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Project Assets - Additional Information (Details)
 3 Months Ended 12 Months Ended
Oct. 31, 2019
USD ($)
Oct. 31, 2019
USD ($)
ProjectAsset
Oct. 31, 2018
USD ($)
ProjectAsset
Oct. 31, 2017
USD ($)
Project Assets [Line Items]        
Long-term project assets $ 144,115,000 $ 144,115,000 $ 99,600,000  
Number of project assets | ProjectAsset   6 5  
Sale leaseback transaction, net book value 59,200,000 $ 59,200,000 $ 28,600,000  
Long-term gross project asset values 160,000,000 160,000,000 107,700,000  
Project assets accumulated depreciation 15,900,000 $ 15,900,000 8,100,000  
Project assets estimated useful life   20 years    
Long-term project assets construction in progress $ 84,900,000 $ 84,900,000 71,000,000  
Impairment charges   20,360,000 0 $ 0
Impairment on project asset     500,000  
Depreciation expense   6,800,000 $ 4,100,000 $ 4,100,000
Triangle Street Project [Member]        
Project Assets [Line Items]        
Project assets estimated useful life 5 years      
Impairment charges $ 14,400,000      
Bolthouse Farms Project [Member]        
Project Assets [Line Items]        
Impairment charges   $ 3,100,000    
Minimum [Member]        
Project Assets [Line Items]        
Project assets estimated useful life   5 years    
Maximum [Member]        
Project Assets [Line Items]        
Project assets estimated useful life   7 years