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BUSINESS COMBINATION (Pro Forma Results) (Details) - Uniqarta - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Apr. 03, 2021 | Mar. 28, 2020 | Apr. 03, 2021 | Mar. 28, 2020
Business Acquisition [Line Items] |  |  |  |
Revenue | $ 340,163 | $ 150,741 | $ 608,020 | $ 295,038
Net income | $ 72,674 | $ 11,839 | $ 121,068 | $ 23,388

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