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Fair Values of Financial Instruments (Tables)
12 Months Ended
Dec. 31, 2024
Fair Value Disclosures [Abstract]  
Schedule of Estimated Fair Value of Outstanding Debt Balances
The estimated fair value of our outstanding debt balances as of December 31, 2024 and 2023 is set forth below (in thousands):
20242023
Carrying
Value
Fair
Value
Carrying
Value
Fair
Value
3.95% Senior Notes Due 2028
$482,505 $461,720 $482,505 $450,540 
5.15% Senior Notes Due 2029
344,895 336,490 344,895 329,032 
7.15% Senior Notes Due 2033
400,000 419,265 400,000 424,946 
Equipment Loans Due 20256,395 6,424 18,686 18,766 
Total debt$1,233,795 $1,223,899 $1,246,086 $1,223,284 
Schedule of Implied Market Rates of Interest
The implied market rates of interest used to determine the fair value of our outstanding debt balances as of December 31, 2024 and 2023 are set forth below:
20242023
3.95% Senior Notes Due 2028
5.49 %5.79 %
5.15% Senior Notes Due 2029
5.73 %6.10 %
7.15% Senior Notes Due 2033
6.42 %6.28 %
Equipment Loans Due 20255.28 %5.36 %