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SUPPLEMENTAL CASH FLOW DISCLOSURE (Changes in non-cash working capital balances) (Details) - USD ($) $ in Thousands | 12 Months Ended
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Jan. 02, 2022 | Jan. 03, 2021
Cash flow statement [Abstract] |  |
Trade accounts receivable | $ (135,103) | $ 125,150
Income taxes | 12,577 | (5,747)
Inventories | (33,744) | 320,384
Prepaid expenses, deposits and other current assets | (18,964) | 18,199
Accounts payable and accrued liabilities | 78,495 | (62,476)
Other adjustments to reconcile profit (loss) | $ (96,739) | $ 395,510

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