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Restructuring and Acquisition Charges (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Restructuring Cost and Reserve [Line Items] |  |  |
Share-based Payment Arrangement, Noncash Expense | $ 3.4 | $ 6.1 | $ 17.8
Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability | (4.4) | (3.3) | 2.6
Restructuring and acquisition charges | 100.7 | 104.8 | 84.7
Employee Severance [Member] |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring Charges | 62.1 | 44.5 | 14.3
Contract Termination and Other Charges |  |  |
Restructuring Cost and Reserve [Line Items] |  |  |
Restructuring Charges | $ 39.6 | $ 57.5 | $ 50.0

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