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GOODWILL AND INTANGIBLE ASSETS (Net intangible assets) (Details) - USD ($)
$ in Thousands
Jul. 01, 2023
Oct. 01, 2022
Schedule Of Intangible Assets [Line Items]    
Net intangible assets $ 31,418 $ 31,939
In-process research and development    
Schedule Of Intangible Assets [Line Items]    
Gross intangible assets 459 0
Net intangible assets 459 0
Developed technology    
Schedule Of Intangible Assets [Line Items]    
Gross intangible assets 99,614 89,017
Accumulated amortization (65,861) (58,636)
Impairment charges (6,900) 0
Net intangible assets $ 26,853 30,381
Developed technology | Minimum    
Schedule Of Intangible Assets [Line Items]    
Estimated useful life 6 years  
Developed technology | Maximum    
Schedule Of Intangible Assets [Line Items]    
Estimated useful life 15 years  
Customer relationships    
Schedule Of Intangible Assets [Line Items]    
Gross intangible assets $ 37,259 33,515
Accumulated amortization (35,217) (33,515)
Net intangible assets $ 2,042 0
Customer relationships | Minimum    
Schedule Of Intangible Assets [Line Items]    
Estimated useful life 5 years  
Customer relationships | Maximum    
Schedule Of Intangible Assets [Line Items]    
Estimated useful life 8 years  
Trade and brand name    
Schedule Of Intangible Assets [Line Items]    
Gross intangible assets $ 7,212 6,945
Accumulated amortization (7,212) (6,945)
Net intangible assets $ 0 0
Trade and brand name | Minimum    
Schedule Of Intangible Assets [Line Items]    
Estimated useful life 7 years  
Trade and brand name | Maximum    
Schedule Of Intangible Assets [Line Items]    
Estimated useful life 8 years  
Other intangible assets    
Schedule Of Intangible Assets [Line Items]    
Gross intangible assets $ 5,634 4,700
Accumulated amortization (3,570) (3,142)
Net intangible assets $ 2,064 $ 1,558
Other intangible assets | Minimum    
Schedule Of Intangible Assets [Line Items]    
Estimated useful life 1 year  
Other intangible assets | Maximum    
Schedule Of Intangible Assets [Line Items]    
Estimated useful life 8 years