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ASSET RETIREMENT OBLIGATION
12 Months Ended
Dec. 31, 2025
Asset Retirement Obligation Disclosure [Abstract]  
ASSET RETIREMENT OBLIGATION ASSET RETIREMENT OBLIGATION
 The following table presents a reconciliation of the beginning and ending aggregate carrying amount of asset retirement obligation for the years presented below:
Year Ended December 31,
202520242023
(Dollars in thousands)
Balance at beginning of year $129,651 $114,370 $97,660 
Revision in estimated cash flows (8,071)(893)2,056 
Liabilities incurred and acquired 5,664 8,427 8,490 
Accretion expense 8,330 7,747 6,164 
Balance at end of year $135,574 $129,651 $114,370