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Inventories - Additional Information (Detail) - USD ($) $ in Millions | Jan. 02, 2016 | Jan. 03, 2015
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Inventory Disclosure [Abstract] |  |
LIFO inventory amount | $ 78.7 | $ 62.5
Excess of FIFO over LIFO value | $ 27.0 | $ 25.1

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- Definition The excess of replacement or current cost over the stated LIFO (last in first out) inventory value when the LIFO inventory method is utilized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.6(c)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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Balance Type: | debit
Period Type: | instant

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- References No definition available. + Details
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Balance Type: | na
Period Type: | duration

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- Definition The amount of LIFO (last in first out) inventory present at the reporting date when inventory is also valued using different valuation methods. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6361739&loc=d3e7789-107766 + Details
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Balance Type: | debit
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