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Accumulated Other Comprehensive Income (Loss) - Changes in AOCI by Component (Details) - USD ($) $ in Thousands | 3 Months Ended
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Mar. 30, 2019 | Mar. 31, 2018
Changes in accumulated other comprehensive income [Roll Forward] |  |
Balance at beginning of year | $ 563,260 |
Total other comprehensive income, net | 7,115 | $ 3,063
Balance at end of year | 581,922 |
Cumulative Translation Adjustment [Member] |  |
Changes in accumulated other comprehensive income [Roll Forward] |  |
Balance at beginning of year | (54,257) | (38,163)
Other comprehensive income (loss) before reclassifications | 5,853 | 4,800
Amounts reclassified from AOCI | 0 | 0
Total other comprehensive income, net | 5,853 | 4,800
Reclassification of stranded effects of the Act |  | 0
Balance at end of year | (48,404) | (33,363)
Unrealized (Loss) Gain on Derivatives [Member] |  |
Changes in accumulated other comprehensive income [Roll Forward] |  |
Balance at beginning of year | (214) | 847
Other comprehensive income (loss) before reclassifications | 1,336 | (770)
Amounts reclassified from AOCI | (79) | (292)
Total other comprehensive income, net | 1,257 | (1,062)
Reclassification of stranded effects of the Act |  | 112
Balance at end of year | 1,043 | (103)
Pension/OPEB Liability Adjustment [Member] |  |
Changes in accumulated other comprehensive income [Roll Forward] |  |
Balance at beginning of year | (24,967) | (20,610)
Other comprehensive income (loss) before reclassifications | (489) | (570)
Amounts reclassified from AOCI | 243 | 119
Total other comprehensive income, net | (246) | (451)
Reclassification of stranded effects of the Act |  | (1,018)
Balance at end of year | (25,213) | (22,079)
Attributable to Unconsolidated Affiliates [Member] |  |
Changes in accumulated other comprehensive income [Roll Forward] |  |
Balance at beginning of year | (354) | 6,870
Other comprehensive income (loss) before reclassifications | 47 | (401)
Amounts reclassified from AOCI | 0 | 0
Total other comprehensive income, net | 47 | (401)
Reclassification of stranded effects of the Act |  | 1,462
Balance at end of year | (307) | 7,931
Total [Member] |  |
Changes in accumulated other comprehensive income [Roll Forward] |  |
Balance at beginning of year | (79,792) | (51,056)
Other comprehensive income (loss) before reclassifications | 6,747 | 3,059
Amounts reclassified from AOCI | 164 | (173)
Total other comprehensive income, net | 6,911 | 2,886
Reclassification of stranded effects of the Act |  | 556
Balance at end of year | $ (72,881) | $ (47,614)

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- Definition Tax Cuts and Jobs Act of 2017, Reclassification from AOCI to Retained Earnings + References No definition available. + Details
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