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Significant Accounting Policies - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Advertising Expense $ 10.6 $ 8.6 $ 9.0
Research and Development Expense 119.7 100.7 108.3
Accounts Receivable, Allowance for Credit Loss 13.2 11.2 $ 10.3
Accounts Receivable, Credit Loss Expense (Reversal) 5.2 3.1  
Accounts Receivable, Allowance for Credit Loss, Writeoff (2.5) (0.5)  
Accounts Receivable, Allowance for Credit Loss, Recovery (1.0) (1.0)  
Accounts Receivable, Allowance for Credit Loss, Period Increase (Decrease) 0.3 (0.7)  
SEC Schedule, 12-09, Allowance, Uncollectible Customer's Liability for Acceptances [Member]      
SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount $ 4.2 $ 4.0