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INCOME TAXES (Significant components of deferred income tax assets and liabilities) (Details) - USD ($) $ in Thousands | Dec. 29, 2019 | Dec. 30, 2018 | Dec. 31, 2017
--- | --- | --- | ---
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Unrecognized deferred income tax assets | $ (83,300) | $ (85,700) |
Net deferred tax assets | 9,917 | 0 |
Deferred tax liabilities | 0 | (12,623) |
Deferred income taxes | 9,917 | (12,623) | $ (3,713)
Before Offset Amount [Member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Unrecognized deferred income tax assets | (83,390) | (85,724) |
Net deferred tax assets | 49,314 | 26,737 |
Deferred tax liabilities | (39,397) | (39,360) |
Deferred income taxes | 9,917 | (12,623) |
Before Offset Amount [Member] | Temporary differences |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Deferred tax assets | 132,704 | 112,461 |
Before Offset Amount [Member] | Non-capital losses |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Deferred tax assets | 99,504 | 85,800 |
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 | 12,502 | 11,395 |
Before Offset Amount [Member] | Property, plant and equipment |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Deferred tax assets | 12,439 | 9,227 |
Deferred tax liabilities | (30,165) | (29,095) |
Before Offset Amount [Member] | Other |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Deferred tax assets | 8,259 | 6,039 |
Before Offset Amount [Member] | Intangible assets |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Deferred tax liabilities | $ (9,232) | $ (10,265) |

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