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Accrued Expenses and Other Current Liabilities - Product Warranty Liability (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Movement in Standard and Extended Product Warranty Accrual, Increase (Decrease) [Roll Forward]        
Product warranty liability at beginning of period $ 6.7 $ 8.3 $ 6.7 $ 8.5
Warranty expense 2.3 2.7 4.9 5.2
Warranty claims settled (2.5) (2.9) (5.1) (5.6)
Product warranty liability at the end of period $ 6.5 $ 8.1 $ 6.5 $ 8.1