Annual report pursuant to Section 13 and 15(d)

GOODWILL AND OTHER INTANGIBLE ASSETS - Goodwill Attributable to Each Segment (Details)

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GOODWILL AND OTHER INTANGIBLE ASSETS - Goodwill Attributable to Each Segment (Details) - USD ($)
$ in Thousands
 3 Months Ended 12 Months Ended
Mar. 31, 2020
Sep. 30, 2019
Sep. 30, 2021
Sep. 30, 2020
Sep. 30, 2019
Goodwill [Roll Forward]          
Goodwill beginning of period     $ 765,388 $ 846,807  
Translation and other adjustments     3,624 8,989  
Goodwill write-down $ (90,408) $ (77,600) 0 (90,408) $ (77,572)
Additions during period     4,775    
Goodwill end of period   846,807 773,787 765,388 846,807
SGK Brand Solutions          
Goodwill [Roll Forward]          
Goodwill beginning of period     311,737 395,704  
Translation and other adjustments     3,113 6,441  
Goodwill write-down       (90,408)  
Additions during period     0    
Goodwill end of period   395,704 314,850 311,737 395,704
Memorialization          
Goodwill [Roll Forward]          
Goodwill beginning of period     361,682 359,737  
Translation and other adjustments     (97) 1,945  
Goodwill write-down       0  
Additions during period     4,775    
Goodwill end of period   359,737 366,360 361,682 359,737
Industrial Technologies          
Goodwill [Roll Forward]          
Goodwill beginning of period     91,969 91,366  
Translation and other adjustments     608 603  
Goodwill write-down       0  
Additions during period     0    
Goodwill end of period   $ 91,366 $ 92,577 $ 91,969 $ 91,366