taxes included in expense				$ 13,700,000		$ 32,100,000	38,000,000	$ 36,900,000
Capital contributions committed by parent										$ 600,000,000
Capital contributions received from parent					$ 1,716,100,000		400,000,000
Number of receivable facility | Facility											2
Forecast
Description of Business and Accounting Policies [Line Items]
Capital contributions committed by parent for next fiscal year									$ 200,000,000
Additional Paid-in Capital [Member]
Description of Business and Accounting Policies [Line Items]
Capital contributions received from parent		$ 400,000,000			$ 1,716,100,000		$ 400,000,000
Hawaiian Telcom 2010 Equity Incentive Plan
Description of Business and Accounting Policies [Line Items]
Number of outstanding awards granted | shares							0	0
Cincinnati Bell Incorporation
Description of Business and Accounting Policies [Line Items]
Business Acquisition, Share Price | $ / shares	$ 15.50					$ 15.50
Cincinnati Bell Incorporation | 2017 Stock Plan for Non-Employee Directors
Description of Business and Accounting Policies [Line Items]
Number of outstanding awards granted | shares							0	0
Cincinnati Bell Incorporation | SG&A [Member]
Description of Business and Accounting Policies [Line Items]
Incremental stock-based compensation expense	$ 9,300,000					$ 9,300,000
Cincinnati Bell Incorporation | SG&A [Member] | 2017 Long-Term Incentive Plan
Description of Business and Accounting Policies [Line Items]
Number of outstanding awards granted | shares							0	0
Verizon Communications Inc. [Member]
Description of Business and Accounting Policies [Line Items]
Number of customers, exceeds 10% of total accounts receivable | Customer							1	1
Accounts receivable from one customer greater than 10%, percentage							23%	21%

Description of Business and A_5

Description of Business and Accounting Policies - Schedule of Reconciliation of Cash, Cash Equivalents and Restricted Cash (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Sep. 07, 2021	Dec. 31, 2020
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Cash and cash equivalents	$ 9.1	$ 9.4	$ 5.6
Restricted cash included in Other noncurrent assets	3.4	3.5	0.5
Cash, cash equivalents and restricted cash per Consolidated Statements of Cash Flows	$ 12.5	$ 12.9	$ 6.1	$ 11.2	$ 17.2

Recently Issued Accounting St_2

Recently Issued Accounting Standards - Narrative (Details) - ASU 2019-12 [Member] - ASU Adjustment [Member]	Jan. 01, 2021
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Change in Accounting Principle, Accounting Standards Update, Adopted [true false]	true
Change in Accounting Principle, Accounting Standards Update, Adoption Date	Jan. 01, 2021

Revenue - Narrative (Details)

Revenue - Narrative (Details) - USD ($) $ in Millions	2 Months Ended	12 Months Ended
	Sep. 07, 2021	Dec. 31, 2023	Dec. 31, 2022
Disaggregation Of Revenue [Line Items]
Payment terms for customers, lower range		30 days
Payment term for customers, upper range		120 days
Expected Revenue To Be Recognized		$ 192.5
Unearned revenue and customer deposits		72	$ 81.6
Other Current Liabilities [Member]
Disaggregation Of Revenue [Line Items]
Unearned revenue and customer deposits		4.1	0.2
Other Noncurrent Liabilities [Member]
Disaggregation Of Revenue [Line Items]
Contract liabilities, recognized, noncurrent		$ 79.5	0.2
Dedicated Fiber Agreement [Member]
Disaggregation Of Revenue [Line Items]
Indefeasible right of use of contract term	20 years	20 years
Revenue, Remaining Performance Obligation, Percentage		50%
Dedicated Fiber Agreement [Member] | Other Current Liabilities [Member]
Disaggregation Of Revenue [Line Items]
Unearned revenue and customer deposits		$ 2.1	1.4
Dedicated Fiber Agreement [Member] | Other Noncurrent Liabilities [Member]
Disaggregation Of Revenue [Line Items]
Contract liabilities, recognized, noncurrent		$ 56.5	$ 51.5
Minimum [Member]
Disaggregation Of Revenue [Line Items]
Customer contract term		1 year
SEA-US contract term		15 years
Indefeasible right of use of contract term		15 years
Maximum [Member]
Disaggregation Of Revenue [Line Items]
Customer contract term		5 years
SEA-US contract term		25 years
Indefeasible right of use of contract term		25 years
Indefeasible Right of Use, Maximum, in Years		30 years

Revenue - Schedule of Expected

Revenue - Schedule of Expected Revenue to be Recognized for Existing IRU Contracts (Details) $ in Millions	Dec. 31, 2023 USD ($)
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Expected Revenue To Be Recognized	$ 192.5
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2024-01-01
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Expected Revenue To Be Recognized	$ 21.4
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2025-01-01
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Expected Revenue To Be Recognized	$ 21.1
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2026-01-01
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Expected Revenue To Be Recognized	$ 21.7
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2027-01-01
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Expected Revenue To Be Recognized	$ 21.8
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2028-01-01
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Expected Revenue To Be Recognized	$ 9.5
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period	1 year
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2029-01-01
Revenue Remaining Performance Obligation Expected Timing Of Satisfaction [Line Items]
Expected Revenue To Be Recognized	$ 97
Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Period

Revenue - Schedule of Activity

Revenue - Schedule of Activity of Contract Assets (Details) - USD ($) $ in Millions	4 Months Ended	8 Months Ended	12 Months Ended
	Dec. 31, 2021	Sep. 07, 2021	Dec. 31, 2023	Dec. 31, 2022
Capitalized Contract Cost [Line Items]
Capitalized contract cost, net, beginning balance (remeasured upon Merger)	$ 0			$ 5
Capitalized contract cost, net, beginning balance	24.6	$ 26.8	$ 18.2
Capitalized contract cost, Additions	5.4	12.7	17.1	17.7
Capitalized contract cost, Amortization	(0.4)	(14.9)	(8.5)	(4.5)
Capitalized contract cost, net, ending Balance (remeasured upon Merger)	5	0
Capitalized contract cost, net, ending Balance		24.6	26.8	18.2
Fulfillment Costs [Member]
Capitalized Contract Cost [Line Items]
Capitalized contract cost, net, beginning balance (remeasured upon Merger)	0			1.4
Capitalized contract cost, net, beginning balance	5.4	7.4	5.2
Capitalized contract cost, Additions	1.5	5.1	4.2	4.8
Capitalized contract cost, Amortization	(0.1)	(7.1)	(2.2)	(1)
Capitalized contract cost, net, ending Balance (remeasured upon Merger)	1.4	0
Capitalized contract cost, net, ending Balance		5.4	7.2	5.2
Cost of Acquisition [Member]
Capitalized Contract Cost [Line Items]
Capitalized contract cost, net, beginning balance (remeasured upon Merger)	0			3.6
Capitalized contract cost, net, beginning balance	19.2	19.4	13
Capitalized contract cost, Additions	3.9	7.6	12.9	12.9
Capitalized contract cost, Amortization	(0.3)	(7.8)	(6.3)	(3.5)
Capitalized contract cost, net, ending Balance (remeasured upon Merger)	3.6	0
Capitalized contract cost, net, ending Balance		19.2	19.6	13
Operating Segments [Member] | Network [Member]
Capitalized Contract Cost [Line Items]
Capitalized contract cost, net, beginning balance (remeasured upon Merger)	0			4
Capitalized contract cost, net, beginning balance	17.1	19.3	14.5
Capitalized contract cost, Additions	4.2	9.7	14	13.5
Capitalized contract cost, Amortization	(0.2)	(11.9)	(6.3)	(3)
Capitalized contract cost, net, ending Balance (remeasured upon Merger)	4	0
Capitalized contract cost, net, ending Balance		17.1	22.2	14.5
Operating Segments [Member] | Network [Member] | Fulfillment Costs [Member]
Capitalized Contract Cost [Line Items]
Capitalized contract cost, net, beginning balance (remeasured upon Merger)	0			0.7
Capitalized contract cost, net, beginning balance	0.8	3.5	2.5
Capitalized contract cost, Additions	0.7	2.5	2.2	2.2
Capitalized contract cost, Amortization	0	(5.2)	(0.8)	(0.4)
Capitalized contract cost, net, ending Balance (remeasured upon Merger)	0.7	0
Capitalized contract cost, net, ending Balance		0.8	3.9	2.5
Operating Segments [Member] | Network [Member] | Cost of Acquisition [Member]
Capitalized Contract Cost [Line Items]
Capitalized contract cost, net, beginning balance (remeasured upon Merger)	0			3.3
Capitalized contract cost, net, beginning balance	16.3	15.8	12
Capitalized contract cost, Additions	3.5	7.2	11.8	11.3
Capitalized contract cost, Amortization	(0.2)	(6.7)	(5.5)	(2.6)
Capitalized contract cost, net, ending Balance (remeasured upon Merger)	3.3	0
Capitalized contract cost, net, ending Balance		16.3	18.3	12
Operating Segments [Member] | IT Services and Hardware [Member]
Capitalized Contract Cost [Line Items]
Capitalized contract cost, net, beginning balance (remeasured upon Merger)	0			1
Capitalized contract cost, net, beginning balance	7.5	7.5	3.7
Capitalized contract cost, Additions	1.2	3	3.1	4.2
Capitalized contract cost, Amortization	(0.2)	(3)	(2.2)	(1.5)
Capitalized contract cost, net, ending Balance (remeasured upon Merger)	1	0
Capitalized contract cost, net, ending Balance		7.5	4.6	3.7
Operating Segments [Member] | IT Services and Hardware [Member] | Fulfillment Costs [Member]
Capitalized Contract Cost [Line Items]
Capitalized contract cost, net, beginning balance (remeasured upon Merger)	0			0.7
Capitalized contract cost, net, beginning balance	4.6	3.9	2.7
Capitalized contract cost, Additions	0.8	2.6	2	2.6
Capitalized contract cost, Amortization	(0.1)	(1.9)	(1.4)	(0.6)
Capitalized contract cost, net, ending Balance (remeasured upon Merger)	0.7	0
Capitalized contract cost, net, ending Balance		4.6	3.3	2.7
Operating Segments [Member] | IT Services and Hardware [Member] | Cost of Acquisition [Member]
Capitalized Contract Cost [Line Items]
Capitalized contract cost, net, beginning balance (remeasured upon Merger)	0			0.3
Capitalized contract cost, net, beginning balance	2.9	3.6	1
Capitalized contract cost, Additions	0.4	0.4	1.1	1.6
Capitalized contract cost, Amortization	(0.1)	(1.1)	(0.8)	(0.9)
Capitalized contract cost, net, ending Balance (remeasured upon Merger)	$ 0.3	0
Capitalized contract cost, net, ending Balance		$ 2.9	$ 1.3	$ 1

Revenue - Schedule of Revenues

Revenue - Schedule of Revenues Disaggregation by Product and Service Lines (Details) - USD ($) $ in Millions	4 Months Ended	8 Months Ended	12 Months Ended
	Dec. 31, 2021	Sep. 07, 2021	Dec. 31, 2023	Dec. 31, 2022
Disaggregation Of Revenue [Line Items]
Revenues	$ 554.4	$ 1,138.7	$ 1,817.3	$ 1,796
Operating Segments [Member] | Network [Member]
Disaggregation Of Revenue [Line Items]
Revenues	303.8	664.2	1,002.9	994.3
Operating Segments [Member] | Network [Member] | Data [Member]
Disaggregation Of Revenue [Line Items]
Revenues	156.2	334.6	557.1	523.3
Operating Segments [Member] | Network [Member] | Video [Member]
Disaggregation Of Revenue [Line Items]
Revenues	60.4	131.8	193.7	193.6
Operating Segments [Member] | Network [Member] | Voice [Member]
Disaggregation Of Revenue [Line Items]
Revenues	76.4	177.3	218.6	230.8
Operating Segments [Member] | Network [Member] | Other [Member]
Disaggregation Of Revenue [Line Items]
Revenues	10.8	20.5	33.5	46.6
Operating Segments [Member] | IT Services and Hardware [Member]
Disaggregation Of Revenue [Line Items]
Revenues	259.3	492.4	838.7	827.9
Operating Segments [Member] | IT Services and Hardware [Member] | Consulting [Member]
Disaggregation Of Revenue [Line Items]
Revenues	105.5	193.6	342	339.4
Operating Segments [Member] | IT Services and Hardware [Member] | Cloud [Member]
Disaggregation Of Revenue [Line Items]
Revenues	31.9	66.4	118.5	101.7
Operating Segments [Member] | IT Services and Hardware [Member] | Communications [Member]
Disaggregation Of Revenue [Line Items]
Revenues	68.5	149.1	224.2	222.3
Operating Segments [Member] | IT Services and Hardware [Member] | Infrastructure Solutions [Member]
Disaggregation Of Revenue [Line Items]
Revenues	53.4	83.3	154	164.5
Intersegment Eliminations [Member]
Disaggregation Of Revenue [Line Items]
Revenues	(8.7)	(17.9)	(24.3)	(26.2)
Intersegment Eliminations [Member] | Network [Member]
Disaggregation Of Revenue [Line Items]
Revenues	6.5	13.1	16.4	19.3
Intersegment Eliminations [Member] | IT Services and Hardware [Member]
Disaggregation Of Revenue [Line Items]
Revenues	$ 2.2	$ 4.8	$ 7.9	$ 6.9

