Employee Benefit Plans - Schedule of Assumptions Used (Detail) - Foreign Pension Plans, Defined Benefit |
Dec. 31, 2016 |
Dec. 31, 2015 |
|---|---|---|
| Pension Plans Postretirement And Other Employee Benefits [Line Items] | ||
| Discount rate | 2.10% | 2.60% |
| Increase in future compensation levels | 2.60% | 2.90% |