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 ($)
|
Dec. 31, 2015
Employee
|
Dec. 31, 2015
USD ($)
|
|
| 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 | 2018-09 | ||||
| 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 | ||||