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Business Combinations, Goodwill and Other Intangible Assets Business Combinations, Earn-out Payments (Details) $ in Millions	Mar. 31, 2022 USD ($) acquisition	Dec. 31, 2021 USD ($) acquisition
Summary of Earn-out Payments [Line Items]
Number Of Acquisitions Subject To Potential Earn Out Payments Provisions | acquisition	20	19
Business Combination, Contingent Consideration Arrangements, Range of Outcomes, High, Value	$ 143.0	$ 149.9
Business Combination, Contingent Consideration, Liability, Current	51.2	45.8
Business Combination, Contingent Consideration, Liability, Noncurrent	55.4	66.3
Finite-Lived Intangible Assets, Net	829.7
Fair Value, Recurring [Member] | Fair Value, Inputs, Level 3 [Member]
Summary of Earn-out Payments [Line Items]
Business Combination, Contingent Consideration, Liability, Current	33.8	39.0
Business Combination, Contingent Consideration, Liability, Noncurrent	$ 45.7	$ 45.1

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Business Combination, Contingent Consideration Arrangements, Range of Outcomes, High, Value

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Amount of liability recognized arising from contingent consideration in a business combination, expected to be settled within one year or the normal operating cycle, if longer.

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