Supplemental Balance Sheet Data - Schedule of Depreciation Expense (Details) - USD ($) $ in Millions	1 Months Ended	2 Months Ended	3 Months Ended	5 Months Ended	6 Months Ended
	Jun. 30, 2019	Jun. 02, 2019	Jun. 30, 2018	Jun. 02, 2019	Jun. 30, 2018
Property, Plant and Equipment [Line Items]
Depreciation expense	$ 1.8	$ 3.7	$ 5.5	$ 9.6	$ 11.2
Cost of sales
Property, Plant and Equipment [Line Items]
Depreciation expense	1.7	3.4	5.3	8.9	10.6
Depreciation and amortization expense
Property, Plant and Equipment [Line Items]
Depreciation expense	$ 0.1	$ 0.3	$ 0.2	$ 0.7	$ 0.6