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Share-based Payments (Compensation Costs) (Details) - USD ($) $ in Millions | 3 Months Ended
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Mar. 31, 2023 | Mar. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |
Total compensation costs related to share based payments | $ 12.7 | $ 7.5
Selling, General and Administrative Expenses [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |
Stock option compensation expense | 2.6 | 2.6
Equity-classified share units | 3.5 | 2.9
Liability-classified share units |  | (0.8)
Employee share purchase plan - employer contributions | 0.6 | 0.7
Total compensation costs related to share based payments | 6.7 | 5.4
Acquisition-related Costs [Member] |  |
Share-based Compensation Arrangement by Share-based Payment Award, Compensation Cost [Line Items] |  |
Acceleration of share-based payments expense | 5.0 |
Share based continuing employment costs | 1.0 | 2.1
Total compensation costs related to share based payments | $ 6.0 | $ 2.1

X
- 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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X
- 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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X
- 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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Balance Type: | debit
Period Type: | duration

X
- Definition Amount of expense for award under share-based payment arrangement. Excludes amount capitalized. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (h)(1)(i) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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X
- 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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X
- Definition Amount of noncash expense for option under share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (b) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585 + Details
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- Details
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- Details
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Balance Type: |
Period Type: |