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CREDIT AGREEMENT - Additional Information (Detail)
9 Months Ended
Jul. 31, 2015
USD ($)
Aug. 20, 2015
USD ($)
Apr. 24, 2015
USD ($)
Apr. 23, 2015
USD ($)
Debt Instrument [Line Items]        
Revolving credit facility, maximum borrowing capacity     $ 750,000,000.0 $ 600,000,000.0
Revolving credit facility, capital expenditure limitation     100,000,000.0 $ 75,000,000.0
Revolving credit facility, capital expenditure limitation with the permitted carry over $ 100,000,000      
Revolving credit facility, capital expenditure limitation $ 160,000,000      
Revolving credit facility, increase in maximum debt to total capitalization ratio 5.00%      
Revolving credit facility, minimum net worth requirement $ 717,900,000      
Revolving credit facility, remaining available balance $ 731,400,000      
Maximum        
Debt Instrument [Line Items]        
Revolving credit facility, maximum debt to total capitalization ratio 0.50      
Subsequent Event        
Debt Instrument [Line Items]        
Revolving credit facility, remaining available balance   $ 731,400,000    
Construction Expenditure Limitation        
Debt Instrument [Line Items]        
Revolving credit facility, construction expenditure limitation $ 175,000,000      
Commercial Loan        
Debt Instrument [Line Items]        
Revolving credit facility, construction expenditure limitation 15,000,000      
2016        
Debt Instrument [Line Items]        
Revolving credit facility, capital expenditure limitation     100,000,000  
Revolving credit facility, permitted carry over of capital expenditure limitation     15,000,000  
2017        
Debt Instrument [Line Items]        
Revolving credit facility, capital expenditure limitation     100,000,000  
Revolving credit facility, permitted carry over of capital expenditure limitation     15,000,000  
2018        
Debt Instrument [Line Items]        
Revolving credit facility, capital expenditure limitation     100,000,000  
Revolving credit facility, permitted carry over of capital expenditure limitation     15,000,000  
2019        
Debt Instrument [Line Items]        
Revolving credit facility, capital expenditure limitation     100,000,000  
Revolving credit facility, permitted carry over of capital expenditure limitation     15,000,000  
2020        
Debt Instrument [Line Items]        
Revolving credit facility, capital expenditure limitation     100,000,000  
Revolving credit facility, permitted carry over of capital expenditure limitation     $ 15,000,000  
Revolving Credit Facility        
Debt Instrument [Line Items]        
Revolving credit facility, outstanding borrowings 0      
Revolving Credit Facility | Subsequent Event        
Debt Instrument [Line Items]        
Revolving credit facility, outstanding borrowings   0    
Letter of Credit        
Debt Instrument [Line Items]        
Revolving credit facility, outstanding borrowings $ 18,600,000      
Letter of Credit | Subsequent Event        
Debt Instrument [Line Items]        
Revolving credit facility, outstanding borrowings   $ 18,600,000