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STOCKHOLDERS’ EQUITY - Schedule of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($)
$ in Thousands
Dec. 31, 2025
Sep. 30, 2025
Dec. 31, 2024
Sep. 30, 2024
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Total accumulated other comprehensive income (loss) $ 233,656 $ 240,258 $ 200,917 $ 214,801
Total accumulated other comprehensive income (loss)        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Total accumulated other comprehensive income (loss) 474 586 $ (12,950) $ (2,302)
Unrealized gain (loss) on available-for-sale debt securities        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Total accumulated other comprehensive income (loss) 26 48    
Foreign currency translation adjustments        
Accumulated Other Comprehensive Income (Loss) [Line Items]        
Total accumulated other comprehensive income (loss) $ 448 $ 538