Fair Values of Financial Instruments (Tables)

9 Months Ended

Sep. 30, 2023

Fair Value Disclosures [Abstract]

Estimated Fair Value of Outstanding Debt Balances

The estimated fair value of our outstanding debt balances as of September 30, 2023 and December 31, 2022 is set forth below (in thousands):

	September 30, 2023				December 31, 2022
	Carrying		Fair		Carrying		Fair
	Value		Value		Value		Value
3.95% Senior Notes Due 2028	$	482,505	$	433,313	$	488,505	$	431,556
5.15% Senior Notes Due 2029		344,895		314,329		347,900		313,164
7.15% Senior Notes Due 2033		400,000		414,880		—		—
Equipment Loans Due 2025		21,659		21,595		—		—
Total debt	$	1,249,059	$	1,184,117	$	836,405	$	744,720