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Supplemental Balance Sheet Data and Cash Flow Information - Schedule of Depreciation Expense (Details) - USD ($)
$ in Millions
3 Months Ended 4 Months Ended 5 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2019
Jun. 02, 2019
Sep. 30, 2020
Property, Plant and Equipment [Line Items]          
Depreciation $ 8.6 $ 5.5 $ 7.4 $ 9.6 $ 24.0
Cost of goods sold          
Property, Plant and Equipment [Line Items]          
Depreciation 8.0 5.1 6.9 8.9 22.4
Depreciation and amortization expense          
Property, Plant and Equipment [Line Items]          
Depreciation $ 0.6 $ 0.4 $ 0.5 $ 0.7 $ 1.6