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Balance Sheet Details - Accounts Payable and Accrued Liabilities (Detail) - USD ($) $ in Millions	1 Months Ended
	Feb. 28, 2019	Mar. 31, 2019	Dec. 31, 2018
Accounts Payable and Accrued Liabilities [Abstract]
Accounts payable trade		$ 90.3	$ 75.5
Accrued tax, audit, and legal fees		12.3	11.7
Accrued rebates		40.9	36.1
Accrued warranty		6.0	6.8
Restructuring reserve		1.1	0.0
Other accrued liabilities		18.5	17.0
Total accounts payable and accrued liabilities		$ 169.1	$ 147.1
Restructuring charges	$ 9.0

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Carrying value as of the balance sheet date of accrued current tax, audit and legal fees.

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Pharmacy Rebates

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Amount of liabilities incurred to vendors for goods and services received, and accrued liabilities classified as other, payable within one year or the normal operating cycle, if longer.

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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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Amount of expenses incurred but not yet paid classified as other, due within one year or the normal operating cycle, if longer.

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Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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Carrying amount (including both current and noncurrent portions of the accrual) as of the balance sheet date pertaining to a specified type of cost associated with exit from or disposal of business activities or restructuring pursuant to a duly authorized plan.

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Amount as of the balance sheet date of the aggregate standard product warranty liability. Does not include the balance for the extended product warranty liability.

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