Revenue - Schedule of Revenue_2

Revenue - Schedule of Revenues Disaggregation by Contract Type (Details) - USD ($) $ in Millions	4 Months Ended	8 Months Ended	12 Months Ended
	Dec. 31, 2021	Sep. 07, 2021	Dec. 31, 2023	Dec. 31, 2022
Disaggregation Of Revenue [Line Items]
Revenues	$ 554.4	$ 1,138.7	$ 1,817.3	$ 1,796
Transferred at Point in Time [Member]
Disaggregation Of Revenue [Line Items]
Revenues	67.4	105.9	201.7	194.5
Transferred over Time [Member]
Disaggregation Of Revenue [Line Items]
Revenues	487	1,032.8	1,615.6	1,601.5
Intersegment Eliminations [Member]
Disaggregation Of Revenue [Line Items]
Revenues	(8.7)	(17.9)	(24.3)	(26.2)
Network [Member] | Operating Segments [Member]
Disaggregation Of Revenue [Line Items]
Revenues	303.8	664.2	1,002.9	994.3
Network [Member] | Operating Segments [Member] | Transferred at Point in Time [Member]
Disaggregation Of Revenue [Line Items]
Revenues	8	15.8	26.3	27.3
Network [Member] | Operating Segments [Member] | Transferred over Time [Member]
Disaggregation Of Revenue [Line Items]
Revenues	289.3	635.3	960.2	947.7
Network [Member] | Intersegment Eliminations [Member]
Disaggregation Of Revenue [Line Items]
Revenues	6.5	13.1	16.4	19.3
IT Services and Hardware [Member] | Operating Segments [Member]
Disaggregation Of Revenue [Line Items]
Revenues	259.3	492.4	838.7	827.9
IT Services and Hardware [Member] | Operating Segments [Member] | Transferred at Point in Time [Member]
Disaggregation Of Revenue [Line Items]
Revenues	59.4	90.1	175.4	167.2
IT Services and Hardware [Member] | Operating Segments [Member] | Transferred over Time [Member]
Disaggregation Of Revenue [Line Items]
Revenues	197.7	397.5	655.4	653.8
IT Services and Hardware [Member] | Intersegment Eliminations [Member]
Disaggregation Of Revenue [Line Items]
Revenues	$ 2.2	$ 4.8	$ 7.9	$ 6.9

Mergers and Acquisitions - Narr

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								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
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%
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

Mergers and Acquisitions - Sche

Mergers and Acquisitions - Schedule of Consideration (Details) - Cincinnati Bell Inc. [Member] $ in Millions	Sep. 07, 2021 USD ($)
Business Acquisition [Line Items]
Cash consideration for Cincinnati Bell Inc. stock	$ 807.3
Cash consideration for preferred stock	155.2
Cash consideration for debt repayment	658.2
Total purchase price	$ 1,620.7

Mergers and Acquisitions - Purc

Mergers and Acquisitions - Purchase Price Allocation (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	May 02, 2022	Dec. 31, 2021	Sep. 07, 2021
Assets acquired
Goodwill	$ 721	$ 723.5		$ 646.3
Cincinnati Bell Inc. [Member]
Assets acquired
Cash					$ 11.2
Receivables					318.5
Inventory, materials and supplies					56.4
Prepaid expenses					5.6
Other current assets					40.5
Property, plant and equipment					1,950.8
Operating lease right-of-use assets					42.3
Goodwill					651
Intangible assets					969.6
Deferred tax assets					6.9
Other noncurrent assets					20.2
Total assets acquired					4,073
Liabilities assumed
Current portion of long-term debt					11.8
Accounts payable					381.1
Unearned revenue and customer deposits					51.2
Accrued taxes					24.6
Accrued interest					19.4
Accrued payroll and benefits					49.3
Other current liabilities					75
Long-term debt, less current portion					1,378
Operating lease liabilities					38.6
Pension and postretirement benefit obligations					151.6
Pole license agreement obligation					46.7
Deferred income tax liability					153.6
Other noncurrent liabilities					71.4
Total liabilities assumed					2,452.3
Net assets acquired					$ 1,620.7
Agile IWG Holdings, LLC [Member]
Assets acquired
Receivables and other current assets			$ 1.8
Property, plant and equipment			10.2
Operating lease right-of-use assets			27.8
Goodwill			35
Intangible assets			19.4
Total assets acquired			94.2
Liabilities assumed
Accrued expenses and other current liabilities			2.5
Other noncurrent liabilities			0.5
Operating lease liabilities			25.7
Total liabilities assumed			28.7
Net assets acquired			$ 65.5

Mergers and Acquisitions - Fair

Mergers and Acquisitions - Fair Values of Identifiable Intangible Assets Acquired (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	May 02, 2022	Sep. 07, 2021
Business Acquisition [Line Items]
Fair Value	$ 979.4	$ 977.6
Fair Value	993.3	991.3
Cincinnati Bell Inc. [Member]
Business Acquisition [Line Items]
Fair Value				$ 969.6
Agile IWG Holdings, LLC [Member]
Business Acquisition [Line Items]
Fair Value			$ 19.4
Fair Value			19.4
Customer Relationships [Member]
Business Acquisition [Line Items]
Fair Value	$ 863.5	862.1
Useful Lives	15 years
Customer Relationships [Member] | Cincinnati Bell Inc. [Member]
Business Acquisition [Line Items]
Fair Value				$ 850
Useful Lives				15 years
Customer Relationships [Member] | Agile IWG Holdings, LLC [Member]
Business Acquisition [Line Items]
Fair Value			$ 16
Useful Lives			15 years
Trade Names [Member]
Business Acquisition [Line Items]
Fair Value	$ 109.8	109.5
Trade Names [Member] | Minimum [Member]
Business Acquisition [Line Items]
Useful Lives	3 years
Trade Names [Member] | Maximum [Member]
Business Acquisition [Line Items]
Useful Lives	10 years
Trade Names [Member] | Cincinnati Bell Inc. [Member]
Business Acquisition [Line Items]
Fair Value				$ 108
Trade Names [Member] | Cincinnati Bell Inc. [Member] | Minimum [Member]
Business Acquisition [Line Items]
Useful Lives				3 years
Trade Names [Member] | Cincinnati Bell Inc. [Member] | Maximum [Member]
Business Acquisition [Line Items]
Useful Lives				10 years
Trade Names [Member] | Agile IWG Holdings, LLC [Member]
Business Acquisition [Line Items]
Fair Value			$ 2.3
Useful Lives			10 years
Technology [Member]
Business Acquisition [Line Items]
Fair Value	$ 6.1	$ 6
Useful Lives	7 years
Technology [Member] | Cincinnati Bell Inc. [Member]
Business Acquisition [Line Items]
Fair Value				$ 5
Useful Lives				7 years
Technology [Member] | Agile IWG Holdings, LLC [Member]
Business Acquisition [Line Items]
Fair Value			$ 1.1
Useful Lives			7 years
FCC Licenses and Spectrum Usage Rights [Member] | Cincinnati Bell Inc. [Member]
Business Acquisition [Line Items]
Fair Value				$ 6.6

Property, Plant and Equipment -

Property, Plant and Equipment - Schedule of Property, Plant and Equipment (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Property, Plant and Equipment [Line Items]
Land and rights-of-way	$ 133.5	$ 132.8
Buildings and leasehold improvements	223.1	201.3
Network equipment	2,516.1	1,970.5
Office software, furniture, fixtures and vehicles	175.3	135.2
Construction in process	152.1	112.2
Gross value	3,200.1	2,552
Accumulated depreciation	(741)	(435.2)
Property, plant and equipment, net	$ 2,459.1	$ 2,116.8
Land [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	20 years
Land [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant, and Equipment, Useful Life, Term, Description [Extensible Enumeration]	Property, Plant and Equipment, Useful Life
Building and Building Improvements [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	5 years
Building and Building Improvements [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	40 years
Equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	2 years
Equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	50 years
Furniture and Fixtures [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	2 years
Furniture and Fixtures [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life	14 years

Property, Plant and Equipment_2

Property, Plant and Equipment - Narrative (Details) - USD ($)	3 Months Ended	4 Months Ended	8 Months Ended	12 Months Ended		13 Months Ended
	Sep. 30, 2022	Dec. 31, 2021	Sep. 07, 2021	Dec. 31, 2023	Dec. 31, 2022	Sep. 30, 2022
Property, Plant and Equipment [Line Items]
Depreciation and amortization		$ 144,600,000	$ 194,900,000	$ 449,600,000	$ 497,100,000
Property, plant and equipment, net				2,459,100,000	2,116,800,000
Deferred income tax liabilities				54,200,000	98,200,000
Income tax benefit		(7,300,000)	(16,900,000)	(34,300,000)	(35,100,000)
Depreciation		$ 103,200,000	$ 185,000,000	$ 334,900,000	$ 375,700,000
Depreciation associated with cost of providing services		84%	85%	88%	91%
Asset impairment losses	$ 2,700,000	$ 0	$ 0	$ 0	$ 2,700,000
Adjustment [Member]
Property, Plant and Equipment [Line Items]
Depreciation and amortization		$ 4,000,000				$ 10,500,000
Equipment [Member] | Minimum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life, Majority				7 years
Property, Plant and Equipment, Useful Life				2 years
Equipment [Member] | Maximum [Member]
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment, Useful Life, Majority				22 years
Property, Plant and Equipment, Useful Life				50 years

Goodwill and Intangible Asset_2

Goodwill and Intangible Assets - Schedule of Goodwill (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 723.5	$ 646.3
Adjustments to prior year Merger/acquisition of Agile	(4.4)	4.7
Acquisition of Agile/ OTT	1.1	39.4
Adjustments to postretirement and other benefit obligations (Note 11)		35
Currency translations	0.8	(1.9)
Goodwill, ending balance	721	723.5
It Services And Hardware [Member] | Operating Segments [Member]
Goodwill [Roll Forward]
Goodwill, beginning balance	177.6	157.4
Adjustments to prior year Merger/acquisition of Agile	0	2.5
Acquisition of Agile/ OTT	0	0
Adjustments to postretirement and other benefit obligations (Note 11)		19.6
Currency translations	0.8	(1.9)
Goodwill, ending balance	178.4	177.6
Network [Member] | Operating Segments [Member]
Goodwill [Roll Forward]
Goodwill, beginning balance	545.9	488.9
Adjustments to prior year Merger/acquisition of Agile	(4.4)	2.2
Acquisition of Agile/ OTT	1.1	39.4
Adjustments to postretirement and other benefit obligations (Note 11)		15.4
Currency translations	0	0
Goodwill, ending balance	$ 542.6	$ 545.9

Goodwill and Intangible Asset_3

Goodwill and Intangible Assets - Narrative (Details) - USD ($)	4 Months Ended	8 Months Ended	12 Months Ended
	Dec. 31, 2021	Sep. 07, 2021	Dec. 31, 2023	Dec. 31, 2022	May 02, 2022
Goodwill [Line Items]
Goodwill acquired			$ 1,100,000	$ 39,400,000
Impairment losses recognized in goodwill	$ 0	$ 0	0	0
Finite-lived intangible assets			979,400,000	977,600,000
Amortization of finite-lived intangible assets	41,400,000	9,900,000	114,700,000	121,400,000
Impairment losses on intangible assets	$ 0	$ 0	0	$ 0
Agile IWG Holdings, LLC [Member]
Goodwill [Line Items]
Goodwill acquired			4,400,000
Finite-lived intangible assets					$ 19,400,000
Ohio Transparent Telecom Inc. [Member]
Goodwill [Line Items]
Goodwill acquired			$ 1,100,000

Goodwill and Intangible Asset_4

Goodwill and Intangible Assets - Schedule of Intangible Assets (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Finite Lived Intangible Assets [Line Items]
Intangible assets subject to amortization, gross carrying amount	$ 979.4	$ 977.6
Accumulated amortization	(277.4)	(162.2)
Intangible assets subject to amortization, net amount	702	815.4
Total intangible assets, gross carrying amount	993.3	991.3
Intangible assets, net amount	715.9	829.1
FCC Licenses and Spectrum Usage Rights [Member]
Finite Lived Intangible Assets [Line Items]
Intangible assets not subject to amortization	7.1	6.9
Perpetual Licenses [Member]
Finite Lived Intangible Assets [Line Items]
Intangible assets not subject to amortization	6.8	6.8
Customer Relationships [Member]
Finite Lived Intangible Assets [Line Items]
Intangible assets subject to amortization, gross carrying amount	863.5	862.1
Accumulated amortization	(239.3)	(140.7)
Intangible assets subject to amortization, net amount	624.2	721.4
Trade Names [Member]
Finite Lived Intangible Assets [Line Items]
Intangible assets subject to amortization, gross carrying amount	109.8	109.5
Accumulated amortization	(36.2)	(20.5)
Intangible assets subject to amortization, net amount	73.6	89
Technology [Member]
Finite Lived Intangible Assets [Line Items]
Intangible assets subject to amortization, gross carrying amount	6.1	6
Accumulated amortization	(1.9)	(1)
Intangible assets subject to amortization, net amount	$ 4.2	$ 5

