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Balance Sheet Details - Accounts Payable and Accrued Liabilities (Detail) - USD ($) $ in Millions	5 Months Ended
	Jun. 30, 2019	Sep. 30, 2019	Dec. 31, 2018
Accounts Payable and Accrued Liabilities [Abstract]
Accounts payable trade		$ 101.4	$ 75.5
Accrued tax, audit, and legal fees		20.3	11.7
Accrued rebates		74.6	36.1
Accrued warranty		7.5	6.8
Restructuring reserve		0.7	0.0
Other accrued liabilities		27.9	17.0
Total accounts payable and accrued liabilities		$ 232.4	$ 147.1
Restructuring charges	$ 8.0

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Carrying value as of the balance sheet date of obligations incurred (and for which invoices have typically been received) and payable to vendors for goods and services received that are used in an entity's business. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer).

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