Annual report [Section 13 and 15(d), not S-K Item 405]

GOODWILL AND OTHER INTANGIBLE ASSETS - Narrative (Details)

v3.25.3
GOODWILL AND OTHER INTANGIBLE ASSETS - Narrative (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2023
Goodwill [Line Items]          
Accumulated impairment charges $ 45,673 $ 277,913 $ 45,673 $ 277,913  
Goodwill write-downs 0   0 16,727 $ 0
Amortization expense on intangible assets     20,069 37,023 $ 42,068
Future amortization expense 2026 9,497   9,497    
Future amortization expense 2027 8,597   8,597    
Future amortization expense 2028 6,702   6,702    
Future amortization expense 2029 5,782   5,782    
Future amortization expense 2030 5,314   5,314    
Surfaces and Engineering Reporting Unit          
Goodwill [Line Items]          
Goodwill write-downs   16,727      
Memorialization          
Goodwill [Line Items]          
Accumulated impairment charges 5,000 5,000 5,000 5,000  
Goodwill write-downs       0  
Industrial Technologies          
Goodwill [Line Items]          
Accumulated impairment charges $ 40,673 40,673 $ 40,673 40,673  
Goodwill write-downs       16,727  
SGK Brand Solutions          
Goodwill [Line Items]          
Accumulated impairment charges   $ 232,240   232,240  
Goodwill write-downs       $ 0