Quarterly report pursuant to Section 13 or 15(d)

Note 4 - Fair Value Measurement - Fair Value of Long-term Debt (Details)

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Note 4 - Fair Value Measurement - Fair Value of Long-term Debt (Details) - USD ($)
$ in Thousands
Apr. 30, 2021
Oct. 31, 2020
Reported Value Measurement [Member] | Term Loan Agreement [Member]    
Debt, fair value $ 0 $ 381,205
Reported Value Measurement [Member] | Senior Secured Notes [Member]    
Debt, fair value 375,000 0
Reported Value Measurement [Member] | Capital Lease Obligations [Member]    
Debt, fair value 430 477
Estimate of Fair Value Measurement [Member] | Term Loan Agreement [Member]    
Debt, fair value 0 365,003
Estimate of Fair Value Measurement [Member] | Senior Secured Notes [Member]    
Debt, fair value 394,688 0
Estimate of Fair Value Measurement [Member] | Capital Lease Obligations [Member]    
Debt, fair value $ 430 $ 477