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FAIR VALUE MEASUREMENTS - Additional Information (Details) - Convertible debt investments - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Dec. 28, 2024
Jun. 28, 2025
Jun. 29, 2024
Sep. 30, 2024
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Amortized cost basis of investment   $ 44.4 $ 226.1 $ 62.1
Unrealized gain (loss) on investment $ (16.4) (16.9) (136.3)  
Expected credit losses   $ 1.9 $ 101.3 $ 1.9
Maximum        
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]        
Debt term   4 years 2 months 12 days