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Plan Asset and Target Asset Allocations (Detail) | 12 Months Ended |
--- | --- | ---
Dec. 31, 2016 | Jan. 02, 2016
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items] |  |  |
Percentage of Plan Assets at the Measurement Date |  | 100.00% | 100.00%
Equity Securities |  |  |
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items] |  |  |
Target Allocation 2017, Minimum |  | 40.00% |
Target Allocation 2017, Maximum |  | 60.00% |
Percentage of Plan Assets at the Measurement Date |  | 51.10% | 55.60%
Fixed Income Securities |  |  |
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items] |  |  |
Target Allocation 2017, Minimum |  | 10.00% |
Target Allocation 2017, Maximum |  | 40.00% |
Percentage of Plan Assets at the Measurement Date |  | 9.30% | 10.00%
Real Estate Funds |  |  |
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items] |  |  |
Target Allocation 2017, Minimum |  | 0.00% |
Target Allocation 2017, Maximum |  | 25.00% |
Percentage of Plan Assets at the Measurement Date |  | 5.20% | 4.70%
Other Diversifying Strategies |  |  |
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items] |  |  |
Target Allocation 2017, Minimum | [1] | 0.00% |
Target Allocation 2017, Maximum | [1] | 40.00% |
Percentage of Plan Assets at the Measurement Date | [1] | 33.50% | 28.70%
Short Term Investments And Cash |  |  |
Schedule of Defined Benefit Plan Asset Allocation Targets [Line Items] |  |  |
Target Allocation 2017, Minimum |  | 0.00% |
Target Allocation 2017, Maximum |  | 25.00% |
Percentage of Plan Assets at the Measurement Date |  | 0.90% | 1.00%
[1] | Includes absolute return funds, hedged equity funds, and guaranteed insurance contracts.

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- Definition Target allocation maximum percentage 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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