Goodwill and Intangible Asset_5

Goodwill and Intangible Assets - Schedule of Estimated Useful Lives for Finite-Lived Intangible Assets (Details)	Dec. 31, 2023
Customer Relationships [Member]
Finite Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	15 years
Trade Names [Member] | Minimum [Member]
Finite Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	3 years
Trade Names [Member] | Maximum [Member]
Finite Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	10 years
Technology [Member]
Finite Lived Intangible Assets [Line Items]
Finite-Lived Intangible Asset, Useful Life	7 years

Goodwill and Intangible Asset_6

Goodwill and Intangible Assets - Schedule of Estimated Amortization Expense (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Finite-Lived Intangible Assets, Amortization Expense, Maturity Schedule [Abstract]
2024	$ 105.6
2025	93.8
2026	86.6
2027	79.4
2028	72
Thereafter	264.6
Intangible assets subject to amortization, net amount	$ 702	$ 815.4

Debt and Other Financing Arra_3

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
Other Financing Arrangements, Current Portion		0.2	0.3
Finance lease liabilities, current		12.9	9.9
Receivables Facility		0	186.9
Long-term debt, less current portion		1,836.4	1,656
Other Financing Arrangements, Non-Current Portion		0.6	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
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Corporate Credit Agreement		152.5	223
Term B-1 Loans [Member]
Debt Instrument [Line Items]
Current portion of long-term debt		5	5
Long-term debt, less current portion		485	490
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
Term B 3 Loan [Member]
Debt Instrument [Line Items]
Current portion of long-term debt		2	0
Long-term debt, less current portion		197	0
7.25% Notes due 2023 [Member]
Debt Instrument [Line Items]
Notes, Current	[1]	0	22.8
Network Receivables Facility [Member]
Debt Instrument [Line Items]
Receivables Facility		36.1	0
CBTS Receivable Facility [Member]
Debt Instrument [Line Items]
Receivables Facility		209.9	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.

Debt and Other Financing Arra_4

Debt and Other Financing Arrangements - Schedule of Debt (Parenthetical) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Jun. 30, 2023	Dec. 31, 2021
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage		7.25%		7.25%
7.25% Notes due 2023 [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	7.25%	7.25%	7.25%
7.25% Notes due 2023 [Member] | Merger Agreement [Member]
Debt Instrument [Line Items]
Unamortized fair value adjustments		$ 0.5
Various Cincinnati Bell Telephone Notes [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	6.30%
Various Cincinnati Bell Telephone Notes [Member] | Merger Agreement [Member]
Debt Instrument [Line Items]
Unamortized fair value adjustments	$ 7.2	$ 8.5

Debt and Other Financing Arra_5

Debt and Other Financing Arrangements - Credit Agreement - Narrative (Details) - USD ($)			1 Months Ended	3 Months Ended	4 Months Ended	8 Months Ended	12 Months Ended
	May 03, 2023	Sep. 07, 2021	Nov. 30, 2021	Dec. 31, 2021	Dec. 31, 2021	Sep. 07, 2021	Dec. 31, 2023	Dec. 31, 2022	Jun. 30, 2023
Debt Instrument [Line Items]
Credit agreement term		5 years
Senior secured revolving credit facility		$ 275,000,000				$ 275,000,000
Payments of debt issuance costs					$ 55,900,000	800,000	$ 4,000,000	$ 700,000
Debt instrument, interest rate, stated percentage				7.25%	7.25%			7.25%
Line of Credit Facility, Unused Capacity, Commitment Fee Percentage			0.50%
Line of Credit Facility, Commitment Fee Percentage			0.375%
Line Of Credit Facility, Fronting Fee Percentage			0.125%
Loss on extinguishment of debt				$ (2,100,000)	$ (2,100,000)	(10,700,000)	$ 0	$ 0
Revolving Credit Facility Due 2026 [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate			2%
Debt instrument, interest rate during period			3%
Maximum [Member]
Debt Instrument [Line Items]
Leverage Ratio, threshold							3.25%
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | Revolving Credit Facility Due 2026 [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate			1%
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | Minimum [Member] | Revolving Credit Facility Due 2026 [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate			2.75%
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | Maximum [Member] | Revolving Credit Facility Due 2026 [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate			3%
One Month [Member] | Revolving Credit Facility Due 2026 [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage			0.10%
Three Months | Revolving Credit Facility Due 2026 [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate			0.15%
Six Months [Member] | Revolving Credit Facility Due 2026 [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate			0.25%
Base Rate Loans [Member] | Minimum [Member] | Revolving Credit Facility Due 2026 [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate			1.75%
Base Rate Loans [Member] | Maximum [Member] | Revolving Credit Facility Due 2026 [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate			2%
Bridge Loan [Member]
Debt Instrument [Line Items]
Senior secured revolving credit facility		$ 10,000,000				10,000,000
Term B-1 Loans [Member]
Debt Instrument [Line Items]
Credit agreement term		7 years
Senior secured term loan facility		$ 150,000,000	$ 500,000,000			150,000,000
Debt instrument original maturity date		2028-09
Payments of debt issuance costs		$ 32,000,000	4,300,000
Incremental Term B-1 loans increase amount			$ 350,000,000
Debt instrument, interest rate, stated percentage			0.50%
Debt instrument updated maturity date			2028-11
Debt Instrument, Basis Spread on Variable Rate			2.50%
Debt instrument, interest rate during period			3.50%
Term B-1 Loans [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate			1%
Debt instrument variable rate floor			0.25%
Term B-1 Loans [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | Minimum [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate			3.25%
Term B-1 Loans [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate			3.50%
Term B-1 Loans [Member] | One Month [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage			0.10%
Term B-1 Loans [Member] | Three Months
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate			0.15%
Term B-1 Loans [Member] | Six Months [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate			0.25%
Term B-1 Loans [Member] | Base Rate Loans [Member] | Minimum [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate			2.25%
Term B-1 Loans [Member] | Base Rate Loans [Member] | Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate			2.50%
Term B-2 Loans [Member]
Debt Instrument [Line Items]
Senior secured term loan facility			$ 650,000,000
Debt instrument expiration date			2028-11
Payments of debt issuance costs			$ 9,700,000
Debt instrument, interest rate, stated percentage			0.50%
Debt Instrument, Basis Spread on Variable Rate			2.25%
Debt instrument, interest rate during period			3.25%
Term B-2 Loans [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate			1%
Debt instrument variable rate floor			0.50%
Term B-2 Loans [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | Minimum [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate			3%
Term B-2 Loans [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate			3.25%
Term B-2 Loans [Member] | One Month [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage			0.10%
Term B-2 Loans [Member] | Three Months
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate			0.15%
Term B-2 Loans [Member] | Six Months [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate			0.25%
Term B-2 Loans [Member] | Base Rate Loans [Member] | Minimum [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate			2%
Term B-2 Loans [Member] | Base Rate Loans [Member] | Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate			2.25%
Term B-3 Loans [Member]
Debt Instrument [Line Items]
Senior secured term loan facility	$ 200,000,000
Debt instrument expiration date	2028-11
Payments of debt issuance costs	$ 1,900,000
Debt instrument, interest rate, stated percentage	0.50%
Debt Instrument, Basis Spread on Variable Rate	3%
Debt instrument, interest rate during period	4%
Term B-3 Loans [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1%
Debt instrument variable rate floor	0%
Term B-3 Loans [Member] | One Month [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage	0.10%
Term B-3 Loans [Member] | Three Months
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.15%
Term B-3 Loans [Member] | Six Months [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	0.25%
7.25% Notes due 2023 [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage							7.25%	7.25%	7.25%
Senior Notes due 2024 [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage			7%
Senior Notes due 2025 [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage			8%
Floor [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | Revolving Credit Facility Due 2026 [Member]
Debt Instrument [Line Items]
Debt instrument variable rate floor			0%
Floor [Member] | Base Rate Loans [Member]
Debt Instrument [Line Items]
Debt instrument variable rate floor			0%
Standby Letters of Credit [Member]
Debt Instrument [Line Items]
Senior secured revolving credit facility		$ 40,000,000				$ 40,000,000
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Debt instrument expiration date		2026-09
Payments of debt issuance costs		$ 6,100,000	$ 1,300,000
Upsize to the revolving credit facility			125,000,000
Total commitments under the Revolving Credit Facility increased amount			$ 400,000,000
Borrowings under the revolving credit facility							$ 152,500,000	$ 223,000,000
Line of credit facility, remaining borrowing capacity							$ 247,500,000

Debt and Other Financing Arra_6

Debt and Other Financing Arrangements - Accounts Receivable Securitization Facility - Narrative (Details)	1 Months Ended	3 Months Ended	12 Months Ended
	Nov. 30, 2021	Mar. 31, 2023 USD ($) Facility	Dec. 31, 2023 USD ($)	Dec. 31, 2022 USD ($)
Debt Instrument [Line Items]
Receivables facility maximum borrowing capacity		$ 280,000,000
Receivables Facility			$ 0	$ 186,900,000
Receivables Facility Amount Outstanding			0	186,900,000
Letters of Credit Outstanding, Amount			17,200,000
Accounts receivable sold			3,500,000	$ 56,800,000
Number of receivable facility | Facility		2
Network Receivables Facility [Member]
Debt Instrument [Line Items]
Receivables facility maximum borrowing capacity		$ 55,000,000	55,000,000
Receivables facility renewal date		2025-01
Receivables facility termination date		2026-01
Receivables Facility Maximum Borrowing Availability			54,800,000
Receivables Facility			36,100,000
Receivables Facility Amount Outstanding			36,100,000
Letters of Credit Outstanding, Amount			16,700,000
Receivables Facility Remaining Borrowing Capacity			$ 2,000,000
Debt instrument, interest rate during period			6.70%
CBTS Receivable Facility [Member]
Debt Instrument [Line Items]
Receivables facility maximum borrowing capacity		$ 225,000,000	$ 225,000,000
Receivables facility renewal date		2025-01
Receivables facility termination date		2026-01
Receivables Facility Maximum Borrowing Availability			219,800,000
Receivables Facility			209,900,000
Receivables Facility Amount Outstanding			209,900,000
Letters of Credit Outstanding, Amount			500,000
Receivables Facility Remaining Borrowing Capacity			$ 9,400,000
Debt instrument, interest rate during period			6.60%
Receivables Facilities [Member] | Canadian Overnight Repo Rate Average | CBTS Receivable Facility [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate			1.60%
Receivables Facilities [Member] | Canadian Dollar Offer Rate | CBTS Receivable Facility [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate			1.40%
Receivables Facilities [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | Network Receivables Facility And CBTS Receivables Facility [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate			1.40%
Term B-1 Loans [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	2.50%
Debt instrument, interest rate during period	3.50%
Term B-1 Loans [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	1%
Term B-1 Loans [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | Minimum [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	3.25%
Term B-1 Loans [Member] | Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | Maximum [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate	3.50%

Debt and Other Financing Arra_7

Debt and Other Financing Arrangements - Notes due - Narrative (Details) - USD ($) $ in Millions	4 Months Ended	8 Months Ended	12 Months Ended
	Dec. 31, 2021	Sep. 07, 2021	Dec. 31, 2023	Dec. 31, 2022	Jun. 30, 2023
Debt Instrument [Line Items]
Proceeds from issuance of long-term debt	$ 1,145	$ 23	$ 211.4	$ 2.7
Debt instrument, interest rate, stated percentage	7.25%			7.25%
7.25% Notes due 2023 [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage			7.25%	7.25%	7.25%

Debt and Other Financing Arra_8

Debt and Other Financing Arrangements - Cincinnati Bell Telephone Notes - Narrative (Details) - USD ($) $ in Millions	1 Months Ended	12 Months Ended
	Nov. 30, 1998	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Nov. 30, 2021
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage			7.25%	7.25%
Cincinnati Bell Telephone Senior Notes due 2028 [Member]
Debt Instrument [Line Items]
Proceeds from Issuance of Unsecured Debt	$ 150
Debt instrument maturity period		2028
Debt instrument, interest rate, stated percentage		6.30%
Debt Instrument, Redemption Price, Percentage		100%
Customary Events of Default Amount for Existing Debt Instruments		$ 20
Term B-1 Loans [Member]
Debt Instrument [Line Items]
Debt instrument, interest rate, stated percentage					0.50%

