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Accrued Expenses and Other Current Liabilities - Product Warranty Liability (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Movement in Standard and Extended Product Warranty Accrual, Increase (Decrease) [Roll Forward]        
Product warranty liability at beginning of period $ 8.1 $ 6.6 $ 8.5 $ 6.4
Warranty expense 3.1 3.3 8.3 8.6
Warranty claims settled (4.2) (3.1) (9.8) (8.2)
Product warranty liability at the end of period $ 7.0 $ 6.8 $ 7.0 $ 6.8