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Significant Accounting Policies - Changes in Product Warranty Accruals (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Company's accrual for product warranty claims      
Beginning balance $ 43.3 $ 42.3 $ 57.1
Charges to expense 27.5 38.1 32.5
Settlements (35.6) (37.1) (47.3)
Ending balance $ 35.2 $ 43.3 $ 42.3