Debt and Other Financing Arra_9

Debt and Other Financing Arrangements - Paniolo Fiber Assets Financing Arrangement - Narrative (Details) - USD ($)		1 Months Ended	3 Months Ended
	Sep. 07, 2021	Nov. 30, 2021	Sep. 30, 2023	Sep. 30, 2021
Debt Instrument [Line Items]
Credit agreement term	5 years
Senior secured revolving credit facility	$ 275,000,000
Term B-1 Loans [Member]
Debt Instrument [Line Items]
Credit agreement term	7 years
Debt Instrument, Basis Spread on Variable Rate		2.50%
Paniolo Acquisition [Member]
Debt Instrument [Line Items]
Credit agreement term				5 years
Senior secured revolving credit facility				$ 23,000,000
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | Term B-1 Loans [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate		1%
Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate | Paniolo Acquisition [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate			0.10%
Adjusted Term SOFR [Member] | Paniolo Acquisition [Member]
Debt Instrument [Line Items]
Debt Instrument, Basis Spread on Variable Rate			3%

Debt and Other Financing Arr_10

Debt and Other Financing Arrangements -Digital Access Ohio Advance - Narrative (Details) - Digital Access Ohio Advance [Member] - USD ($)	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Borrowings	$ 6,300,000	$ 900,000
Debt instrument, maturity date	Jul. 31, 2033
Debt Instrument, Basis Spread on Variable Rate	1%
Maximum [Member]
Debt Instrument [Line Items]
Borrowings	$ 20,000,000

Debt and Other Financing Arr_11

Debt and Other Financing Arrangements - Debt Maturity Schedule (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Debt Disclosure [Abstract]
2024	$ 14
2025	14
2026	432.9
2027	13.5
2028	1,359.9
Thereafter	6.3
Long-Term Debt, Excluding Finance Leases, Gross	1,840.6
Net unamortized (discount) premium	(5.5)	$ (4.3)
Unamortized note issuance costs	(34.6)	$ (38.8)
Total debt	1,800.5
2024	0.2
2025	0.2
2026	0.2
2027	0.1
2028	0.1
Thereafter	0
Other Financing Arrangements, Gross	0.8
Other Financing Arrangement, Net unamortized discount	0
Other Financing Arrangements, Unamortized note issuance costs	0
Other Financing Arrangements, Net	$ 0.8

Debt and Other Financing Arr_12

Debt and Other Financing Arrangements - Debt Maturity Schedule, Deferred Financing Costs, Debt Covenants and Extinguished Notes - Narrative (Details) - USD ($) $ in Millions			1 Months Ended	3 Months Ended		4 Months Ended	8 Months Ended	12 Months Ended
	May 03, 2023	Sep. 07, 2021	Nov. 30, 2021	Jun. 30, 2023	Dec. 31, 2021	Dec. 31, 2021	Sep. 07, 2021	Dec. 31, 2023	Dec. 31, 2022
Debt Instrument [Line Items]
Payments of debt issuance costs						$ 55.9	$ 0.8	$ 4	$ 0.7
Write off of Deferred Debt Issuance Cost						3.6
Unamortized note issuance costs								34.6	38.8
Amortization of Debt Issuance Costs						$ 2	4.2	$ 8.4	$ 7.1
Senior secured net leverage ratio maximum allowed under revolving credit facility								5.75%
Debt instrument, interest rate, stated percentage					7.25%	7.25%			7.25%
Loss on extinguishment of debt, net					$ 2.1	$ 2.1	10.7	$ 0	$ 0
Redemption description								In the fourth quarter of 2021, the Company redeemed all of the $650 million of 7% Senior Notes due 2024 and $350 million of 8% Senior Notes due 2025 at redemption prices of 101.750% and 104.000%, respectively, primarily using proceeds from the Incremental Term B-1 Loans Increase and the Term B-2 Loans. As a result, the Company recorded a loss on extinguishment of debt of $2.1 million in the fourth quarter of 2021.
7% Senior Notes due 2024 [Member]
Debt Instrument [Line Items]
Debt redeemed					$ 650
Debt instrument, interest rate, stated percentage					7%	7%
Debt Instrument, Redemption Price, Percentage					101.75%
8% Senior Notes due 2025 [Member]
Debt Instrument [Line Items]
Debt redeemed					$ 350
Debt instrument, interest rate, stated percentage					8%	8%
Debt Instrument, Redemption Price, Percentage					104%
Other Noncurrent Assets [Member]
Debt Instrument [Line Items]
Unamortized note issuance costs								$ 4.9	5.3
Revolving Credit Facility [Member]
Debt Instrument [Line Items]
Payments of debt issuance costs		$ 6.1	$ 1.3
Write off of Deferred Debt Issuance Cost		1.2
Network Receivables Facility [Member]
Debt Instrument [Line Items]
Deferred financing costs								0.4
CBTS Receivable Facility [Member]
Debt Instrument [Line Items]
Deferred financing costs								1.7
Consent Solicitation Fees Revolving Credit Facility and Receivables Facility [Member]
Debt Instrument [Line Items]
Deferred financing costs		1					$ 1
Credit Agreement and the Amendment No. 1 to the Credit Agreement [Member]
Debt Instrument [Line Items]
Payments of debt issuance costs						$ 53.4
Term B-3 Loans [Member]
Debt Instrument [Line Items]
Deferred financing costs								$ 1.9
Payments of debt issuance costs	$ 1.9
Debt instrument, interest rate, stated percentage	0.50%
2024 Notes and 2025 Notes [Member]
Debt Instrument [Line Items]
Payments of debt issuance costs						$ 3.9
Tranche B Term Loan due 2024 [Member]
Debt Instrument [Line Items]
Write off of Deferred Debt Issuance Cost		$ 6.1
Revolving Credit Facility Due 2026 [Member]
Debt Instrument [Line Items]
Utilization threshold for maximum senior secured net leverage ratio								35%
Amending Receivables Facility [Member]
Debt Instrument [Line Items]
Deferred financing costs									$ 0.1
7.25% Notes due 2023 [Member]
Debt Instrument [Line Items]
Repayment of notes				$ 22.3
Debt instrument, interest rate, stated percentage				7.25%				7.25%	7.25%

Leases - Narratives (Details)

Leases - Narratives (Details) - USD ($) $ in Millions		4 Months Ended	8 Months Ended	12 Months Ended
	Aug. 31, 2021	Dec. 31, 2021	Sep. 07, 2021	Dec. 31, 2023	Dec. 31, 2022	Sep. 01, 2021
Lessee, Lease, Description [Line Items]
Lease expiration period				2071
Lessee, operating lease, existence of option to extend				true
Lessee, finance lease, renewal term				15 years
Additional future payments on operating leases not yet commenced				$ 1
Sale leaseback transaction sale price	$ 9.1
Net proceeds from sale-leaseback transaction after transaction cost	6.6
Gain (loss) on sale	$ 2.8
Operating lease right-of-use assets				$ 78.3	$ 73.1
Lessor lease expiration period				2048
Lease income		$ 0.9	$ 2	$ 3.4	$ 3
Additional future payments on finance leases not yet commenced				$ 0.9
Finance lease term				5 years
Leaseback Agreement [Member]
Lessee, Lease, Description [Line Items]
Operating lease right-of-use assets						$ 7.7
Operating lease right of use liability						$ 7.7
Minimum [Member]
Lessee, Lease, Description [Line Items]
Operating lease term				3 years
Operating lease term				1 year
Maximum [Member]
Lessee, Lease, Description [Line Items]
Operating lease term				33 years
Operating lease term				30 years
Real Estate | Minimum [Member]
Lessee, Lease, Description [Line Items]
Lessee operating and finance lease term of contract				1 year
Real Estate | Maximum [Member]
Lessee, Lease, Description [Line Items]
Lessee operating and finance lease term of contract				55 years
Equipment [Member] | Minimum [Member]
Lessee, Lease, Description [Line Items]
Lessee operating and finance lease term of contract				3 years
Equipment [Member] | Maximum [Member]
Lessee, Lease, Description [Line Items]
Lessee operating and finance lease term of contract				10 years
Cell Towers [Member] | Minimum [Member]
Lessee, Lease, Description [Line Items]
Lessee operating and finance lease term of contract				5 years
Cell Towers [Member] | Maximum [Member]
Lessee, Lease, Description [Line Items]
Lessee operating and finance lease term of contract				21 years
Designated Space on Third Party Cell Towers [Member] | Minimum [Member]
Lessee, Lease, Description [Line Items]
Lessee operating and finance lease term of contract				5 years
Designated Space on Third Party Cell Towers [Member] | Maximum [Member]
Lessee, Lease, Description [Line Items]
Lessee operating and finance lease term of contract				55 years
Vehicles [Member]
Lessee, Lease, Description [Line Items]
Lessee operating and finance lease term of contract				5 years

Leases - Schedule of Supplement

Leases - Schedule of Supplemental Balance Sheet Information Related to Leases (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Leases [Abstract]
Operating lease assets, net of amortization	$ 78.3	$ 73.1
Finance lease assets, net of amortization	$ 21.9	$ 16.5
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Other noncurrent assets	Other noncurrent assets
Current operating lease liabilities	$ 12.8	$ 12.7
Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Other current liabilities	Other current liabilities
Noncurrent operating lease liabilities	$ 72	$ 66.1
Total operating lease liabilities	84.8	78.8
Current finance lease liabilities	$ 12.9	$ 9.9
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Other current liabilities	Other current liabilities
Noncurrent finance lease liabilities	$ 42.1	$ 43.1
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Long-term debt, less current portion	Long-term debt, less current portion
Total finance lease liabilities	$ 55	$ 53

Leases - Components of Lease Ex

Leases - Components of Lease Expense (Details) - USD ($) $ in Millions	4 Months Ended	8 Months Ended	12 Months Ended
	Dec. 31, 2021	Sep. 07, 2021	Dec. 31, 2023	Dec. 31, 2022
Leases [Abstract]
Operating lease cost	$ 4.3	$ 8.1	$ 16	$ 14.6
Short-term lease cost	0.1	0.2	0.6	0.3
Variable lease cost	1.1	2.3	3.5	3.6
Finance lease cost:
Depreciation on leased assets	2	4.5	8	4.7
Interest on lease liabilities	1.2	2.9	3.9	3.5
Total lease cost	$ 8.7	$ 18	$ 32	$ 26.7

Leases - Schedule of Other Info

Leases - Schedule of Other Information Related to Leases (Details) - USD ($) $ in Millions	4 Months Ended	8 Months Ended	12 Months Ended
	Dec. 31, 2021	Sep. 07, 2021	Dec. 31, 2023	Dec. 31, 2022
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from finance leases	$ 1.2	$ 2.9	$ 3.9	$ 3.4
Operating cash flows from operating leases	3.4	7.2	13.4	11.1
Financing cash flows from finance leases	3.9	9.9	12.4	8.3
Right-of-use assets obtained in exchange for lease obligations:
New operating leases	5.4	11.5	15.7	12.2
New finance leases	$ 2	$ 3.8	$ 14.4	$ 12.3

Leases - Schedule of Additional

Leases - Schedule of Additional Quantitative Information Related to Leases (Details)	Dec. 31, 2023	Dec. 31, 2022
Leases [Abstract]
Operating leases	14 years 10 days	12 years 21 days
Finance leases	4 years 9 months 25 days	5 years 8 months 1 day
Operating leases	7.34%	5.85%
Finance leases	7.55%	7.23%

Leases - Schedule of Future Min

Leases - Schedule of Future Minimum Lease Payments Under Non-Cancellable Leases (Details) $ in Millions	Dec. 31, 2023 USD ($)
Operating Leases [Abstract]
2024	$ 15.5
2025	13.1
2026	11.4
2027	9.5
2028	9.1
Thereafter	91.9
Total future minimum lease payments	150.5
Less imputed interest	(64.7)
Total	85.8
Finance Leases [Abstract]
2024	16.8
2025	13.9
2026	10.8
2027	9.6
2028	8.5
Thereafter	7.5
Total future minimum lease payments	67.1
Less imputed interest	(11.2)
Total	$ 55.9

Leases - Schedule of Future M_2

Leases - Schedule of Future Minimum Lease Payments to be Received under Non-Cancellable Leases (Details) $ in Millions	Dec. 31, 2023 USD ($)
Lessor, Operating leases [Abstract]
2024	$ 3.4
2025	3.1
2026	2.9
2027	2.9
2028	2.6
Thereafter	11.8
Total future minimum lease payments	26.7
Less imputed interest	(7.7)
Total	$ 19

