Asset Retirement Obligations (Tables)

3 Months Ended

Mar. 31, 2024

Asset Retirement Obligation Disclosure [Abstract]

Schedule of Changes in Asset Retirement Obligation Liabilities

The components of the changes in the asset retirement obligation liabilities were:

(Dollars in thousands)	Short-Term Portion		Long-Term Portion		Total
Balance as of December 31, 2023	$	206	$	7,191	$	7,397
Accretion	147		27		174
Amounts paid	(129)		—		(129)
Reclassifications	13		(13)		—
Balance as of March 31, 2024	$	237	$	7,205	$	7,442