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Senior Long-Term Debt And Other Debt (Tables)
 12 Months Ended
Dec. 31, 2024
Debt Disclosure [Abstract]  
Summary Of Senior Long-Term Debt And Other Debt
The following table summarizes the Company's senior long-term debt and other debt.

December 31,
(dollars in thousands)20242023
3.50% unsecured senior notes, due November 1, 2027, interest payable semi-annually, net of unamortized discount of $592 in 2024 and $876 in 2023
$299,236 $298,869 
3.35% unsecured senior notes, due September 17, 2029, interest payable semi-annually, net of unamortized discount of $1,174 in 2024 and $1,421 in 2023
298,590 298,294 
7.35% unsecured senior notes, due August 15, 2034, interest payable semi-annually, net of unamortized discount of $663 in 2024 and $731 in 2023
129,148 129,076 
5.0% unsecured senior notes, due March 30, 2043, interest payable semi-annually, net of unamortized discount of $4,087 in 2024 and $4,311 in 2023
245,687 245,451 
5.0% unsecured senior notes, due April 5, 2046, interest payable semi-annually, net of unamortized discount of $5,202 in 2024 and $5,445 in 2023
494,135 493,860 
4.30% unsecured senior notes, due November 1, 2047, interest payable semi-annually, net of unamortized discount of $3,364 in 2024 and $3,516 in 2023
296,049 295,870 
5.0% unsecured senior notes, due May 20, 2049, interest payable semi-annually, net of unamortized discount of $6,378 in 2024 and $6,639 in 2023
592,538 592,233 
4.15% unsecured senior notes, due September 17, 2050, interest payable semi-annually, net of unamortized discount of $4,563 in 2024 and $4,740 in 2023
494,749 494,546 
3.45% unsecured senior notes, due May 7, 2052, interest payable semi-annually, net of unamortized discount of $7,626 in 2024 and $7,904 in 2023
591,316 591,000 
6.00% unsecured senior notes, due May 16, 2054, interest payable semi-annually, net of unamortized discount of $7,240 in 2024 and $0 in 2023
591,511 — 
Other debt, with a weighted average interest rate of 5.4% in 2024 and 5.0% in 2023
297,382 340,597 
Senior long-term debt and other debt$4,330,341 $3,779,796 
Summary Of Future Principal Payments Due At Maturity On Senior Long-Term Debt And Other Debt
The following table summarizes the future principal payments on senior long-term debt and other debt as of December 31, 2024.

(dollars in thousands)
Senior long-term debtOther debtTotal
Years Ending December 31,
2025$— $41,843 $41,843 
2026— 41,902 41,902 
2027300,000 158,376 458,376 
2028— 16,724 16,724 
2029300,000 15,182 315,182 
2030 and thereafter3,479,846 25,905 3,505,751 
Total principal payments4,079,846 299,932 4,379,778 
Net unamortized discount(40,889)— (40,889)
Net unamortized debt issuance costs(5,998)(2,550)(8,548)
Total
$4,032,959 $297,382 $4,330,341