Commitments and Contingencies -

Commitments and Contingencies - Narrative (Details)	2 Months Ended	3 Months Ended	12 Months Ended
	Sep. 07, 2021 USD ($)	Dec. 31, 2023 USD ($)	Dec. 31, 2023 USD ($) RenewalOption	Dec. 31, 2022 USD ($)
Commitments And Contingencies [Line Items]
Other current liabilities		$ 62,800,000	$ 62,800,000	$ 47,800,000
Other noncurrent liabilities		143,200,000	143,200,000	119,400,000
Jointly Owned Utility Plant Aggregate Construction Cost		235,000,000	235,000,000
Amount paid for dedicated fiber build			$ 16,300,000	2,200,000
Up-Front Payments For Services, Upper Range, Years			25 years
Proceeds from sale of capacity, recorded in other noncurrent liabilities		18,800,000	$ 18,800,000	18,100,000
Proceeds from sale of capacity, recorded in other current liabilities		1,600,000	1,600,000	1,400,000
Liability for services to be delivered related to up-front payment received current		72,000,000	72,000,000	81,600,000
Letters of Credit Outstanding, Amount		17,200,000	17,200,000
Indemnification liability		0	0	0
Other Current Liabilities [Member]
Commitments And Contingencies [Line Items]
Liability for services to be delivered related to up-front payment received current		4,100,000	4,100,000	200,000
Other Noncurrent Liabilities [Member]
Commitments And Contingencies [Line Items]
Liability for services to be delivered related to up-front payment received non current		79,500,000	$ 79,500,000	200,000
Maximum [Member]
Commitments And Contingencies [Line Items]
SEA-US contract term			25 years
Indefeasible right of use of contract term			25 years
Long-term Purchase Commitments, Period			3 years
Minimum [Member]
Commitments And Contingencies [Line Items]
SEA-US contract term			15 years
Indefeasible right of use of contract term			15 years
Long-term Purchase Commitments, Period			1 year
Pole license agreement obligation [Member]
Commitments And Contingencies [Line Items]
Contract Term, in Years			10 years
Number of renewal options | RenewalOption			2
Renewal option term			5 years
Financing obligation remeasured and includes fair value step up	$ 12,200,000
Other installment financing arrangements		43,600,000	$ 43,600,000	46,600,000
Other current liabilities		2,800,000	$ 2,800,000	3,000,000
Data Center Financing Arrangements [Member]
Commitments And Contingencies [Line Items]
Contract Term, in Years			10 years
Number of renewal options | RenewalOption			2
Renewal option term			2 years
Financing obligation remeasured and includes fair value step up	$ 700,000
Other installment financing arrangements		3,000,000	$ 3,000,000	3,500,000
Other current liabilities		600,000	600,000	600,000
Other noncurrent liabilities		2,400,000	$ 2,400,000	2,900,000
Dedicated Fiber Agreement [Member]
Commitments And Contingencies [Line Items]
Indefeasible right of use of contract term	20 years		20 years
Liability for services to be delivered related to up-front payment received		58,600,000	$ 58,600,000	52,900,000
Dedicated Fiber Agreement [Member] | Other Current Liabilities [Member]
Commitments And Contingencies [Line Items]
Liability for services to be delivered related to up-front payment received current		2,100,000	2,100,000	1,400,000
Dedicated Fiber Agreement [Member] | Other Noncurrent Liabilities [Member]
Commitments And Contingencies [Line Items]
Liability for services to be delivered related to up-front payment received non current		56,500,000	56,500,000	$ 51,500,000
Involuntary Events and Contingencies [Member]
Commitments And Contingencies [Line Items]
Other current liabilities		2,000,000	2,000,000
Other noncurrent liabilities		2,000,000	2,000,000
General insurance liability		4,000,000	4,000,000
Legal expense			1,100,000
Involuntary Events and Contingencies [Member] | Other Noncurrent Assets [Member]
Commitments And Contingencies [Line Items]
Offsetting receivable		2,000,000	$ 2,000,000
Involuntary Events and Contingencies [Member] | Accounts Payable [Member]
Commitments And Contingencies [Line Items]
Insurance voluntary fund		$ 2,500,000

Commitments and Contingencies_2

Commitments and Contingencies - Schedule of Future Minimum Payments Under Base Arrangements and Renewal Options (Details) $ in Millions	Dec. 31, 2023 USD ($)
Commitments and Contingencies Disclosure [Abstract]
2024	$ 5.8
2025	5.8
2026	5.8
2027	5.8
2028	4.3
Thereafter	36
Total future minimum financing obligation payments	63.5
Less imputed interest	(16.9)
Total	$ 46.6

Commitments and Contingencies_3

Commitments and Contingencies - Schedule of Change in Asset Retirement Obligation (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Asset Retirement Obligation [Abstract]
Balance, beginning of period	$ 7.2	$ 7.3
Liabilities incurred	0	0
Liabilities settled	(0.2)	(0.4)
Accretion expense	0.3	0.3
Balance, end of period	$ 7.3	$ 7.2

Financial Instruments and Fai_3

Financial Instruments and Fair Value Measurements - Narrative (Details) - USD ($)	3 Months Ended
	Mar. 31, 2023	Jun. 30, 2022	Mar. 31, 2019	Jun. 30, 2018	Jan. 31, 2024
2.938% Interest Rate Contract [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notional amount				$ 300,000,000
Average fixed interest rate				2.938%
Interest rate swap expiration date				2023-06
2.275% Interest Rate Contract [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notional amount			$ 89,000,000
Average fixed interest rate			2.275%
Interest rate swap expiration date			2024-03
2.244% Interest Rate Contract [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notional amount			$ 89,000,000
Average fixed interest rate			2.244%
Interest rate swap expiration date			2024-03
2.328% Interest Rate Contract [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notional amount			$ 89,000,000
Average fixed interest rate			2.328%
Interest rate swap expiration date			2024-03
Cash Flow Hedging [Member] | 2.9185% Interest Rate Contract [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notional amount		$ 175,000,000
Average fixed interest rate		2.9185%
Interest rate swap expiration date		2026-05
Cash Flow Hedging [Member] | 2.8520% Interest Rate Contract [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notional amount		$ 115,000,000
Average fixed interest rate		2.852%
Interest rate swap expiration date		2026-05
Cash Flow Hedging [Member] | 2.8605% Interest Rate Contract [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notional amount		$ 85,000,000
Average fixed interest rate		2.8605%
Interest rate swap expiration date		2026-05
Cash Flow Hedging [Member] | 3.0% Interest Rate Cap One [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notional amount		$ 200,000,000
Interest rate swap expiration date		2026-05
Interest rate		3%
Deferred premiums		$ 6,700,000
Cash Flow Hedging [Member] | 3.0% Interest Rate Cap Two [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notional amount		$ 175,000,000
Interest rate swap expiration date		2026-05
Interest rate		3%
Deferred premiums		$ 5,300,000
Cash Flow Hedging [Member] | 3.6875% Interest Rate Contract [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notional amount	$ 150,000,000
Average fixed interest rate	3.6875%
Interest rate swap expiration date	2027-03
Cash Flow Hedging [Member] | 3.6500% Interest Rate Contract [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notional amount	$ 150,000,000
Average fixed interest rate	3.65%
Interest rate swap expiration date	2027-03
Cash Flow Hedging [Member] | 3.5095% Interest Rate Contract [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notional amount	$ 100,000,000
Average fixed interest rate	3.5095%
Interest rate swap expiration date	2027-03
Cash Flow Hedging [Member] | 4.3030% Interest Rate Contract [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest rate swap expiration date	2025-07
Cash Flow Hedging [Member] | 4.3030% Interest Rate Contract [Member] | Subsequent Event [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Notional amount					$ 200,000,000
Average fixed interest rate					4.303%

Financial Instruments and Fai_4

Financial Instruments and Fair Value Measurements - Schedule of Fair Values of Interest rate Swaps and Interest Rate Caps Recorded in Condensed Consolidated Balance Sheets (Details) - Estimate of Fair Value, Fair Value Disclosure [Member] - Cash Flow Hedging [Member] - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Interest Rate Swap [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest Rate Swap Assets, Current	$ 10.7	$ 7.2
Derivative Asset, Current, Statement of Financial Position [Extensible Enumeration]	Other Assets, Current	Other Assets, Current
Interest Rate Swap Assets, Noncurrent	$ 1.8	$ 5.1
Derivative Asset, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other Assets, Noncurrent	Other Assets, Noncurrent
Interest Rate Swap Liability, Noncurrent	$ 3.8
Derivative Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other Liabilities, Noncurrent
Interest Rate Cap [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest Rate Swap Assets, Current	$ 3.2	$ 3.8
Derivative Asset, Current, Statement of Financial Position [Extensible Enumeration]	Other Assets, Current	Other Assets, Current
Interest Rate Swap Liability, Noncurrent	$ 2.6	$ 2.4
Derivative Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other Liabilities, Noncurrent	Other Liabilities, Noncurrent
Fair Value, Inputs, Level 1 [Member] | Interest Rate Swap [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest Rate Swap Assets, Current	$ 0	$ 0
Derivative Asset, Current, Statement of Financial Position [Extensible Enumeration]	Other Assets, Current	Other Assets, Current
Interest Rate Swap Assets, Noncurrent	$ 0	$ 0
Derivative Asset, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other Assets, Noncurrent	Other Assets, Noncurrent
Interest Rate Swap Liability, Noncurrent	$ 0
Derivative Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other Liabilities, Noncurrent
Fair Value, Inputs, Level 1 [Member] | Interest Rate Cap [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest Rate Swap Assets, Current	$ 0	$ 0
Derivative Asset, Current, Statement of Financial Position [Extensible Enumeration]	Other Assets, Current	Other Assets, Current
Interest Rate Swap Liability, Noncurrent	$ 0	$ 0
Derivative Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other Liabilities, Noncurrent	Other Liabilities, Noncurrent
Fair Value, Inputs, Level 2 [Member] | Interest Rate Swap [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest Rate Swap Assets, Current	$ 10.7	$ 7.2
Derivative Asset, Current, Statement of Financial Position [Extensible Enumeration]	Other Assets, Current	Other Assets, Current
Interest Rate Swap Assets, Noncurrent	$ 1.8	$ 5.1
Derivative Asset, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other Assets, Noncurrent	Other Assets, Noncurrent
Interest Rate Swap Liability, Noncurrent	$ 3.8
Derivative Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other Liabilities, Noncurrent
Fair Value, Inputs, Level 2 [Member] | Interest Rate Cap [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest Rate Swap Assets, Current	$ 3.2	$ 3.8
Derivative Asset, Current, Statement of Financial Position [Extensible Enumeration]	Other Assets, Current	Other Assets, Current
Interest Rate Swap Liability, Noncurrent	$ 2.6	$ 2.4
Derivative Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other Liabilities, Noncurrent	Other Liabilities, Noncurrent
Fair Value, Inputs, Level 3 [Member] | Interest Rate Swap [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest Rate Swap Assets, Current	$ 0	$ 0
Derivative Asset, Current, Statement of Financial Position [Extensible Enumeration]	Other Assets, Current	Other Assets, Current
Interest Rate Swap Assets, Noncurrent	$ 0	$ 0
Derivative Asset, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other Assets, Noncurrent	Other Assets, Noncurrent
Interest Rate Swap Liability, Noncurrent	$ 0
Derivative Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other Liabilities, Noncurrent
Fair Value, Inputs, Level 3 [Member] | Interest Rate Cap [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest Rate Swap Assets, Current	$ 0	$ 0
Derivative Asset, Current, Statement of Financial Position [Extensible Enumeration]	Other Assets, Current	Other Assets, Current
Interest Rate Swap Liability, Noncurrent	$ 0	$ 0
Derivative Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Other Liabilities, Noncurrent	Other Liabilities, Noncurrent

Financial Instruments and Fai_5

Financial Instruments and Fair Value Measurements - Schedule of Summarizes the Location of Gains in the Condensed Consolidated Statements of Operations in Addition to the Derivative Contract Type (Details) - Cash Flow Hedging [Member] - Other (Income) Expense, Net [Member] - USD ($) $ in Millions	4 Months Ended	8 Months Ended	12 Months Ended
	Dec. 31, 2021	Sep. 07, 2021	Dec. 31, 2023	Dec. 31, 2022
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest Rate	$ 0	$ (20.1)	$ 0	$ 0
Interest Rate Swap [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest Rate			(9.3)	(11.7)
Interest Rate Cap [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest Rate			$ (3.8)	$ (0.3)

Financial Instruments and Fai_6

Financial Instruments and Fair Value Measurements - Amount of Gains (Losses) Recognized in Accumulated Other Comprehensive Income (Effective Portion) Net of Reclassification into Earnings (Details) - USD ($) $ in Millions	4 Months Ended	8 Months Ended	12 Months Ended
	Dec. 31, 2021	Sep. 07, 2021	Dec. 31, 2023	Dec. 31, 2022
Cash Flow Hedging [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest Rate Swap	$ 0	$ 5.3	$ 0	$ 0

Financial Instruments and Fai_7

Financial Instruments and Fair Value Measurements - Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss) (Details) - Cash Flow Hedging [Member] - USD ($) $ in Millions	4 Months Ended	8 Months Ended	12 Months Ended
	Dec. 31, 2021	Sep. 07, 2021	Dec. 31, 2023	Dec. 31, 2022
Other (Income) Expense, Net [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest Rate Swap	$ 0	$ (20.1)	$ 0	$ 0
Interest Expense [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Interest Rate Swap	$ 0	$ (5.4)	$ 0	$ 0

