Accumulated Other Comprehensive Loss - Reclassifications (Details) - USD ($) $ in Thousands |
3 Months Ended | 9 Months Ended | ||||||
|---|---|---|---|---|---|---|---|---|
Sep. 28, 2019 |
Jun. 29, 2019 |
Mar. 30, 2019 |
Sep. 29, 2018 |
Jun. 30, 2018 |
Mar. 31, 2018 |
Sep. 28, 2019 |
Sep. 29, 2018 |
|
| Reclassification from AOCL | ||||||||
| Income tax expense | $ 10,759 | $ 11,811 | $ 22,948 | $ 21,188 | ||||
| Net income | (31,088) | $ (18,251) | $ (16,791) | (31,988) | $ (7,976) | $ (20,547) | (66,130) | (60,511) |
| Defined Benefit Pension Plan Items | Amount Reclassified from AOCL | ||||||||
| Reclassification from AOCL | ||||||||
| Total before tax | 216 | 184 | 646 | 516 | ||||
| Income tax expense | (63) | (46) | (168) | (129) | ||||
| Net income | 153 | 138 | 478 | 387 | ||||
| Amortization of unrecognized prior service cost | Amount Reclassified from AOCL | ||||||||
| Reclassification from AOCL | ||||||||
| Total before tax | 1 | 2 | ||||||
| Amortization of unrecognized loss | Amount Reclassified from AOCL | ||||||||
| Reclassification from AOCL | ||||||||
| Total before tax | $ 216 | $ 183 | $ 646 | $ 514 | ||||