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FAIR VALUE MEASUREMENTS - Additional Information (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Jul. 02, 2022 | Jul. 02, 2022 | Jul. 03, 2021 | Sep. 30, 2021
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Payments to Acquire Investments |  | $ 25.0 | $ 0.0 |
Convertible debt investments |  |  |  |
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] |  |  |  |
Cost basis of investment | $ 218.1 | 218.1 |  | $ 193.1
Unrealized gain (loss) on investment | (79.2) | (78.9) |  |
Investment income | 0.9 | 2.7 |  |
Payments to Acquire Investments | 25.0 | 25.0 |  |
Amortized cost | $ 221.1 | $ 221.1 |  | $ 193.4

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