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FAIR VALUE - Additional Information (Detail) - USD ($)
$ in Millions
3 Months Ended
Jan. 03, 2020
Sep. 27, 2019
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Equity investments in privately-held companies $ 56.4 $ 64.2
Notes Receivable    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Long-term 34.1 33.6
C P T C | Term Loan    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Modified former loans receivable $ 44.0 $ 44.0
Minimum    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Derivative, term of contract 1 month  
Maximum    
Fair Value Assets And Liabilities Measured On Recurring And Nonrecurring Basis [Line Items]    
Derivative, term of contract 15 months