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Accumulated Other Comprehensive Loss - Summary of Accumulated Other Comprehensive Loss (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jul. 03, 2016 | Jun. 28, 2015 | Jul. 03, 2016 | Jun. 28, 2015
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Beginning, balance | $ (82,094) | $ (89,500) | $ (82,407) | $ (89,914)
Pre-tax Activity | 487 | 683 | 997 | 1,358
Tax Effect | (188) | (264) | (385) | (525)
Ending, balance | (81,795) | (89,081) | (81,795) | (89,081)
Foreign Currency Translation Adjustment [Member] |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Beginning, balance | 5 | (5) | (5) | (1)
Pre-tax Activity | (8) | 1 | 7 | (6)
Tax Effect | 2 | (1) | (3) | 2
Ending, balance | (1) | (5) | (1) | (5)
Net Pension Activity [Member] | Actuarial Loss [Member] |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Beginning, balance | (67,788) | (74,378) | (68,243) | (74,867)
Pre-tax Activity | 740 | 795 | 1,481 | 1,591
Tax Effect | (285) | (307) | (571) | (614)
Ending, balance | (67,333) | (73,890) | (67,333) | (73,890)
Net Pension Activity [Member] | Prior Service Costs [Member] |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Beginning, balance | (74) | (94) | (78) | (99)
Pre-tax Activity | 7 | 9 | 14 | 18
Tax Effect | (2) | (3) | (5) | (7)
Ending, balance | (69) | (88) | (69) | (88)
Net Postretirement Benefits Activity [Member] | Actuarial Loss [Member] |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Beginning, balance | (19,465) | (22,319) | (19,825) | (22,759)
Pre-tax Activity | 588 | 718 | 1,175 | 1,435
Tax Effect | (227) | (277) | (454) | (554)
Ending, balance | (19,104) | (21,878) | (19,104) | (21,878)
Net Postretirement Benefits Activity [Member] | Prior Service Costs [Member] |  |  |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |  |  |
Beginning, balance | 5,228 | 7,296 | 5,744 | 7,812
Pre-tax Activity | (840) | (840) | (1,680) | (1,680)
Tax Effect | 324 | 324 | 648 | 648
Ending, balance | $ 4,712 | $ 6,780 | $ 4,712 | $ 6,780

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Accumulated change in equity from transactions and other events and circumstances from non-owner sources, net of tax effect, at period end. Excludes Net Income (Loss), and accumulated changes in equity from transactions resulting from investments by owners and distributions to owners. Includes foreign currency translation items, certain pension adjustments, unrealized gains and losses on certain investments in debt and equity securities, other than temporary impairment (OTTI) losses related to factors other than credit losses on available-for-sale and held-to-maturity debt securities that an entity does not intend to sell and it is not more likely than not that the entity will be required to sell before recovery of the amortized cost basis, as well as changes in the fair value of derivatives related to the effective portion of a designated cash flow hedge. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 11 -URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e637-108580 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14 -URI http://asc.fasb.org/extlink&oid=66004124&loc=d3e681-108580 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=66004124&loc=SL7669686-108580 + Details
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- Definition Amount before tax of other comprehensive income (loss) attributable to parent entity. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 50 -Paragraph 1A -Subparagraph (c)(3) -URI http://asc.fasb.org/extlink&oid=64809438&loc=SL4573702-111684 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 20 -URI http://asc.fasb.org/extlink&oid=68079674&loc=SL4569643-111683 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 810 -SubTopic 10 -Section 45 -Paragraph 19 -URI http://asc.fasb.org/extlink&oid=68079674&loc=SL4569616-111683 + Details
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