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Long-Term Debt (Components Of Long-Term Debt) (Details) - USD ($)
$ in Thousands
Jun. 30, 2024
Jun. 30, 2023
Debt Instrument [Line Items]    
Debt issuance costs and discounts $ (8,905) $ (11,025)
Total long term debt 1,491,095 1,488,975
Less: Current portion 0 0
Long-term debt excluding current portion 1,491,095 1,488,975
Estimated fair value of long-term debt $ 1,391,000 1,339,000
Senior Notes | Senior Notes, 5.250%, due October 2025    
Debt Instrument [Line Items]    
Interest rate 5.25%  
Senior notes $ 350,000 350,000
Senior Notes | Senior Notes, 2.500%, due July 2028    
Debt Instrument [Line Items]    
Interest rate 2.50%  
Senior notes $ 500,000 500,000
Senior Notes | 2030 Senior Notes    
Debt Instrument [Line Items]    
Interest rate 3.875%  
Senior notes $ 650,000 $ 650,000