XML 94 R81.htm IDEA: XBRL DOCUMENT v3.23.3
ENVIRONMENTAL AND NATURAL RESOURCE DAMAGE LIABILITIES - Schedule of Liabilities (Details)
$ in Thousands
9 Months Ended
Sep. 30, 2023
USD ($)
Accrual for Environmental Loss Contingencies [Roll Forward]  
Beginning balance, non-current portion $ 14,418
Beginning balance, plus: current portion 1,175
Beginning balance 15,593
Expenditures charged to liabilities (304)
Increase to liabilities 411
Ending balance 15,700
Ending balance, less: current portion (6,689)
Ending balance, non-current portion $ 9,011