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Benefits Expected to be Paid from Plans Assets (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2016 | Jan. 02, 2016 | Jan. 03, 2015
Pension plans |  |  |  |
Schedule of Pension and Other Postretirement Benefits Expected Benefit Payments [Line Items] |  |  |  |
Benefits paid |  | $ 25,130 | $ 25,014 |
2017 |  | 33,675 |  |
2018 |  | 32,349 |  |
2019 |  | 31,157 |  |
2020 |  | 29,762 |  |
2021 |  | 28,916 |  |
2022 – 2026 |  | 128,858 |  |
Pension plans | Includes Plan No 1 and No 2 One Time Voluntary Lump Sum Offer |  |  |  |
Schedule of Pension and Other Postretirement Benefits Expected Benefit Payments [Line Items] |  |  |  |
Benefits paid | [1] |  |  | $ 75,459
Pension plans | Includes Plan No 1 and No 2 Single Lump Sum |  |  |  |
Schedule of Pension and Other Postretirement Benefits Expected Benefit Payments [Line Items] |  |  |  |
Benefits paid | [2] | 40,864 |  |
Postretirement Benefit Plans |  |  |  |
Schedule of Pension and Other Postretirement Benefits Expected Benefit Payments [Line Items] |  |  |  |
Benefits paid |  | 1,125 | 898 |
Postretirement Benefit Plans | Employer Gross Contribution |  |  |  |
Schedule of Pension and Other Postretirement Benefits Expected Benefit Payments [Line Items] |  |  |  |
Benefits paid |  | 841 | $ 674 | $ 478
2017 |  | 692 |  |
2018 |  | 745 |  |
2019 |  | 735 |  |
2020 |  | 677 |  |
2021 |  | 661 |  |
2022 – 2026 |  | $ 3,291 |  |
[1] | Includes $48.4 million and $2.0 million from Plan No. 1 and Plan No. 2, respectively paid in December 2014, associated with a one-time voluntary lump sum offer.
[2] | Includes $15.7 million and $1.6 million from Plan No. 1 and Plan No. 2, respectively, paid as lump sums. The plans were amended effective January 1, 2016 to allow participants not yet receiving benefit payments to elect to receive their benefit as a single lump sum.

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- Definition Schedule of Pension and Other Postretirement Benefits Expected Benefit Payments [Line Items] + References No definition available. + Details
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- Definition The amount of payments made for which participants are entitled under a pension plan, including pension benefits, death benefits, and benefits due on termination of employment. Also includes payments made under a postretirement benefit plan, including prescription drug benefits, health care benefits, life insurance benefits, and legal, educational and advisory services. This item represents a periodic decrease to the plan obligations and a decrease to plan assets. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 60 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6414203&loc=d3e39716-114964 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Benefits -URI http://asc.fasb.org/extlink&oid=49170737 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a)(6) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Postretirement Benefits -URI http://asc.fasb.org/extlink&oid=6521376 Reference 5: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (b)(5) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
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- Definition Amount of benefits from a defined benefit plan expected to be paid in the five fiscal years after the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
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- Definition Amount of benefits from a defined benefit plan expected to be paid in the next fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
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- Definition Amount of benefits from a defined benefit plan expected to be paid in the fifth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
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- Definition Amount of benefits from a defined benefit plan expected to be paid in the fourth fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
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- Definition Amount of benefits from a defined benefit plan expected to be paid in the third fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
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- Definition Amount of benefits from a defined benefit plan expected to be paid in the second fiscal year following the latest fiscal year. Excludes interim and annual periods when interim periods are reported on a rolling approach, from latest balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (f) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
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