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FINANCIAL INSTRUMENTS (Floating-to-fixed interest rate swap contracts outstanding) (Details) - USD ($) | Jan. 02, 2022 | Jan. 03, 2021
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Disclosure of detailed information about hedging instruments [line items] |  |
Long-term debt (note 12) | $ 600,000,000 | $ 1,000,000,000
Term Loan, Interest At Variable U.S. LIBOR-based Interest Rate Plus A Spread Ranging From 1% to 3% Due April 2025 |  |
Disclosure of detailed information about hedging instruments [line items] |  |
Long-term debt (note 12) | 300,000,000 | 300,000,000
Interest rate risk |  |
Disclosure of detailed information about hedging instruments [line items] |  |
Notional amount | 400,000,000 |
Cash flow hedges | Interest rate risk |  |
Disclosure of detailed information about hedging instruments [line items] |  |
Notional amount | 250,000,000 |
Cash flow hedges | Interest rate risk | Term Loan, Interest At Variable U.S. LIBOR-based Interest Rate Plus A Spread Ranging From 1% to 3% Due April 2025 |  |
Disclosure of detailed information about hedging instruments [line items] |  |
Notional amount | 100,000,000 |
Cash flow hedges | Interest rate risk | Floating-to-fixed interest rate swap, maturing on June 17, 2021 |  |
Disclosure of detailed information about hedging instruments [line items] |  |
Notional amount | 75,000,000 | 150,000,000
Cash flow hedges | Interest rate risk | Floating-To-Fixed Interest Rate Swap Contracts Maturing On April 6, 2022 |  |
Disclosure of detailed information about hedging instruments [line items] |  |
Notional amount | 50,000,000 |
Cash flow hedges | Interest rate risk | Floating-to-fixed interest rate swap, maturing on April 30, 2023 |  |
Disclosure of detailed information about hedging instruments [line items] |  |
Notional amount | 25,000,000 | 25,000,000
Cash flow hedges | Interest rate risk | Floating-To-Fixed Interest Rate Swap Contracts Maturing On April 30, 2024 |  |
Disclosure of detailed information about hedging instruments [line items] |  |
Notional amount | 50,000,000 | 75,000,000
Cash flow hedges | Interest rate risk | Floating-To-Fixed Interest Rate Swap Contracts Maturing On April 30, 2025 |  |
Disclosure of detailed information about hedging instruments [line items] |  |
Notional amount | 25,000,000 |
Cash flow hedges | Interest rate risk | Floating-To-Fixed Interest Rate Swap Contracts Maturing On May 30, 2025 |  |
Disclosure of detailed information about hedging instruments [line items] |  |
Notional amount | 25,000,000 |
Cash flow hedges | Interest rate risk | Floating-to-fixed interest rate swap, maturing on August 25, 2023 |  |
Disclosure of detailed information about hedging instruments [line items] |  |
Notional amount | 50,000,000 | 50,000,000
Cash flow hedges | Interest rate risk | Floating-to-fixed interest rate swap, maturing on August 25, 2026 |  |
Disclosure of detailed information about hedging instruments [line items] |  |
Notional amount | $ 50,000,000 | $ 25,000,000
Cash flow hedges | Interest rate risk | Fixed rate | Floating-to-fixed interest rate swap, maturing on June 17, 2021 |  |
Disclosure of detailed information about hedging instruments [line items] |  |
Interest rate | 2.85% | 0.96%
Cash flow hedges | Interest rate risk | Fixed rate | Floating-To-Fixed Interest Rate Swap Contracts Maturing On April 6, 2022 |  |
Disclosure of detailed information about hedging instruments [line items] |  |
Interest rate | 1.51% |
Cash flow hedges | Interest rate risk | Fixed rate | Floating-to-fixed interest rate swap, maturing on April 30, 2023 |  |
Disclosure of detailed information about hedging instruments [line items] |  |
Interest rate | 1.06% | 0.27%
Cash flow hedges | Interest rate risk | Fixed rate | Floating-To-Fixed Interest Rate Swap Contracts Maturing On April 30, 2024 |  |
Disclosure of detailed information about hedging instruments [line items] |  |
Interest rate | 0.78% | 2.85%
Cash flow hedges | Interest rate risk | Fixed rate | Floating-To-Fixed Interest Rate Swap Contracts Maturing On April 30, 2025 |  |
Disclosure of detailed information about hedging instruments [line items] |  |
Interest rate | 1.59% |
Cash flow hedges | Interest rate risk | Fixed rate | Floating-To-Fixed Interest Rate Swap Contracts Maturing On May 30, 2025 |  |
Disclosure of detailed information about hedging instruments [line items] |  |
Interest rate | 1.23% |
Cash flow hedges | Interest rate risk | Fixed rate | Floating-to-fixed interest rate swap, maturing on August 25, 2023 |  |
Disclosure of detailed information about hedging instruments [line items] |  |
Interest rate | 1.18% | 1.51%
Cash flow hedges | Interest rate risk | Fixed rate | Floating-to-fixed interest rate swap, maturing on August 25, 2026 |  |
Disclosure of detailed information about hedging instruments [line items] |  |
Interest rate | 1.34% | 1.06%
Financial assets included in prepaid expenses, deposits and other current assets | Cash flow hedges | Interest rate risk |  |
Disclosure of detailed information about hedging instruments [line items] |  |
Financial assets, carrying value | $ 1,322,000 | $ 0
