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Long-Term Debt (Schedule Of Aggregate Maturities For Debt Outstanding) (Details) - USD ($)
$ in Thousands
Oct. 31, 2020
Jul. 31, 2020
Oct. 31, 2019
Debt Instrument [Line Items]      
2021 (November 2020 through July 2021) $ 53,699    
2021 115,195    
2022 63,740    
2023 63,796    
2024 1,626,662    
Thereafter 521,019    
Total debt $ 2,444,111 $ 2,444,248 $ 2,057,986