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Summary of Significant Accounting Policies-Cash Flow Information (Details) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2016 | Jan. 02, 2016 | Jan. 03, 2015
Cash paid during the year for: |  |  |
Interest (net of amounts capitalized) | $ 4,052 | $ 2,293 | $ 469
Income taxes | 31,230 | 36,194 | 19,863
Noncash investing and financing activities: |  |  |
Unpaid purchases of property, plant and equipment | 2,009 | 4,371 | 12,155
Proceeds from stock options exercised, unsettled at period end | 165 | 0 | 0
Stock repurchased, unsettled at period end | $ 0 | $ 4,815 | $ 0

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- Definition Future cash outflow to pay for purchases of fixed assets that have occurred. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4332-108586 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4313-108586 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=6367179&loc=d3e4304-108586 + Details
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