Financial assets included in prepaid expenses, deposits and other current assets | Cash flow hedges | Interest rate risk | Floating-to-fixed interest rate swap, maturing on June 17, 2021 |  |
Disclosure of detailed information about hedging instruments [line items] |  |
Financial assets, carrying value | 0 | 0
Financial assets included in prepaid expenses, deposits and other current assets | Cash flow hedges | Interest rate risk | Floating-To-Fixed Interest Rate Swap Contracts Maturing On April 6, 2022 |  |
Disclosure of detailed information about hedging instruments [line items] |  |
Financial assets, carrying value | 32,000 |
Financial assets included in prepaid expenses, deposits and other current assets | Cash flow hedges | Interest rate risk | Floating-to-fixed interest rate swap, maturing on April 30, 2023 |  |
Disclosure of detailed information about hedging instruments [line items] |  |
Financial assets, carrying value | 167,000 | 0
Financial assets included in prepaid expenses, deposits and other current assets | Cash flow hedges | Interest rate risk | Floating-To-Fixed Interest Rate Swap Contracts Maturing On April 30, 2024 |  |
Disclosure of detailed information about hedging instruments [line items] |  |
Financial assets, carrying value | 624,000 | 0
Financial assets included in prepaid expenses, deposits and other current assets | Cash flow hedges | Interest rate risk | Floating-To-Fixed Interest Rate Swap Contracts Maturing On April 30, 2025 |  |
Disclosure of detailed information about hedging instruments [line items] |  |
Financial assets, carrying value | 0 |
Financial assets included in prepaid expenses, deposits and other current assets | Cash flow hedges | Interest rate risk | Floating-To-Fixed Interest Rate Swap Contracts Maturing On May 30, 2025 |  |
Disclosure of detailed information about hedging instruments [line items] |  |
Financial assets, carrying value | 171,000 |
Financial assets included in prepaid expenses, deposits and other current assets | Cash flow hedges | Interest rate risk | Floating-to-fixed interest rate swap, maturing on August 25, 2023 |  |
Disclosure of detailed information about hedging instruments [line items] |  |
Financial assets, carrying value | 0 | 0
Financial assets included in prepaid expenses, deposits and other current assets | Cash flow hedges | Interest rate risk | Floating-to-fixed interest rate swap, maturing on August 25, 2026 |  |
Disclosure of detailed information about hedging instruments [line items] |  |
Financial assets, carrying value | 328,000 | 0
Accounts payable and accrued liabilities (1) | Cash flow hedges | Interest rate risk |  |
Disclosure of detailed information about hedging instruments [line items] |  |
Financial liabilities, carrying value | (4,026,000) | (10,944,000)
Accounts payable and accrued liabilities (1) | Cash flow hedges | Interest rate risk | Floating-to-fixed interest rate swap, maturing on June 17, 2021 |  |
Disclosure of detailed information about hedging instruments [line items] |  |
Financial liabilities, carrying value | (2,272,000) | (630,000)
Accounts payable and accrued liabilities (1) | Cash flow hedges | Interest rate risk | Floating-To-Fixed Interest Rate Swap Contracts Maturing On April 6, 2022 |  |
Disclosure of detailed information about hedging instruments [line items] |  |
Financial liabilities, carrying value | (744,000) |
Accounts payable and accrued liabilities (1) | Cash flow hedges | Interest rate risk | Floating-to-fixed interest rate swap, maturing on April 30, 2023 |  |
Disclosure of detailed information about hedging instruments [line items] |  |
Financial liabilities, carrying value | (154,000) | (48,000)
Accounts payable and accrued liabilities (1) | Cash flow hedges | Interest rate risk | Floating-To-Fixed Interest Rate Swap Contracts Maturing On April 30, 2024 |  |
Disclosure of detailed information about hedging instruments [line items] |  |
Financial liabilities, carrying value | 0 | (3,800,000)
Accounts payable and accrued liabilities (1) | Cash flow hedges | Interest rate risk | Floating-To-Fixed Interest Rate Swap Contracts Maturing On April 30, 2025 |  |
Disclosure of detailed information about hedging instruments [line items] |  |
Financial liabilities, carrying value | (22,000) |
Accounts payable and accrued liabilities (1) | Cash flow hedges | Interest rate risk | Floating-To-Fixed Interest Rate Swap Contracts Maturing On May 30, 2025 |  |
Disclosure of detailed information about hedging instruments [line items] |  |
Financial liabilities, carrying value | 0 |
Accounts payable and accrued liabilities (1) | Cash flow hedges | Interest rate risk | Floating-to-fixed interest rate swap, maturing on August 25, 2023 |  |
Disclosure of detailed information about hedging instruments [line items] |  |
Financial liabilities, carrying value | (380,000) | (1,886,000)
Accounts payable and accrued liabilities (1) | Cash flow hedges | Interest rate risk | Floating-to-fixed interest rate swap, maturing on August 25, 2026 |  |
Disclosure of detailed information about hedging instruments [line items] |  |
Financial liabilities, carrying value | $ (454,000) | $ (755,000)

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