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Share-based Payments (Compensation Costs) (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |
Total compensation costs related to share based payments | $ 26.0 | $ 20.0 | $ 41.6 | $ 35.1
Selling, general and administrative: |  |  |  |
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |
Stock option compensation expense | 0.1 | 0.8 | 0.5 | 2.3
Equity-classified share units | 23.5 | 17.3 | 35.1 | 25.6
Liability-classified share units | 0.5 | 0.2 | 1.3 | 1.5
Employee share purchase plan | 1.7 | 1.7 | 4.3 | 4.6
Total compensation costs related to share based payments | 25.8 | 20.0 | 41.2 | 34.0
Acquisition-related and integration costs: |  |  |  |
Share-Based Payment Arrangement, Expensed and Capitalized, Amount [Line Items] |  |  |  |
Acceleration of share-based payments expense | 0.0 | 0.0 | 0.0 | 0.9
Share-based continuing employment costs | 0.2 | 0.0 | 0.4 | 0.2
Total compensation costs related to share based payments | $ 0.2 | $ 0.0 | $ 0.4 | $ 1.1

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- Definition Amount of acceleration of share-based payments expense in relation to business combinations. + References No definition available. + Details
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- Definition For transactions that are recognized separately from the acquisition of assets and assumptions of liabilities in the business combination, such as related to pre-existing relationships with the acquiree, this element represents the disclosure of the amount of acquisition related share based continuing employment costs which have been expensed. + References No definition available. + Details
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- Definition Compensation Expense related to the company's contribution to employee stock purchase plan (ESPP). + References No definition available. + Details
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- Definition Compensation expense representing accretion of the fair value of the contingently redeemable performance share units on the grant or modification date over the remaining service period. + References No definition available. + Details
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- Definition The expense that accounts for the value of liability-classified share units distributed to employees as compensation. + References No definition available. + Details
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- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SAB Topic 14.F) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479830/718-10-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 718 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480429/718-10-50-2 + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Amount of noncash expense for option under share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 45 -Paragraph 28 -Subparagraph (b) -SubTopic 10 -Topic 230 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482740/230-10-45-28 + Details
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- Details
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