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CASH, CASH EQUIVALENTS, AND SHORT-TERM INVESTMENTS (Details) - USD ($) $ in Thousands | Sep. 28, 2024 | Sep. 30, 2023
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Cash and Cash Equivalents [Line Items] |  |
Cash and cash equivalents, Amortized Cost | $ 227,147 | $ 529,402
Cash, Unrealized Gains | 0 | 0
Cash, Unrealized Losses | 0 | 0
Cash | 26,800 | 37,292
Total cash and cash equivalents, Amortized Cost | 227,058 | 529,412
Total cash and cash equivalents, Unrealized Gains | 89 | 0
Total cash and cash equivalents, Unrealized Losses | 0 | (10)
Total cash and cash equivalents, Estimated Fair Value | 227,147 | 529,402
Short-term investments | 350,000 | 230,000
Short-term investments, Unrealized Gains | 0 | 0
Short-term investments, Unrealized Losses | 0 | 0
Short-term investments, Estimated Fair Value | 350,000 | 230,000
Total cash, cash equivalents, restricted cash and short-term investments | 577,058 | 759,412
Total cash, cash equivalents, restricted cash and short-term investments, Unrealized Gains | 89 | 0
Total cash, cash equivalents, restricted cash and short-term investments, Unrealized Losses | 0 | (10)
Total cash, cash equivalents, restricted cash and short-term investments, Estimated Fair Value | 577,147 | 759,402
Cash |  |
Cash and Cash Equivalents [Line Items] |  |
Cash and cash equivalents, Amortized Cost | 26,800 | 37,292
Cash equivalents, Mutual funds |  |
Cash and Cash Equivalents [Line Items] |  |
Cash and cash equivalents, Amortized Cost | 157,590 | 202,113
Cash equivalents, Unrealized Gains | 89 | 0
Cash equivalents, Unrealized Losses | 0 | (10)
Cash equivalents, Estimated Fair Value | 157,679 | 202,103
Cash equivalents, Time deposits |  |
Cash and Cash Equivalents [Line Items] |  |
Cash and cash equivalents, Amortized Cost | 42,668 | 290,007
Cash equivalents, Unrealized Gains | 0 | 0
Cash equivalents, Unrealized Losses | 0 | 0
Cash equivalents, Estimated Fair Value | 42,668 | 290,007
Short-term investments | 350,000 | 230,000
Short-term investments, Unrealized Gains | 0 | 0
Short-term investments, Unrealized Losses | 0 | 0
Short-term investments, Estimated Fair Value | $ 350,000 | $ 230,000

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