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Carrying Amount of Goodwill by Segment (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2016 | Jan. 02, 2016
Goodwill [Line Items] |  |
Beginning balance | $ 464,926 | $ 282,960
Change in goodwill related to acquisitions | 652 | 181,966
Ending balance | 465,578 | 464,926
DSD Segment |  |
Goodwill [Line Items] |  |
Beginning balance | 424,408 | 278,483
Change in goodwill related to acquisitions | 155 | 145,925
Ending balance | 424,563 | 424,408
Warehouse Segment |  |
Goodwill [Line Items] |  |
Beginning balance | 40,518 | 4,477
Change in goodwill related to acquisitions | 497 | 36,041
Ending balance | $ 41,015 | $ 40,518

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- Definition Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6388280&loc=d3e13770-109266 Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 45 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=64834752&loc=SL49117168-202975 + Details
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- Definition Amount of increase (decrease) from adjustments after acquisition date under purchase accounting of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 805 -SubTopic 10 -Section 25 -Paragraph 16 -URI http://asc.fasb.org/extlink&oid=73531572&loc=d3e961-128460 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 350 -SubTopic 20 -Section 50 -Paragraph 1 -Subparagraph (g) -URI http://asc.fasb.org/extlink&oid=35741047&loc=d3e13816-109267 + Details
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