CONDENSED CONSOLIDATED AND COMBINED STATEMENTS OF OPERATIONS - USD ($) $ in Millions |
3 Months Ended | 6 Months Ended | 9 Months Ended | 12 Months Ended | ||||
|---|---|---|---|---|---|---|---|---|
Mar. 31, 2024 |
Sep. 30, 2023 |
Jun. 30, 2023 |
Mar. 31, 2023 |
Jun. 30, 2023 |
Sep. 30, 2023 |
Dec. 31, 2023 |
Dec. 31, 2022 |
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| Income Statement [Abstract] | ||||||||
| Revenues | $ 662.1 | $ 713.8 | $ 725.1 | $ 693.9 | $ 1,419.0 | $ 2,132.8 | $ 2,842.5 | $ 2,837.0 |
| Costs and expenses: | ||||||||
| Direct costs, exclusive of depreciation and amortization (including costs incurred from related parties of $0.0 and $21.7 during the three months ended March 31, 2024 and 2023, respectively) | 554.2 | 563.8 | 568.7 | 541.5 | 1,110.2 | 1,674.0 | 2,251.9 | 2,112.6 |
| Selling, general and administrative expenses, exclusive of depreciation and amortization | 120.1 | 106.8 | 97.8 | 116.8 | 214.6 | 321.4 | 448.1 | 416.1 |
| Depreciation and amortization | 21.9 | 22.8 | 23.4 | 20.9 | 44.3 | 67.1 | 89.3 | 85.5 |
| Restructuring and other charges | 3.3 | 10.1 | 3.6 | 0.6 | 4.2 | 14.3 | 21.2 | 25.9 |
| Total costs and expenses | 699.5 | 703.5 | 693.5 | 679.8 | 1,373.3 | 2,076.8 | 2,810.5 | 2,649.9 |
| Operating income (loss) | (37.4) | 10.3 | 31.6 | 14.1 | 45.7 | 56.0 | 32.0 | 187.1 |
| Other income (expense): | ||||||||
| Interest income (expense) | (34.3) | (34.6) | (0.7) | 0.1 | (0.6) | (35.2) | (69.7) | (0.2) |
| Foreign exchange gain (loss) | (5.3) | (1.2) | 5.2 | (5.2) | 0.0 | (1.2) | 0.3 | (2.0) |
| Other, net | 1.3 | 3.6 | 0.5 | 0.5 | 1.0 | 4.6 | 6.9 | 2.1 |
| Income (loss) from continuing operations before income taxes | (75.7) | (21.9) | 36.6 | 9.5 | 46.1 | 24.2 | (30.5) | 187.0 |
| Provision for income taxes | 4.1 | (5.8) | 11.6 | 1.5 | 13.1 | 7.3 | 1.2 | 41.1 |
| Income (loss) from continuing operations | (79.8) | (16.1) | 25.0 | 8.0 | 33.0 | 16.9 | (31.7) | 145.9 |
| Income (loss) from discontinued operations, net of tax | (21.2) | 4.5 | ||||||
| Net income (loss) | $ (101.0) | $ (14.0) | $ 30.8 | $ 12.5 | $ 43.3 | $ 29.3 | $ (25.2) | $ 186.2 |
| Earnings (loss) per common share | ||||||||
| Basic earnings (loss) per share continuing operations (in dollars per share) | $ (0.89) | $ (0.18) | $ 0.28 | $ 0.09 | $ 0.37 | $ 0.19 | $ (0.36) | $ 1.64 |
| Basic earnings (loss) per share discontinued operations (in dollars per share) | (0.24) | 0.02 | 0.07 | 0.05 | 0.12 | 0.14 | 0.07 | 0.45 |
| Basic earnings (loss) per share (in dollars per share) | (1.13) | (0.16) | 0.35 | 0.14 | 0.49 | 0.33 | (0.29) | 2.09 |
| Diluted earnings (loss) per share continuing operations (in dollars per share) | (0.89) | (0.18) | 0.28 | 0.09 | 0.37 | 0.19 | (0.36) | 1.64 |
| Diluted earnings (loss) per share discontinued operations (in dollars per share) | (0.24) | 0.02 | 0.07 | 0.05 | 0.12 | 0.14 | 0.07 | 0.45 |
| Diluted earnings (loss) per share (in dollars per share) | $ (1.13) | $ (0.16) | $ 0.35 | $ 0.14 | $ 0.49 | $ 0.33 | $ (0.29) | $ 2.09 |
| X | ||||||||||
- Definition Cost of product sold and service rendered, excluding depreciation, depletion, and amortization. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Total costs of sales and operating expenses for the period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- References No definition available.
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- Definition The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- References No definition available.
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- Definition The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount, before tax, of realized and unrealized gain (loss) from foreign currency transaction. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount after tax of income (loss) from continuing operations attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of income (loss) from continuing operations, including income (loss) from equity method investments, before deduction of income tax expense (benefit), and income (loss) attributable to noncontrolling interest. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The amount of net income (loss) from continuing operations per each share of common stock or unit outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The amount of net income (loss) derived from continuing operations during the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount after tax of income (loss) from a discontinued operation attributable to the parent. Includes, but is not limited to, the income (loss) from operations during the phase-out period, gain (loss) on disposal, gain (loss) for reversal of write-down (write-down) to fair value, less cost to sell, and adjustments to a prior period gain (loss) on disposal. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Per basic share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation and gain (loss) from the disposal of the discontinued operation. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Per diluted share amount, after tax, of income (loss) from the day-to-day business activities of the discontinued operation and gain (loss) from the disposal of the discontinued operation. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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- Definition Amount of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The net amount of operating interest income (expense). Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The portion of profit or loss for the period, net of income taxes, which is attributable to the parent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References No definition available.
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- Definition The net result for the period of deducting operating expenses from operating revenues. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of income (expense) related to nonoperating activities, classified as other. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, after cash payment, of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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