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Long-Term Debt (Tables)
 12 Months Ended
Dec. 31, 2023
Debt Disclosure [Abstract]  
Summary of Long-Term Debt
Following is a summary of the Company’s long-term debt:

(in thousands)Maturity
Date		Interest
Rate		Interest
Paid		Public /
Nonpublic		December 31,
2023		December 31,
2022
Senior bonds(1)
11/25/20253.80%Semi-annuallyPublic$350,000 $350,000 
Revolving credit facility(2)(3)
7/9/2026VariableVariesNonpublic— — 
Senior notes10/10/20263.93%QuarterlyNonpublic100,000 100,000 
Senior notes3/21/20303.96%QuarterlyNonpublic150,000 150,000 
Unamortized discount on senior bonds(1)
11/25/2025(17)(26)
Debt issuance costs(824)(1,157)
Total long-term debt$599,159 $598,817 

(1)The senior bonds due in 2025 were issued at 99.975% of par.
(2)The Company’s revolving credit facility has an aggregate maximum borrowing capacity of $500 million. The Company currently believes all banks participating in the revolving credit facility have the ability to and will meet any funding requests from the Company.
(3)During 2023, the Company amended its revolving credit facility to complete the transition of the interest rate index from the London InterBank Offered Rate (LIBOR) to the Secured Overnight Financing Rate (SOFR), as contemplated in the revolving credit facility.
Summary of Principal Maturities of Debt Outstanding
The principal maturities of debt outstanding on December 31, 2023 were as follows:

(in thousands)Debt Maturities
2024$— 
2025350,000 
2026100,000 
2027— 
2028— 
Thereafter150,000 
Long-term debt$600,000