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Benefit Plans - Expected Weighted Average Long-Term Rate of Return (Detail) | 12 Months Ended |
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Jan. 01, 2017 | Jan. 03, 2016
Defined Benefit Plan Disclosure [Line Items] |  |
Target Allocation 2017 | 100.00% |
Percentage of Plan Assets at Fiscal Year-End | 100.00% | 100.00%
Weighted Average Expected Long-Term Rate of Return - 2016 | 6.50% |
U.S. Large Capitalization Equity Securities [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target Allocation 2017 | 40.00% |
Percentage of Plan Assets at Fiscal Year-End | 41.00% | 40.00%
Weighted Average Expected Long-Term Rate of Return - 2016 | 3.30% |
U.S. Small/Mid-Capitalization Equity Securities [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target Allocation 2017 | 5.00% |
Percentage of Plan Assets at Fiscal Year-End | 5.00% | 5.00%
Weighted Average Expected Long-Term Rate of Return - 2016 | 0.40% |
International Equity Securities [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target Allocation 2017 | 15.00% |
Percentage of Plan Assets at Fiscal Year-End | 15.00% | 15.00%
Weighted Average Expected Long-Term Rate of Return - 2016 | 1.30% |
Debt Securities [Member] |  |
Defined Benefit Plan Disclosure [Line Items] |  |
Target Allocation 2017 | 40.00% |
Percentage of Plan Assets at Fiscal Year-End | 39.00% | 40.00%
Weighted Average Expected Long-Term Rate of Return - 2016 | 1.50% |

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- Definition An assumption as to the rate of return on plan assets reflecting the average rate of earnings expected on the funds invested or to be invested to provide for the benefits included in the benefit obligation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Glossary Expected Long-Term Rate of Return on Plan Assets -URI http://asc.fasb.org/extlink&oid=6512046 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (k)(3) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
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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 Target allocation of investments of this type to total plan assets presented on a weighted average basis. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (c)(i) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e2446-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(i) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
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- Definition Percentage of fair value of investments (categorized by debt securities, equity securities, real estate and other plan assets) to the fair value of plan assets held. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 5 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e2446-114920 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 715 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (d)(1) -URI http://asc.fasb.org/extlink&oid=65897934&loc=d3e1928-114920 + Details
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