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FINANCIAL INSTRUMENTS (Additional Information) (Details) | 12 Months Ended |
--- | --- | ---
Dec. 29, 2019 USD ($) shares pound | Dec. 30, 2018 USD ($) shares pound
Disclosure of detailed information about hedged items [line items] |  |
Net losses in AOCI expected to be reclassified to inventory or net earnings within the next twelve months | $ 1,500,000 |
Total Return Swap |  |
Disclosure of detailed information about hedged items [line items] |  |
Term of TRS | 1 year |
Nominal amount of derivative | shares | 216,727 | 259,897
Notional amount | $ 300,000 | $ 0.6
Cash flow hedges |  |
Disclosure of detailed information about hedged items [line items] |  |
Ineffectiveness recognized in net earnings | $ 0 |
Commodity risk | Cash flow hedges | Forward contracts |  |
Disclosure of detailed information about hedged items [line items] |  |
Nominal amount of derivative | pound | 133,700 | 76,000
Notional amount of instrument not designed as hedging | pound |  | 81.2
Commodity risk | Financial assets included in prepaid expenses, deposits and other current assets | Cash flow hedges | Forward contracts |  |
Disclosure of detailed information about hedged items [line items] |  |
Instrument not designed as hedging, assets |  | $ 300,000
Commodity risk | Accounts payable and accrued liabilities (1) | Cash flow hedges | Forward contracts |  |
Disclosure of detailed information about hedged items [line items] |  |
Instrument not designed as hedging, assets |  | $ 1,000,000

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