Defined Benefit Plan - Additional Information (Detail) $ in Millions |
3 Months Ended | 9 Months Ended |
|---|---|---|
|
Sep. 30, 2016
USD ($)
|
Sep. 30, 2016
USD ($)
|
|
| Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] | ||
| Unfunded liability | $ 4.6 | $ 4.6 |
| Expected contribution to the Foreign Plan | 0.1 | |
| Arnold | Switzerland [Member] | ||
| Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] | ||
| Contribution to the Foreign Plan | $ 0.1 | $ 0.3 |