v3.26.1
GOODWILL AND INTANGIBLE ASSETS - Schedule of Intangible Asses (Details) - USD ($)
$ in Thousands
 3 Months Ended 9 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Finite-lived Intangible Assets [Roll Forward]        
Beginning Balance     $ 12,502 $ 16,589
Amortization during the period $ (718) $ (798) (2,407) (2,693)
Write-offs and disposals during the period       (631)
Ending Balance 10,095 13,265 10,095 13,265
Gross carrying amount 91,844 91,844 91,844 91,844
Accumulated amortization (70,678) (67,508) (70,678) (67,508)
Accumulated impairment (11,071) (11,071) (11,071) (11,071)
Total anticipated intangible amortization 10,095 13,265 10,095 13,265
Trademark        
Finite-lived Intangible Assets [Roll Forward]        
Beginning Balance     5,346 6,422
Amortization during the period     (822) (806)
Write-offs and disposals during the period       0
Ending Balance 4,524 5,616 4,524 5,616
Gross carrying amount 13,774 13,774 13,774 13,774
Accumulated amortization (9,250) (8,158) (9,250) (8,158)
Accumulated impairment 0 0 0 0
Total anticipated intangible amortization $ 4,524 5,616 $ 4,524 5,616
Trademark | Minimum        
Finite-lived Intangible Assets [Roll Forward]        
Useful life 5 years   5 years  
Trademark | Maximum        
Finite-lived Intangible Assets [Roll Forward]        
Useful life 15 years   15 years  
Customer Relationships        
Finite-lived Intangible Assets [Roll Forward]        
Beginning Balance     $ 4,111 6,566
Amortization during the period     (1,189) (1,462)
Write-offs and disposals during the period       (631)
Ending Balance $ 2,922 4,473 2,922 4,473
Gross carrying amount 70,338 70,338 70,338 70,338
Accumulated amortization (56,498) (54,947) (56,498) (54,947)
Accumulated impairment (10,918) (10,918) (10,918) (10,918)
Total anticipated intangible amortization $ 2,922 4,473 $ 2,922 4,473
Customer Relationships | Minimum        
Finite-lived Intangible Assets [Roll Forward]        
Useful life 10 years   10 years  
Customer Relationships | Maximum        
Finite-lived Intangible Assets [Roll Forward]        
Useful life 30 years   30 years  
All Others        
Finite-lived Intangible Assets [Roll Forward]        
Beginning Balance     $ 3,045 3,601
Amortization during the period     (396) (425)
Write-offs and disposals during the period       0
Ending Balance $ 2,649 3,176 2,649 3,176
Gross carrying amount 7,732 7,732 7,732 7,732
Accumulated amortization (4,930) (4,403) (4,930) (4,403)
Accumulated impairment (153) (153) (153) (153)
Total anticipated intangible amortization $ 2,649 $ 3,176 $ 2,649 $ 3,176
All Others | Minimum        
Finite-lived Intangible Assets [Roll Forward]        
Useful life 3 years   3 years  
All Others | Maximum        
Finite-lived Intangible Assets [Roll Forward]        
Useful life 20 years   20 years