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Debt Senior Notes (Details) - USD ($)
$ in Thousands
12 Months Ended 24 Months Ended 48 Months Ended
Jul. 31, 2023
Jul. 31, 2022
Jan. 15, 2021
Jan. 14, 2020
Jul. 31, 2025
Jul. 31, 2021
Jun. 30, 2019
Dec. 31, 2018
Debt Instrument [Line Items]                
Restricted Payments Basket             $ 229,600 $ 215,200
2025 Senior Notes [Member]                
Debt Instrument [Line Items]                
Debt Instrument, Face Amount             $ 250,000  
Debt Instrument, Interest Rate, Stated Percentage             5.625%  
Debt Instrument, Redemption Price, Percentage 101.406% 102.813%     100.00% 104.219%    
2021 Senior Notes [Member]                
Debt Instrument [Line Items]                
Debt Instrument, Face Amount             $ 300,000  
Debt Instrument, Interest Rate, Stated Percentage             6.75%  
Debt Instrument, Redemption Price, Percentage     100.00% 101.688%        
Base of restricted payments basket income calculation [Member]                
Debt Instrument [Line Items]                
Other Restrictions on Payment of Dividends             $ 125,000  
Percentage of our aggregate consolidated net income added to base amount of calculation [Member]                
Debt Instrument [Line Items]                
Percent restrictions on payment of dividends             50.00%  
Percentage of our aggregate consolidated net income subtracted from base amount of calculation [Member]                
Debt Instrument [Line Items]                
Percent restrictions on payment of dividends             100.00%  
Percentage of net cash proceeds from sale of qualified equity interests added to base and income/loss amount in calculation [Member]                
Debt Instrument [Line Items]                
Percent restrictions on payment of dividends             100.00%