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Fair Value of Financial Instruments - Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Details)
Jul. 31, 2019
USD ($)
Security
Oct. 31, 2018
USD ($)
Security
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 1    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Cash and cash equivalents $ 60,500,000 $ 39,100,000
Insurance deposits 800,000 600,000
Assets held in funded deferred compensation plan 2,500,000 2,700,000
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 2    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Credit facility 932,100,000 949,000,000.0
Interest rate swaps liabilities (12,300,000)  
Interest rate swaps assets   1,300,000
Fair Value, Measurements, Recurring | Fair Value, Inputs, Level 3    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments in auction rate securities 5,000,000.0 5,000,000.0
Auction Rate Securities    
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]    
Investments in auction rate securities $ 5,000,000.0 $ 5,000,000
Number of auction rate securities | Security 1 1
Unrealized gain (loss) on auction rate securities $ 0 $ 0