Pensions and Other Post-employment Benefits (Detail) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||
---|---|---|---|---|
Sep. 29, 2017 |
Sep. 30, 2016 |
Sep. 29, 2017 |
Sep. 30, 2016 |
|
Pension Benefits [Member] | ||||
Components of net periodic benefit cost | ||||
Service cost | $ 2,106 | $ 1,946 | $ 6,188 | $ 5,838 |
Interest cost | 2,372 | 2,595 | 7,098 | 7,785 |
Expected return on plan assets | (3,678) | (3,488) | (11,007) | (10,464) |
Amortization of prior service benefit | (42) | (115) | (236) | (345) |
Amortization of net loss | 1,623 | 1,431 | 4,821 | 4,292 |
Net periodic benefit cost (benefit) | 2,381 | 2,369 | 6,864 | 7,106 |
Other Benefits [Member] | ||||
Components of net periodic benefit cost | ||||
Service cost | 23 | 26 | 69 | 77 |
Interest cost | 99 | 140 | 297 | 422 |
Expected return on plan assets | 0 | 0 | 0 | 0 |
Amortization of prior service benefit | (374) | (374) | (1,122) | (1,122) |
Amortization of net loss | 0 | 0 | 0 | 0 |
Net periodic benefit cost (benefit) | $ (252) | $ (208) | $ (756) | $ (623) |