Employee Benefit Plans - Weighted Average Rate Assumptions Used in Determining Net Periodic Pension Cost (Detail) |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2015 |
Dec. 31, 2014 |
Dec. 31, 2013 |
|
| Foreign Pension Plans, Defined Benefit | |||
| Pension Plans Postretirement And Other Employee Benefits [Line Items] | |||
| Discount rate | 2.50% | 3.80% | 3.70% |
| Increase in future compensation levels | 2.60% | 2.70% | 3.10% |
| Long-term return on plan assets | 4.60% | 5.00% | 5.00% |
| United States Pension Plans of US Entity, Defined Benefit | |||
| Pension Plans Postretirement And Other Employee Benefits [Line Items] | |||
| Discount rate | 3.80% | 4.50% | 3.60% |
| Long-term return on plan assets | 7.50% | 7.50% | 10.00% |