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GOODWILL AND OTHER INTANGIBLE ASSETS - Narrative (Details)
acre in Thousands, $ in Millions
12 Months Ended
Sep. 03, 2024
USD ($)
acre
Sep. 30, 2024
USD ($)
Sep. 30, 2023
USD ($)
Sep. 30, 2022
USD ($)
Acquired Indefinite-lived Intangible Assets [Line Items]        
Accumulated amortization   $ 31.9 $ 27.9  
Finite-lived intangible assets, net   79.6 99.5  
Amortization expense   4.3 2.7 $ 1.6
Projected amortization expense, minimum   3.0    
Projected amortization expense, maximum   $ 5.0    
Remaining amortization period   5 years    
Weighted-average amortization period (in years)   30 years    
Number of acres utilized for production, conservation and preservation | acre 201      
Trade Name        
Acquired Indefinite-lived Intangible Assets [Line Items]        
Indefinite-lived intangible assets   $ 0.5 0.5  
In Process Research and Development        
Acquired Indefinite-lived Intangible Assets [Line Items]        
Indefinite-lived intangible assets   2.2 2.2  
In Process Research and Development | Fortress        
Acquired Indefinite-lived Intangible Assets [Line Items]        
Indefinite-lived intangible assets   2.2    
Water Rights        
Acquired Indefinite-lived Intangible Assets [Line Items]        
Indefinite-lived intangible assets   0.2 17.8  
Impairment of indefinite lived intangible assets $ 17.6      
Developed Technology        
Acquired Indefinite-lived Intangible Assets [Line Items]        
Impairment of intangible assets   15.6    
Accumulated amortization     0.1  
Finite-lived intangible assets, net     16.0  
Developed Technology | Fortress        
Acquired Indefinite-lived Intangible Assets [Line Items]        
Impairment of intangible assets   15.6    
Accumulated amortization   0.4    
Customer Relationships        
Acquired Indefinite-lived Intangible Assets [Line Items]        
Accumulated amortization   3.4 1.0  
Finite-lived intangible assets, net   55.1 57.4  
Customer Relationships | Fortress        
Acquired Indefinite-lived Intangible Assets [Line Items]        
Finite-lived intangible assets, net   54.1    
Trade Name        
Acquired Indefinite-lived Intangible Assets [Line Items]        
Accumulated amortization   0.1 0.0  
Finite-lived intangible assets, net   0.1 $ 0.2  
Trade Name | Fortress        
Acquired Indefinite-lived Intangible Assets [Line Items]        
Finite-lived intangible assets, net   $ 0.1