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FAIR VALUE MEASUREMENTS - Investments (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2023 | Oct. 01, 2022 | Sep. 30, 2023 | Oct. 01, 2022 | Dec. 31, 2022
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |
Gain (loss) on investments | $ 0.8 | $ (0.5) | $ 1.4 | $ (2.4) |
Fair Value, Inputs, Level 1 |  |  |  |  |
Fair Value Measurement Inputs and Valuation Techniques [Line Items] |  |  |  |  |
Investments | $ 16.4 | $ 15.1 | $ 16.4 | $ 15.1 | $ 15.1

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