v3.26.1
WARRANTY LIABILITY - Narrative (Details) - USD ($)
$ in Thousands
12 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Product Warranty Liability [Line Items]    
Current portion of warranty $ 5,695 $ 5,524
Product warranty accrual, noncurrent $ 1,239 $ 1,239
Home and Building Products (HBP) | Minimum    
Product Warranty Liability [Line Items]    
Product warranty period 1 year  
Home and Building Products (HBP) | Maximum    
Product Warranty Liability [Line Items]    
Product warranty period 10 years  
Consumer And Professional Products | Minimum    
Product Warranty Liability [Line Items]    
Product warranty period 1 year  
Consumer And Professional Products | Maximum    
Product Warranty Liability [Line Items]    
Product warranty period 10 years