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INCOME TAXES (Significant components of deferred income tax assets and liabilities) (Details) - USD ($) $ in Thousands | Jan. 02, 2022 | Jan. 03, 2021 | Dec. 29, 2019
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Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Unrecognized deferred income tax assets | $ (102,700) | $ (100,400) |
Net deferred tax assets | 17,726 | 17,689 |
Deferred income taxes | 17,726 | 17,689 | $ 9,917
Before Offset Amount [Member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Unrecognized deferred income tax assets | (102,749) | (100,424) |
Net deferred tax assets | 49,857 | 50,220 |
Deferred tax liabilities | (32,131) | (32,531) |
Deferred income taxes | 17,726 | 17,689 |
Before Offset Amount [Member] | Temporary differences |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Deferred tax assets | 152,606 | 150,644 |
Before Offset Amount [Member] | Non-capital losses |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Deferred tax assets | 102,138 | 99,659 |
Before Offset Amount [Member] | Non-deductible reserves and accruals |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Deferred tax assets | 26,304 | 28,211 |
Before Offset Amount [Member] | Property, plant and equipment |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Deferred tax assets | 16,434 | 15,319 |
Deferred tax liabilities | (34,668) | (28,643) |
Before Offset Amount [Member] | Other |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Deferred tax assets | 7,730 | 7,455 |
Before Offset Amount [Member] | Intangible assets |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Deferred tax liabilities | $ 2,537 | $ (3,888) |

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