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CASH, CASH EQUIVALENTS, RESTRICTED CASH AND SHORT-TERM INVESTMENTS (Details) - USD ($)
$ in Thousands
Mar. 30, 2024
Sep. 30, 2023
Cash, Cash Equivalents, Restricted Cash and Short-Term Investments [Line Items]    
Cash, Amortized Cost $ 36,654 $ 37,292
Cash, Unrealized Gains 0 0
Cash, Unrealized Losses 0 0
Cash, Estimated Fair Value 36,654 37,292
Cash and Cash Equivalents, Amortized Cost 359,761 529,412
Cash and Cash Equivalents, Unrealized Gain 0 0
Cash and Cash Equivalents, Unrealized Loss (13) (10)
Cash and Cash Equivalents, Estimated Fair Value 359,748 529,402
Short-term investments, Amortized Cost 275,000 230,000
Short-term Investments, Unrealized Gain 0 0
Short-term Investments, Unrealized Loss 0 0
Short-term Investments, Estimated Fair Value 275,000 230,000
Cash, Cash Equivalents, Restricted Cash, and Short-Term Investments, Amortized Cost 634,761 759,412
Cash, Cash Equivalents, Restricted Cash, and Short-Term Investments, Unrealized Gain 0 0
Cash, Cash Equivalents, Restricted Cash, and Short-Term Investments, Unrealized Loss (13) (10)
Cash, Cash Equivalents, Restricted Cash, and Short-Term Investments, Estimated Fair Value 634,748 759,402
Money market funds    
Cash, Cash Equivalents, Restricted Cash and Short-Term Investments [Line Items]    
Cash Equivalents, Amortized Cost 223,107 202,113
Cash Equivalents, Unrealized Gain 0 0
Cash Equivalents, Unrealized Loss (13) (10)
Cash Equivalents, Estimated Fair Value 223,094 202,103
Time deposits    
Cash, Cash Equivalents, Restricted Cash and Short-Term Investments [Line Items]    
Cash Equivalents, Amortized Cost 100,000 290,007
Cash Equivalents, Unrealized Gain 0 0
Cash Equivalents, Unrealized Loss 0 0
Cash Equivalents, Estimated Fair Value 100,000 290,007
Short-term investments, Amortized Cost 275,000 230,000
Short-term Investments, Unrealized Gain 0 0
Short-term Investments, Unrealized Loss 0 0
Short-term Investments, Estimated Fair Value $ 275,000 $ 230,000