v3.25.2
Long-term Debt (Schedule Of Long-Term Debt) (Details) - USD ($)
$ in Thousands
Jun. 30, 2025
Dec. 31, 2024
Debt Instrument [Line Items]    
Long-term Debt, Noncurrent $ 841,829 $ 971,281
2.70% Senior Notes [Member]    
Debt Instrument [Line Items]    
Senior notes, interest rate 2.70% 2.70%
Long-term Debt, Noncurrent $ 394,948 $ 394,506
3.78% Senior Notes [Member]    
Debt Instrument [Line Items]    
Senior notes, interest rate 3.78% 3.78%
Long-term Debt, Noncurrent $ 200,000 $ 250,000
Unsecured Debt    
Debt Instrument [Line Items]    
Long-term Debt, Noncurrent 199,881 249,775
Revolving Credit Facility [Member]    
Debt Instrument [Line Items]    
Long-term Debt, Noncurrent $ 47,000 $ 77,000