Financial Instruments and Fai_8

Financial Instruments and Fair Value Measurements - Schedule of Carrying and Fair Values by Balance Sheet Grouping (Details) - USD ($) $ in Millions		Dec. 31, 2023	Dec. 31, 2022
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, including current portion	[1]	$ 1,842.3	$ 1,686.5
Other financing arrangements		46.6	50.1
Estimate of Fair Value, Fair Value Disclosure [Member]
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, including current portion	[1]	1,815.1	1,647
Other financing arrangements		$ 40.4	$ 45.3
[1] Excludes finance leases, other financing arrangements and note issuance costs

Pension and Postretirement Pl_3

Pension and Postretirement Plans - Narratives (Details)		3 Months Ended	4 Months Ended	8 Months Ended	12 Months Ended
		Sep. 30, 2022 USD ($)	Dec. 31, 2021 USD ($)	Sep. 07, 2021 USD ($)	Dec. 31, 2023 USD ($) Plan	Dec. 31, 2022 USD ($)
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Defined contribution plan, cost			$ 4,000,000	$ 9,700,000	$ 14,900,000	$ 13,900,000
Adjustments to goodwill						35,000,000
United States [Member]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Allocation percentage in united states based investments					50%
Cincinnati Plans and Hawaii Nonunion Plan [Member] | Equity Securities [Member]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Target allocation, plan assets percentage					40%
Cincinnati Plans and Hawaii Nonunion Plan [Member] | Fixed Income Securities [Member]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Target allocation, plan assets percentage					60%
Cincinnati Plans [Member]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Number of noncontributory defined benefit pension plans | Plan					3
Hawaii Pension Plan for Union Employees [Member] | Equity Securities [Member]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Target allocation, plan assets percentage					30%
Hawaii Pension Plan for Union Employees [Member] | Fixed Income Securities [Member]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Target allocation, plan assets percentage					70%
Pension Plans, Defined Benefit [Member]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Actuarial gains (losses) and prior service costs (benefits) recorded in accumulated other comprehensive loss					$ 5,800,000	(5,100,000)
Settlements	[1]				0	7,500,000
Settlements	[1]				0	7,500,000
Actuarial gain	[2],[3]				(8,800,000)	146,300,000
Pension Plans, Defined Benefit [Member] | Qualified Plan [Member]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Contributions to pension plans			0	900,000	200,000	0
Expected future employer contributions, next fiscal year					1,000,000
Pension Plans, Defined Benefit [Member] | Nonqualified Plan [Member]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Contributions to pension plans			800,000	1,800,000	2,000,000	2,200,000
Expected future employer contributions, next fiscal year					2,000,000
Pension Plans, Defined Benefit [Member] | Hawaii Plans [Member]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Decrease in benefit obligations			1,900,000	7,400,000		7,500,000
Settlements			$ 1,900,000	7,400,000		7,500,000
Pension settlement charges				$ 400,000
Other Postretirement Benefit Plans, Defined Benefit [Member]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Actuarial gains (losses) and prior service costs (benefits) recorded in accumulated other comprehensive loss					27,400,000	32,200,000
Settlements	[1]				0	0
Settlements	[1]				0	0
Actuarial gain	[2],[3]				(1,100,000)	$ 37,100,000
Expected future employer contributions, next fiscal year					$ 7,000,000
Other Postretirement Benefit Plans, Defined Benefit [Member] | Hawaii Plans [Member]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Actuarial gain		$ 4,700,000
Adjustments to postretirement and other benefits liability		45,900,000
Adjustments to goodwill		35,000,000
Adjustments to deferred income tax liabilities		$ 10,900,000
[1] Participant elections to take lump sum payments that exceeded the settlement accounting threshold and have been categorized as settlements. The actuarial loss recorded for the year ended December 31, 2023 for the pension plans was primarily driven by a decrease in the discount rate. The actuarial (gain) recorded during the year ended December 31, 2022 for the pension plans was primarily driven by an increase in the discount rate. The actuarial loss recorded for the year ended December 31, 2023 for the postretirement plans was primarily driven by a decrease in the discount rate. The actuarial (gain) recorded for the year ended December 31, 2022 for the postretirement plans was primarily driven by an increase in the discount rate, updated census data and the result of actual versus expected benefit payments.

Pension and Postretirement Pl_4

Pension and Postretirement Plans - Schedule of Pension and Postretirement Costs Benefit (Details) - USD ($) $ in Millions	4 Months Ended	8 Months Ended	12 Months Ended
	Dec. 31, 2021	Sep. 07, 2021	Dec. 31, 2023	Dec. 31, 2022
Pension Plans, Defined Benefit [Member]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Service cost	$ 0	$ 0	$ 0	$ 0
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Excluding Service Cost, Statement of Income or Comprehensive Income [Extensible Enumeration]	Other Components Of Pension And Postretirement Benefit Plans Expense Reversals	Other Components Of Pension And Postretirement Benefit Plans Expense Reversals	Other Components Of Pension And Postretirement Benefit Plans Expense Reversals	Other Components Of Pension And Postretirement Benefit Plans Expense Reversals
Interest cost on projected benefit obligation	$ 4.7	$ 10.2	$ 22	$ 16.3
Expected return on plan assets	(10.2)	(19.9)	(20.8)	(27.5)
Amortization of:
Prior service benefit	0	0	0	0
Actuarial (gain) loss	0	16	(0.3)	0
Pension/postretirement cost (benefit)	(5.5)	6.3	0.9	(11.2)
Other Postretirement Benefit Plans, Defined Benefit [Member]
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) [Abstract]
Service cost	$ 0.1	$ 0.3	$ 0.5	$ 0.8
Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Excluding Service Cost, Statement of Income or Comprehensive Income [Extensible Enumeration]	Other Components Of Pension And Postretirement Benefit Plans Expense Reversals	Other Components Of Pension And Postretirement Benefit Plans Expense Reversals	Other Components Of Pension And Postretirement Benefit Plans Expense Reversals	Other Components Of Pension And Postretirement Benefit Plans Expense Reversals
Interest cost on projected benefit obligation	$ 0.8	$ 1.8	$ 5.2	$ 4.2
Expected return on plan assets	0	0	0	0
Amortization of:
Prior service benefit	0	(1.7)	(0.7)	(0.2)
Actuarial (gain) loss	0	0	(4.7)	(0.6)
Pension/postretirement cost (benefit)	$ 0.9	$ 0.4	$ 0.3	$ 4.2

Pension and Postretirement Pl_5

Pension and Postretirement Plans - Assumptions (Details)	4 Months Ended	8 Months Ended	12 Months Ended
	Dec. 31, 2021	Sep. 07, 2021	Dec. 31, 2023	Dec. 31, 2022
Cincinnati Plans [Member]
Defined Benefit Plan, Assumed Health Care Cost Trend Rates [Abstract]
Healthcare cost trend			7%	6.50%
Rate to which the cost trend is assumed to decline (ultimate trend rate)			4.80%	4.80%
Year the rates reach the ultimate trend rate			2033	2032
Cincinnati Plans [Member] | Pension Plans, Defined Benefit [Member]
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]
Discount rate	2.60%	2.40%	5.40%	2.70%
Expected long-term rate of return	6%	6%	6%	5.80%
Cash balance interest credit rate	4%	4%	4%	4%
Future compensation growth rate	0%	0%	0%	0%
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Discount rate			5%	5.40%
Cash balance interest credit rate			4%	4%
Future compensation growth rate			0%	0%
Cincinnati Plans [Member] | Other Postretirement Benefit Plans, Defined Benefit [Member]
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]
Discount rate	2.60%	2.40%	5.40%	2.80%
Expected long-term rate of return	0%	0%	0%	0%
Cash balance interest credit rate	0%	0%	0%	0%
Future compensation growth rate	0%	0%	0%	0%
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Discount rate			5%	5.40%
Cash balance interest credit rate			0%	0%
Future compensation growth rate			0%	0%
Hawaii Plans [Member] | Pension Plans, Defined Benefit [Member]
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]
Discount rate	2.50%	2.30%	5.40%	3.90%
Expected long-term rate of return	6%	6%	5.50%	5%
Cash balance interest credit rate	1.10%	1.20%	5.10%	1.90%
Future compensation growth rate	0%	0%	0%	0%
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Discount rate			5%	5.40%
Cash balance interest credit rate			0%	5.10%
Future compensation growth rate			0%	0%
Hawaii Plans [Member] | Other Postretirement Benefit Plans, Defined Benefit [Member]
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Net Periodic Benefit Cost [Abstract]
Discount rate	2.80%	2.60%	5.50%	3.70%
Expected long-term rate of return	0%	0%	0%	0%
Cash balance interest credit rate	0%	0%	0%	0%
Future compensation growth rate	0%	0%	0%	0%
Defined Benefit Plan, Weighted Average Assumptions Used in Calculating Benefit Obligation [Abstract]
Discount rate			5.10%	5.50%
Cash balance interest credit rate			0%	0%
Future compensation growth rate			0%	0%

Pension and Postretirement Pl_6

Pension and Postretirement Plans - Benefit Obligation and Funded Status (Details) - USD ($) $ in Millions		4 Months Ended	8 Months Ended	12 Months Ended
		Dec. 31, 2021	Sep. 07, 2021	Dec. 31, 2023	Dec. 31, 2022
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of period				$ 393.8
Fair value of plan assets at end of period				400.9	$ 393.8
Pension Plans, Defined Benefit [Member]
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation at beginning of period				439.5	611.9
Service cost		$ 0	$ 0	0	0
Interest cost		4.7	10.2	22	16.3
Hawaii Plan Adjustment				0	0
Plan Amendment				0.1	0
Actuarial loss (gain)	[1],[2]			8.8	(146.3)
Benefits paid				(36.7)	(34.9)
Settlements	[3]			0	(7.5)
Other				0	0
Benefit obligation at end of period		611.9		433.7	439.5
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of period				390.6	559.2
Actual return (loss) on plan assets				41.7	(128.3)
Employer contributions				2.2	2.1
Benefits paid				(36.7)	(34.9)
Settlements	[3]			0	(7.5)
Fair value of plan assets at end of period		559.2		397.8	390.6
Unfunded status				(35.9)	(48.9)
Other Postretirement Benefit Plans, Defined Benefit [Member]
Defined Benefit Plan, Change in Benefit Obligation [Roll Forward]
Benefit obligation at beginning of period				102.4	100.9
Service cost		0.1	0.3	0.5	0.8
Interest cost		0.8	$ 1.8	5.2	4.2
Hawaii Plan Adjustment				0	45.9
Plan Amendment				0	(4.7)
Actuarial loss (gain)	[1],[2]			1.1	(37.1)
Benefits paid				(9.1)	(9.8)
Settlements	[3]			0	0
Other				2	2.2
Benefit obligation at end of period		100.9		102.1	102.4
Defined Benefit Plan, Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets at beginning of period				3.2	3.3
Actual return (loss) on plan assets				0	0.1
Employer contributions				6.9	7.3
Benefits paid				(7)	(7.5)
Settlements	[3]			0	0
Fair value of plan assets at end of period		$ 3.3		3.1	3.2
Unfunded status				$ (99)	$ (99.2)
[1] The actuarial loss recorded for the year ended December 31, 2023 for the pension plans was primarily driven by a decrease in the discount rate. The actuarial (gain) recorded during the year ended December 31, 2022 for the pension plans was primarily driven by an increase in the discount rate. The actuarial loss recorded for the year ended December 31, 2023 for the postretirement plans was primarily driven by a decrease in the discount rate. The actuarial (gain) recorded for the year ended December 31, 2022 for the postretirement plans was primarily driven by an increase in the discount rate, updated census data and the result of actual versus expected benefit payments. Participant elections to take lump sum payments that exceeded the settlement accounting threshold and have been categorized as settlements.

