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Restructuring Costs - Additional Information (Detail) $ in Millions | 3 Months Ended | 9 Months Ended | 12 Months Ended
--- | --- | --- | ---
Dec. 31, 2015 USD ($) | Sep. 30, 2015 USD ($) | Jun. 30, 2015 USD ($) | Dec. 31, 2015 Employee | Dec. 31, 2016 | Dec. 31, 2015 USD ($)
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Workforce reduction, number of individuals | Employee |  |  |  | 160 |  |
Workforce reduction, recognized aggregate charge | $ 0.2 | $ 0.4 | $ 21.1 |  |  | $ 21.7
Accrued severance costs expected to be paid |  |  |  |  | 2017-03 |
Cost Of Sales |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Workforce reduction, recognized aggregate charge |  |  |  |  |  | 10.8
Selling, General and Administrative Expense |  |  |  |  |  |
Restructuring Cost And Reserve [Line Items] |  |  |  |  |  |
Workforce reduction, recognized aggregate charge |  |  |  |  |  | $ 10.9

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- Definition Date through which accrued severance costs will be paid. + References No definition available. + Details
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- Definition Workforce reduction, recognized aggregate charge for voluntary and involuntary termination. + References No definition available. + Details
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- Definition The number of positions eliminated during the period as a result of restructuring activities. + References No definition available. + Details
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- Details
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