Amount of liability recognized arising from contingent consideration in a business combination.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Amount of cash outflow, not made soon after acquisition date of business combination, to settle contingent consideration liability up to amount recognized at acquisition date, including, but not limited to, measurement period adjustment and less amount paid soon after acquisition date.

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Fair Value of Financial Instruments - Additional Information (Detail) - USD ($) $ in Millions	3 Months Ended
	Jun. 30, 2017	Mar. 31, 2018	Nov. 30, 2017	Feb. 29, 2016
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Payment for earnout amount	$ 2.0
Equity interest acquired		93.80%	93.80%
Convertible Notes
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Debt instrument, interest rate		0.25%
Other Liabilities \| ASC 815-10, Derivatives and Hedging
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Equity method Investment, noncurrent liabilities			$ 2.2
EpiWorks \| Upon Achievement of Financial and Operational Targets For Capacity Wafers Output and Gross Margin \| Maximum
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Business acquisitions, contingent consideration				$ 6.0
IPI \| Upon Achievement of Financial And Transitional Objectives Relating to Finance Information Technology And Human Resources \| Maximum
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]
Business acquisitions, contingent consideration	$ 2.5