Pension and Postretirement Pl_7

Pension and Postretirement Plans - Amounts Recognized in Balance Sheet (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Defined Benefit Plan Disclosure [Line Items]
Other noncurrent assets	$ (78)	$ (58.9)
Pension and postretirement benefit obligations	127.9	138.9
Pension Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Other noncurrent assets	(2.1)	0
Accrued payroll and benefits	1.5	1.5
Pension and postretirement benefit obligations	36.5	47.4
Total	35.9	48.9
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Prior service cost, net of tax of ($0.4), ($0.2)	0	0
Actuarial gain (loss), net of tax of ($0.8), ($1.6), $8.9, $10.2	5.8	(5.1)
Total	5.8	(5.1)
Actuarial gain (loss), tax	(0.8)	(1.6)
Other Postretirement Benefit Plans, Defined Benefit [Member]
Defined Benefit Plan Disclosure [Line Items]
Other noncurrent assets	0	0
Accrued payroll and benefits	7.9	8.1
Pension and postretirement benefit obligations	91.1	91.1
Total	99	99.2
Accumulated Other Comprehensive Income (Loss), Net of Tax [Abstract]
Prior service cost, net of tax of ($0.4), ($0.2)	(1.2)	(0.6)
Actuarial gain (loss), net of tax of ($0.8), ($1.6), $8.9, $10.2	28.6	32.8
Total	27.4	32.2
Prior service costs, tax	0.4	(0.2)
Actuarial gain (loss), tax	$ 8.9	$ 10.2

Pension and Postretirement Pl_8

Pension and Postretirement Plans - Amounts Recognized in AOCI (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Pension Plans, Defined Benefit [Member]
Prior service cost recognized:
Reclassification adjustments	$ 0	$ 0
Actuarial gain (loss) recognized:
Reclassification adjustments	(0.3)	0
Actuarial gain (loss) arising during the period	12	(9.4)
Other Postretirement Benefit Plans, Defined Benefit [Member]
Prior service cost recognized:
Reclassification adjustments	(0.8)	4.7
Actuarial gain (loss) recognized:
Reclassification adjustments	(4.7)	(0.8)
Actuarial gain (loss) arising during the period	$ (0.8)	$ 37.6

Pension and Postretirement Pl_9

Pension and Postretirement Plans - Fair Value of Pension Plan Assets (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 400.9	$ 393.8
Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	397.8	390.6
Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
U.S. Equity Index Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	72.9	71.5
U.S. Equity Index Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	72.9	71.5
U.S. Equity Index Funds [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
U.S. Equity Index Funds [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
International Equity Index Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	72.6	74.5
International Equity Index Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	72.6	74.5
International Equity Index Funds [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
International Equity Index Funds [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Fixed Income Bond Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	252	244.5
Fixed Income Bond Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	252	244.5
Fixed Income Bond Funds [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Fixed Income Bond Funds [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Fixed Income Short-term Money Market Funds [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.3	0.1
Fixed Income Short-term Money Market Funds [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0.3	0.1
Fixed Income Short-term Money Market Funds [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Fixed Income Short-term Money Market Funds [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Group Insurance Contract [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	3.1	3.2
Group Insurance Contract [Member] | Fair Value, Inputs, Level 1 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Group Insurance Contract [Member] | Fair Value, Inputs, Level 2 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	0	0
Group Insurance Contract [Member] | Fair Value, Inputs, Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Fair value of plan assets	$ 0	$ 0

Pension and Postretirement P_10

Pension and Postretirement Plans - Expected Future Benefit Payments (Details) $ in Millions	Dec. 31, 2023 USD ($)
Defined Benefit Plan, Expected Future Prescription Drug Subsidy Receipt [Abstract]
2024	$ (0.1)
2025	(0.1)
2026	(0.1)
2027	(0.1)
2028	(0.1)
Years 2029 - 2033	(0.2)
Pension Plans, Defined Benefit [Member]
Defined Benefit Plan, Expected Future Benefit Payment [Abstract]
2024	48.2
2025	46.3
2026	42.7
2027	40.3
2028	38.1
Years 2029 - 2033	159.7
Other Postretirement Benefit Plans, Defined Benefit [Member]
Defined Benefit Plan, Expected Future Benefit Payment [Abstract]
2024	8
2025	7.9
2026	7.7
2027	7.6
2028	7.5
Years 2029 - 2033	$ 35.4

Equity - Additional Information

Equity - Additional Information (Details) - USD ($)	Sep. 07, 2021	Dec. 31, 2023	Dec. 31, 2022	Oct. 18, 2021	Oct. 17, 2021
Class of Stock [Line Items]
Common stock, shares authorized		100	100
Red Fiber Parent Limited Liability Company [Member]
Class of Stock [Line Items]
Business Acquisition, Share Price	$ 15.5
Preferred stock redemption price per Depositary Share	$ 50
Preferred stock redemption preference per redemption percentage	$ 1,000
Preferred Stock, Dividend Rate, Percentage	6.75%
Common stock, shares authorized				100	96,000,000
Common stock, par value				$ 0.01	$ 0.01

Equity - Schedule of Changes in

Equity - Schedule of Changes in Accumulated Other Comprehensive Income (Loss) by Component (Details) - USD ($) $ in Millions		4 Months Ended	8 Months Ended	12 Months Ended
		Dec. 31, 2021	Sep. 07, 2021	Dec. 31, 2023	Dec. 31, 2022
Changes in Accumulated Other Comprehensive Loss by Component [Roll Forward]
Beginning balance				$ 19.5	$ 1.2
Remeasurement of benefit obligations		$ 2.6	$ 6	10.5	25.1
Reclassifications, net	[1]			(4.4)	(0.6)
Foreign currency gain (loss)		(1.4)	$ 1.2	2.6	(6.2)
Ending balance		1.2		28.2	19.5
Accumulated Defined Benefit Plans Adjustment Attributable to Parent [Member]
Changes in Accumulated Other Comprehensive Loss by Component [Roll Forward]
Beginning balance				27.1	2.6
Remeasurement of benefit obligations				10.5	25.1
Reclassifications, net	[1]			(4.4)	(0.6)
Foreign currency gain (loss)				0	0
Ending balance		2.6		33.2	27.1
Accumulated Foreign Currency Adjustment Attributable to Parent [Member]
Changes in Accumulated Other Comprehensive Loss by Component [Roll Forward]
Beginning balance				(7.6)	(1.4)
Remeasurement of benefit obligations				0	0
Reclassifications, net				0	0
Foreign currency gain (loss)				2.6	(6.2)
Ending balance		$ (1.4)		$ (5)	$ (7.6)
[1] These reclassifications are included in the other components of net periodic pension and postretirement benefit plans expense and represent amortization of prior service benefit and actuarial gain, net of tax. The other components of net periodic pension and postretirement benefit plans expense are recorded in "Other components of pension and postretirement benefit plans expense (benefit)" on the Consolidated Statements of Operations. See Note 11 for further disclosures.

Income Taxes - Schedule of Inco

Income Taxes - Schedule of Income Tax Expense (Benefit) for Continuing Operations (Details) - USD ($) $ in Millions	4 Months Ended	8 Months Ended	12 Months Ended
	Dec. 31, 2021	Sep. 07, 2021	Dec. 31, 2023	Dec. 31, 2022
Current:
Federal	$ 0	$ 0	$ 0	$ 0
State and local	(0.4)	0.7	0.5	0.6
Foreign	1.6	3.1	6	6.4
Total current	1.2	3.8	6.5	7
Deferred:
Federal	(9.2)	(16.1)	(52.8)	(37.9)
State and local	7.4	(3.8)	(5.2)	2.7
Foreign	(0.7)	(0.8)	(1.7)	(3.1)
Total deferred	(2.5)	(20.7)	(59.7)	(38.3)
Valuation allowance	(6)	0	18.9	(3.8)
Total	$ (7.3)	$ (16.9)	$ (34.3)	$ (35.1)

Income Taxes - Schedule of Effe

Income Taxes - Schedule of Effective Income Tax Rate Reconciliation (Details)	4 Months Ended	8 Months Ended	12 Months Ended
	Dec. 31, 2021	Sep. 07, 2021	Dec. 31, 2023	Dec. 31, 2022
Effective Income Tax Rate Reconciliation, Percent [Abstract]
U.S. federal statutory rate	21%	21%	21%	21%
State and local income taxes, net of federal income tax	2.10%	2.50%	3.20%	3.10%
Transaction costs	(0.40%)	(4.10%)	0%	0%
Non-Deductible meals and entertainment	(0.20%)	(0.30%)	(0.30%)	(0.30%)
State net operating loss adjustments	(18.40%)	0%	(1.40%)	(4.40%)
Change in valuation allowance, net of federal income tax	17.50%	0%	(8.30%)	2.30%
Change in uncertain tax positions	0.10%	0%	0%	0%
Research and development credits	0%	0%	1.40%	0%
Other differences, net	(0.40%)	(1.90%)	(0.50%)	(0.50%)
Effective tax rate	21.30%	17.20%	15.10%	21.20%

Income Taxes - Schedule of In_2

Income Taxes - Schedule of Income Tax (Benefit) Provision Charged to Continuing Operations or Accumulated Other Comprehensive Income (Details) - USD ($) $ in Millions	4 Months Ended	8 Months Ended	12 Months Ended
	Dec. 31, 2021	Sep. 07, 2021	Dec. 31, 2023	Dec. 31, 2022
Income tax (benefit) provision related to:
Continuing operations	$ (7.3)	$ (16.9)	$ (34.3)	$ (35.1)
Accumulated other comprehensive (loss) income	$ 0.8	$ 10.8	$ (0.7)	$ 7.6

Income Taxes - Schedule of Defe

Income Taxes - Schedule of Deferred Tax Assets and Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Deferred tax assets:
Net operating loss carryforwards	$ 209	$ 227.6
Finance and operating lease obligations	19.8	21.6
Pension and postretirement benefits	32.8	35.8
Employee benefits	3.9	4.7
Interest limitation	48.8	16.7
State tax credit	7.4	8
Other	30.8	23.4
Total deferred tax assets	352.5	337.8
Valuation allowance	(32.8)	(15.7)
Total deferred tax assets, net of valuation allowance	319.7	322.1
Deferred tax liabilities:
Property, plant and equipment and intangibles	(361.8)	(410.5)
Other	(9.3)	(7.6)
Total deferred tax liabilities	(371.1)	(418.1)
Net deferred tax liabilities	$ (51.4)	$ (96)

Income Taxes - Narrative (Detai

Income Taxes - Narrative (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Deferred Tax Assets, Operating Loss Carryforwards, Components [Abstract]
Federal net operating loss carryforwards	$ 897.1
Federal net operating loss carryforwards, deferred tax asset value	188.4
Deferred Tax Assets, Operating Loss Carryforwards, State and Local Tax	20.6
Unrecognized Tax Benefits that Would Impact Effective Tax Rate	19.3	$ 19
Deferred Tax Assets, Valuation Allowance	32.8	15.7
Other Deferred Tax Assets [Member]
Deferred Tax Assets, Operating Loss Carryforwards, Components [Abstract]
Deferred Tax Assets, Valuation Allowance	$ 32.8	15.7
Domestic Country | Expire in 2022
Deferred Tax Assets, Operating Loss Carryforwards, Components [Abstract]
Federal net operating loss carryforwards		$ 55.8

Income Taxes - Schedule of Reco

Income Taxes - Schedule of Reconciliation of Unrecognized Tax Benefits (Details) - USD ($) $ in Millions	4 Months Ended	8 Months Ended	12 Months Ended
	Dec. 31, 2021	Sep. 07, 2021	Dec. 31, 2023	Dec. 31, 2022
Income Tax Uncertainties [Abstract]
Balance, beginning of year	$ 19.2	$ 19.2	$ 19.3	$ 19.3
Change in tax positions for the current year	0.1	0	0.3	0
Balance, end of year	$ 19.3	$ 19.2	$ 19.6	$ 19.3

Stock-Based and Deferred Comp_3

Stock-Based and Deferred Compensation Plans - Narrative (Details) - USD ($)	4 Months Ended	8 Months Ended	12 Months Ended
	Dec. 31, 2021	Sep. 07, 2021	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Cash-Settled Awards Arrangement
Cash-settled awards, remaining vesting percentage					20%
Cash-settled awards, vesting expiration period					8 years
Cash-settled awards, vesting period	6 months				4 years
Remaining cash settled awards vesting period	18 months
Compensation expense	$ 0	$ 4,300,000	$ 0	$ 0
Expense incurred for cash-payment awards	1,000,000	2,400,000	300,000	3,300,000
Officers and Key Employees [Member]
Cash-Settled Awards Arrangement
Cash-settled awards, granted value						$ 10,500,000
Compensation expense	0	0	$ 0	0
Other Noncurrent Liabilities [Member]
Cash-Settled Awards Arrangement
Cash Settled Awards				4,600,000
Stock Options and Stock Appreciation Rights [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period			3 years
Share-based Compensation Arrangement by Share-based Payment Award, Expiration Period			10 years
Cash-Settled Awards Arrangement
Compensation expense	0	0	$ 0	0
Performance Stock Options [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period			3 years
Performance-Based Restricted Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period			3 years
Expense related to performance-based restricted awards		5,000,000
Restricted Stock [Member]
Cash-Settled Awards Arrangement
Compensation expense	$ 0	6,900,000	$ 0	$ 0
Restricted Stock [Member] | Hawaiian Telcom Holdco, Inc. [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Award Vesting Period			4 years
Time-based Restricted Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Expense related to performance-based restricted awards		$ 4,300,000

