Weighted Average Assumptions to Determine Net Periodic Benefit Cost (Detail) |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2016 |
Dec. 31, 2015 |
Dec. 31, 2014 |
|
| U.S. [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Discount rate | 4.10% | 3.77% | 4.04% |
| Expected long-term return of plan assets | 7.25% | 7.25% | 7.25% |
| Non-U.S. [Member] | |||
| Defined Benefit Plan Disclosure [Line Items] | |||
| Discount rate | 3.46% | 3.22% | 4.26% |
| Expected long-term return of plan assets | 6.34% | 6.80% | 6.77% |
| Rate of compensation increase | 4.65% | 4.46% | 4.80% |