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Income Taxes - Additional Information (Detail) - USD ($)
$ in Thousands
12 Months Ended
Sep. 30, 2024
Sep. 30, 2023
Oct. 01, 2023
Income Taxes [Line Items]      
Deferred tax asset $ 3,300    
Gross unrecognized tax benefits 4,085 $ 5,833 $ 5,833
Interest and penalties 1,400 $ 1,400  
Domestic Country      
Income Taxes [Line Items]      
Net operating loss (NOL) carryforwards 4,500    
Foreign Country      
Income Taxes [Line Items]      
Net operating loss (NOL) carryforwards $ 9,100    
Minimum [Member] | State And Local Jurisdiction      
Income Taxes [Line Items]      
Operating loss carry forwards expiration year 2025