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Fair Value of Financial Instruments - Additional Information (Detail) - Distributor | 4 Months Ended | 12 Months Ended
--- | --- | ---
Apr. 21, 2018 | Dec. 30, 2017
Fair Value Disclosures [Line Items] |  |
Number of independent distributors | 4,226 | 4,226
Percentage of down payment on distribution rights purchased | 5.00% |
2026 Notes |  |
Fair Value Disclosures [Line Items] |  |
Derivative, fixed interest rate | 3.50% |
Senior notes due year | 2026 | 2026
2022 Notes |  |
Fair Value Disclosures [Line Items] |  |
Derivative, fixed interest rate | 4.375% |
Senior notes due year | 2022 | 2022
Maximum |  |
Fair Value Disclosures [Line Items] |  |
Financing period of distribution rights, years | 10 years |

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- Definition The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a set, unchanging rate. + 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 210.5-02.22(a)(1)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
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