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SEGMENT INFORMATION - Segment Income or Loss Reconciliation (Details) - USD ($) $ in Thousands | 3 Months Ended
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Apr. 01, 2022 | Apr. 02, 2021
Segment Reporting Information [Line Items] |  |
Total consolidated segment operating income (loss) | $ 2,536 | $ (3,844)
Unallocated corporate expenses | (66,646) | (58,989)
Stock-based compensation | (7,586) | (8,398)
Amortization of intangibles | 0 | (507)
Non-operating expense, net | (1,371) | (1,584)
Income (loss) before income taxes | 1,165 | (5,428)
Operating segments |  |
Segment Reporting Information [Line Items] |  |
Total consolidated segment operating income (loss) | 11,278 | 5,068
Corporate, non-segments |  |
Segment Reporting Information [Line Items] |  |
Unallocated corporate expenses | $ (1,156) | $ (7)

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