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Accumulated Other Comprehensive Loss (Details) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 30, 2019 | Mar. 31, 2018
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward] |  |
Beginning balance | $ (14,663) | $ 35,002
Other comprehensive income (loss), net of tax | 1,099 | 209
Ending balance | (18,285) | 22,096
Total Accumulated Other Comprehensive Loss |  |
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward] |  |
Beginning balance | (37,129) | (36,507)
Ending balance | (36,030) | $ (36,298)
Foreign currency, net of tax |  |
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward] |  |
Beginning balance | 660 |
Other comprehensive income (loss), net of tax | 7 |
Ending balance | 667 |
Defined benefit pension plan, net of tax |  |
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward] |  |
Beginning balance | (38,001) |
Other comprehensive income (loss), net of tax | 1,077 |
Ending balance | (36,924) |
Other, net of tax |  |
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward] |  |
Beginning balance | 212 |
Other comprehensive income (loss), net of tax | 15 |
Ending balance | 227 |
Accumulated defined benefit plan adjustment, net gain (loss) attributable to parent |  |
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward] |  |
Reclassification of actuarial loss | 1,100 |
Reclassification of actuarial loss, tax | $ 400 |

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- Definition Amount after tax and reclassification adjustments of other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1A -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=114867106&loc=SL7669619-108580 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 55 -Paragraph 15 -URI http://asc.fasb.org/extlink&oid=109228884&loc=d3e1436-108581 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 1B -Subparagraph (b) -URI http://asc.fasb.org/extlink&oid=114867106&loc=SL7669625-108580 + Details
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