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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
Dec. 31, 2018
Dec. 31, 2017
Debt Instrument [Line Items]                
Restricted Payments Basket             $ 215,236 $ 176,100
2025 Senior Notes [Member]                
Debt Instrument [Line Items]                
Debt Instrument, Interest Rate, Stated Percentage             5.625%  
Debt Instrument, Redemption Price, Percentage 101.406% 102.813%     100.00% 104.219%    
Senior notes             $ 250,000  
2021 Senior Notes [Member]                
Debt Instrument [Line Items]                
Debt Instrument, Interest Rate, Stated Percentage             6.75%  
Senior notes             $ 300,000  
Debt Instrument, Redemption Price, Percentage of Principal Amount Redeemed     100.00% 101.688%        
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 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%  
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%  
Base of restricted payments basket income calculation [Member]                
Debt Instrument [Line Items]                
Restrictions on payment of dividends             $ 125,000