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ACQUISITIONS - Revenue from Acquisition, Accounted for Pro Forma (Details) - RF Business of Wolfspeed, Inc - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
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Mar. 29, 2024 | Mar. 31, 2023 | Mar. 29, 2024 | Mar. 31, 2023
Asset Acquisition [Line Items] |  |  |  |
Pro forma revenue | $ 181,234 | $ 205,610 | $ 365,219 | $ 428,060
Pro forma net loss | $ 15,222 | $ (1,566) | $ 1,297 | $ (32,842)

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