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Accumulated Other Comprehensive Income (Loss) - Summary of Accumulated Other Comprehensive Income (Loss) (Detail) - USD ($) $ in Thousands | 3 Months Ended
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Apr. 02, 2017 | Apr. 03, 2016
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |
Beginning Balance | $ 363,024 | $ 322,432
Pre-tax Activity | 720 | 510
Tax Effect | (278) | (197)
Ending Balance | 360,390 | 315,115
Foreign Currency Translation Adjustment [Member] |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |
Beginning Balance | (11) | (5)
Pre-tax Activity | 4 | 15
Tax Effect | (2) | (5)
Ending Balance | (9) | 5
Accumulated Other Comprehensive Loss [Member] |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |
Beginning Balance | (92,897) | (82,407)
Ending Balance | (92,455) | (82,094)
Net Pension Activity [Member] | Actuarial Loss [Member] |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |
Beginning Balance | (72,393) | (68,243)
Pre-tax Activity | 807 | 741
Tax Effect | (311) | (286)
Ending Balance | (71,897) | (67,788)
Net Pension Activity [Member] | Prior Service Costs [Member] |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |
Beginning Balance | (61) | (78)
Pre-tax Activity | 7 | 7
Tax Effect | (3) | (3)
Ending Balance | (57) | (74)
Net Postretirement Benefits Activity [Member] | Actuarial Loss [Member] |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |
Beginning Balance | (24,111) | (19,825)
Pre-tax Activity | 648 | 587
Tax Effect | (250) | (227)
Ending Balance | (23,713) | (19,465)
Net Postretirement Benefits Activity [Member] | Prior Service Costs [Member] |  |
Accumulated Other Comprehensive Income (Loss) [Line Items] |  |
Beginning Balance | 3,679 | 5,744
Pre-tax Activity | (746) | (840)
Tax Effect | 288 | 324
Ending Balance | $ 3,221 | $ 5,228

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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 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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