Stock-Based and Deferred Comp_4

Stock-Based and Deferred Compensation Plans - Summary of Stock Options and Stock Appreciation Rights Activity (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	4 Months Ended	8 Months Ended	12 Months Ended
	Dec. 31, 2021	Sep. 07, 2021	Dec. 31, 2023	Dec. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Compensation expense for the year	$ 0	$ 4.3	$ 0	$ 0
Stock Options and Stock Appreciation Rights [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding [Roll Forward]
Shares, Outstanding and Exercisable, Beginning balance	0	143	0	0
Shares, Exercised	0	0	0	0
Shares, Forfeited	0	0	0	0
Shares, Awards cancelled pursuant to Merger Agreement	0	(143)	0	0
Shares, Outstanding and Exercisable, Ending balance	0	0	0	0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Weighted Average Exercise Price [Abstract]
Weighted-Average Exercise Price Per Share, Outstanding and Exercisable, Beginning balance	$ 0	$ 18.37	$ 0	$ 0
Weighted-Average Exercise Price Per Share, Exercised	0	0	0	0
Weighted-Average Exercise Price Per Share, Forfeited	0	0	0	0
Weighted Average Exercise Price Per Share, Awards cancelled pursuant to Merger Agreement	0	18.37	0	0
Weighted-Average Exercise Price Per Share, Outstanding and Exercisable, Ending balance	$ 0	$ 0	$ 0	$ 0
Share-based Compensation Arrangement by Share-based Payment Award, Options, Additional Disclosures [Abstract]
Compensation expense for the year	$ 0	$ 0	$ 0	$ 0
Tax benefit related to compensation expense	0	0	0	0
Intrinsic value of awards exercised	0	0	0	0
Cash received from awards exercised	0	0	0	0
Grant date fair value of awards vested	$ 0	$ 0	$ 0	$ 0

Stock-Based and Deferred Comp_5

Stock-Based and Deferred Compensation Plans - Summary of Performance Based Restricted Award Activity (Details) - USD ($) $ / shares in Units, $ in Millions		4 Months Ended	8 Months Ended	12 Months Ended
		Dec. 31, 2021	Sep. 07, 2021	Dec. 31, 2023	Dec. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract]
Compensation expense for the year		$ 0	$ 4.3	$ 0	$ 0
Performance Based Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]
Shares, Non-vested, Beginning balance		0	1,037,000	0	0
Shares, Granted	[1]	0	0	0	0
Shares, Vested		0	(1,037,000)	0	0
Shares, Forfeited		0	0	0	0
Shares, Non-vested, Ending balance		0	0	0	0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Weighted-Average Exercise Price Per Share, Non-vested, Beginning balance		$ 0	$ 10.87	$ 0	$ 0
Weighted-Average Exercise Price Per Share, Granted	[1]	0	0	0	0
Weighted-Average Exercise Price Per Share, Vested		0	10.87	0	0
Weighted-Average Exercise Price Per Share, Forfeited		0	0	0	0
Weighted-Average Exercise Price Per Share, Non-vested, Ending balance		$ 0	$ 0	$ 0	$ 0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract]
Compensation expense for the year		$ 0	$ 6.2	$ 0	$ 0
Tax benefit related to compensation expense		0	(1.5)	0	0
Grant date fair value of awards vested		$ 0	$ 11.3	$ 0	$ 0
[1] Assumes the maximum number of awards that can be earned if the performance conditions are achieved.

Stock-Based and Deferred Comp_6

Stock-Based and Deferred Compensation Plans - Summary of Time Based Restricted Award Activity (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Millions	4 Months Ended	8 Months Ended	12 Months Ended
	Dec. 31, 2021	Sep. 07, 2021	Dec. 31, 2023	Dec. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract]
Compensation expense for the year	$ 0	$ 4.3	$ 0	$ 0
Restricted Stock [Member]
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested [Roll Forward]
Shares, Non-vested, Beginning balance	0	792	0	0
Shares, Granted	0	0	0	0
Shares, Vested	0	(792)	0	0
Shares, Forfeited	0	0	0	0
Shares, Non-vested, Ending balance	0	0	0	0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Weighted Average Grant Date Fair Value [Abstract]
Weighted-Average Exercise Price Per Share, Non-vested, Beginning balance	$ 0	$ 11.42	$ 0	$ 0
Weighted-Average Exercise Price Per Share, Granted	0	0	0	0
Weighted-Average Exercise Price Per Share, Vested	0	11.42	0	0
Weighted-Average Exercise Price Per Share, Forfeited	0	0	0	0
Weighted-Average Exercise Price Per Share, Non-vested, Ending balance	$ 0	$ 0	$ 0	$ 0
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Additional Disclosures [Abstract]
Compensation expense for the year	$ 0	$ 6.9	$ 0	$ 0
Tax benefit related to compensation expense	0	(1.7)	0	0
Grant date fair value of awards vested	$ 0	$ 9	$ 0	$ 0

Restructuring and Severance - S

Restructuring and Severance - Summary of activity in the restructuring and severance liability (Details) - USD ($) $ in Millions	4 Months Ended	8 Months Ended	12 Months Ended
	Dec. 31, 2021	Sep. 07, 2021	Dec. 31, 2023	Dec. 31, 2022
Restructuring Reserve [Roll Forward]
Beginning Balance	$ 0.1	$ 4.5	$ 0	$ 0.2
Charges	0.6	1.2	13.8	2
Utilizations	(0.5)	(5.6)	(3.3)	(2.2)
Ending Balance	0.2	0.1	10.5	0
Employee Separation [Member]
Restructuring Reserve [Roll Forward]
Beginning Balance	0.1	4.5	0	0.2
Charges	0.6	1.2	13.8	2
Utilizations	(0.5)	(5.6)	(3.3)	(2.2)
Ending Balance	$ 0.2	$ 0.1	$ 10.5	$ 0

Restructuring and Severance - N

Restructuring and Severance - Narrative (Details) - USD ($)	3 Months Ended
	Dec. 31, 2023	Dec. 31, 2022
Restructuring Cost and Reserve [Line Items]
Restructuring liabilities included in other current liabilities	$ 10,500,000	$ 0
Voluntary Severance Program [Member]
Restructuring Cost and Reserve [Line Items]
Severance Costs	7,300,000
Involuntary Severance Charges [Member]
Restructuring Cost and Reserve [Line Items]
Severance Costs	$ 3,500,000

Restructuring and Severance -_2

Restructuring and Severance - Summary of Restructuring Activity by Business Segment (Details) - USD ($) $ in Millions	4 Months Ended	8 Months Ended	12 Months Ended
	Dec. 31, 2021	Sep. 07, 2021	Dec. 31, 2023	Dec. 31, 2022
Restructuring Cost and Reserve [Line Items]
Beginning Balance	$ 0.1	$ 4.5	$ 0	$ 0.2
Charges	0.6	1.2	13.8	2
Utilizations	(0.5)	(5.6)	(3.3)	(2.2)
Ending Balance	0.2	0.1	10.5	0
Operating Segments [Member] | Network [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance	0.1	4.4	0	0.1
Charges	0	(0.5)	10.3	0
Utilizations	0	(3.8)	(0.6)	(0.1)
Ending Balance	0.1	0.1	9.7	0
Operating Segments [Member] | IT Services and Hardware [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance	0	0	0	0.1
Charges	0.6	1.7	3	2
Utilizations	(0.5)	(1.7)	(2.7)	(2.1)
Ending Balance	0.1	0	0.3	0
Corporate [Member]
Restructuring Cost and Reserve [Line Items]
Beginning Balance	0	0.1	0	0
Charges	0	0	0.5	0
Utilizations	0	(0.1)	0	0
Ending Balance	$ 0	$ 0	$ 0.5	$ 0

Business Segment Information -

Business Segment Information - Narrative (Details) $ in Millions	4 Months Ended	8 Months Ended	12 Months Ended
	Dec. 31, 2021 Segment	Sep. 07, 2021 Segment	Dec. 31, 2023 USD ($) Segment	Dec. 31, 2022 USD ($) Segment
Segment Reporting Information [Line Items]
Number of operating segments | Segment	2	2	2	2
Deferred tax assets, net of valuation allowance, noncurrent			$ 2.8	$ 2.2
Deferred tax liabilities, net, noncurrent			54.2	$ 98.2
Operating Segments [Member]
Segment Reporting Information [Line Items]
Increases (decreases) in total assets			316.4
Operating Segments [Member] | Network [Member]
Segment Reporting Information [Line Items]
Increases (decreases) in total assets			319.1
Operating Segments [Member] | IT Services and Hardware [Member]
Segment Reporting Information [Line Items]
Increases (decreases) in total assets			276.5
Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
Increases (decreases) in total assets			$ 279.2

Business Segment Information _2

Business Segment Information - Selected Financial Data for the Company's Business Segment Information (Details) - USD ($) $ in Millions		4 Months Ended	8 Months Ended	12 Months Ended
		Dec. 31, 2021	Sep. 07, 2021	Dec. 31, 2023	Dec. 31, 2022
Segment Reporting Information [Line Items]
Revenue		$ 554.4	$ 1,138.7	$ 1,817.3	$ 1,796
Operating (loss) income		(9.1)	27.7	(82.7)	(97.3)
Expenditures for long-lived assets	[1]	1,749.4	215.7	653.2	555.1
Depreciation and amortization		144.6	194.9	449.6	497.1
Assets				4,752	4,435.6
Operating Segments [Member] | Network [Member]
Segment Reporting Information [Line Items]
Revenue		303.8	664.2	1,002.9	994.3
Operating (loss) income		(6.3)	78.3	(52.7)	(56.2)
Expenditures for long-lived assets		114.8	199.8	627.5	524.9
Depreciation and amortization		113	166.9	355.3	393.3
Assets				3,537.6	3,218.5
Operating Segments [Member] | IT Services and Hardware [Member]
Segment Reporting Information [Line Items]
Revenue		259.3	492.4	838.7	827.9
Operating (loss) income		4	25.2	(7.1)	(8.4)
Expenditures for long-lived assets		13.9	15.9	25.5	30.1
Depreciation and amortization		31.4	27.9	94	103.5
Assets				1,088.7	812.2
Intersegment Eliminations [Member]
Segment Reporting Information [Line Items]
Revenue		(8.7)	(17.9)	(24.3)	(26.2)
Intersegment Eliminations [Member] | Sales [Member]
Segment Reporting Information [Line Items]
Revenue		8.7	17.9	24.3	26.2
Intersegment Eliminations [Member] | Network [Member]
Segment Reporting Information [Line Items]
Revenue		6.5	13.1	16.4	19.3
Intersegment Eliminations [Member] | IT Services and Hardware [Member]
Segment Reporting Information [Line Items]
Revenue		2.2	4.8	7.9	6.9
Corporate, Non-Segment [Member]
Segment Reporting Information [Line Items]
Operating (loss) income		(6.8)	(75.8)	(22.9)	(32.7)
Expenditures for long-lived assets		1,620.7	0	0.2	0.1
Depreciation and amortization		$ 0.2	$ 0.1	0.3	0.3
Corporate and Elimination [Member]
Segment Reporting Information [Line Items]
Assets				$ 125.7	$ 404.9
[1] Includes cost of acquisitions in the years ended December 31, 2023 and 2022 and in the Predecessor and Successor periods in 2021 and the purchase of perpetual licenses in the year ended December 31, 2022.

Supplemental Cash Flow Inform_3

Supplemental Cash Flow Information - Schedule of Supplemental Cash Flow Information (Details) - USD ($) $ in Millions	4 Months Ended	8 Months Ended	12 Months Ended
	Dec. 31, 2021	Sep. 07, 2021	Dec. 31, 2023	Dec. 31, 2022
Supplemental Cash Flow Information [Abstract]
Capitalized interest expense	$ 0.6	$ 1.3	$ 8.2	$ 3.1
Cash paid for:
Interest	45.7	89.9	157	84.6
Income taxes, net of refunds	3.3	3.8	6.6	6.4
Noncash investing and financing activities:
Acquisition of property by assuming debt and other financing arrangements	5.8	3.8	7.4	10.5
Acquisition of property on account	$ 51.2	$ 54.9	$ 93.7	$ 79.1

Subsequent Events - Narrative (

Subsequent Events - Narrative (Details) $ in Millions	Feb. 02, 2024 USD ($)
Subsequent Event [Member] | TowerBrook Capital Partners [Member]
Subsequent Event [Line Items]
Purchase price	$ 670

Schedule II - Valuation and Q_2

Schedule II - Valuation and Qualifying Accounts (Details) - USD ($) $ in Millions	4 Months Ended	8 Months Ended	12 Months Ended
	Dec. 31, 2021	Sep. 07, 2021	Dec. 31, 2023	Dec. 31, 2022	Sep. 08, 2021
SEC Schedule, 12-09, Allowance, Credit Loss [Member]
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning of period					$ 0
Beginning of Period	$ 16.4	$ 23	$ 12	$ 3.6
Charge (Benefit) to Expenses	3.6	2.1	9.1	8.4
(To) From Other Accounts	0	0	0	0
Deductions	0	8.7	3.4	0
End of Period	3.6	16.4	17.7	12
SEC Schedule, 12-09, Valuation Allowance, Deferred Tax Asset
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Beginning of Period	24.4	28.4	15.7	18.4
Charge (Benefit) to Expenses	(6)	0	18.9	(3.8)
(To) From Other Accounts	0	(4)	(1.8)	1.1
Deductions	0	0	0	0
End of Period	$ 18.4	$ 24.4	$ 32.8	$ 15.7