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CASH, CASH EQUIVALENTS, RESTRICTED CASH AND SHORT-TERM INVESTMENTS (Details) - USD ($)
$ in Thousands
Jun. 29, 2024
Sep. 30, 2023
Cash, Cash Equivalents, Restricted Cash and Short-Term Investments [Line Items]    
Cash, Amortized Cost $ 46,816 $ 37,292
Cash, Unrealized Gains 0 0
Cash, Unrealized Losses 0 0
Cash, Estimated Fair Value 46,816 37,292
Cash and Cash Equivalents, Amortized Cost 366,935 529,412
Cash and Cash Equivalents, Unrealized Gain 0 0
Cash and Cash Equivalents, Unrealized Loss (18) (10)
Cash and Cash Equivalents, Estimated Fair Value 366,917 529,402
Short-term investments, Amortized Cost 235,000 230,000
Short-term Investments, Unrealized Gain 0 0
Short-term Investments, Unrealized Loss 0 0
Short-term Investments, Estimated Fair Value 235,000 230,000
Cash, Cash Equivalents, Restricted Cash, and Short-Term Investments, Amortized Cost 601,935 759,412
Cash, Cash Equivalents, Restricted Cash, and Short-Term Investments, Unrealized Gain 0 0
Cash, Cash Equivalents, Restricted Cash, and Short-Term Investments, Unrealized Loss (18) (10)
Cash, Cash Equivalents, Restricted Cash, and Short-Term Investments, Estimated Fair Value 601,917 759,402
Mutual Funds    
Cash, Cash Equivalents, Restricted Cash and Short-Term Investments [Line Items]    
Cash Equivalents, Amortized Cost 204,395 202,113
Cash Equivalents, Unrealized Gain 0 0
Cash Equivalents, Unrealized Loss (18) (10)
Cash Equivalents, Estimated Fair Value 204,377 202,103
Time deposits    
Cash, Cash Equivalents, Restricted Cash and Short-Term Investments [Line Items]    
Cash Equivalents, Amortized Cost 115,724 290,007
Cash Equivalents, Unrealized Gain 0 0
Cash Equivalents, Unrealized Loss 0 0
Cash Equivalents, Estimated Fair Value 115,724 290,007
Short-term investments, Amortized Cost 235,000 230,000
Short-term Investments, Unrealized Gain 0 0
Short-term Investments, Unrealized Loss 0 0
Short-term Investments, Estimated Fair Value $ 235,000 $ 230,000