XML 149 R98.htm IDEA: XBRL DOCUMENT v3.25.0.1
ACCRUED WORKERS' COMPENSATION AND PNEUMOCONIOSIS BENEFITS - Balance Sheet (Details) - USD ($)
$ in Thousands
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
ACCRUED WORKERS' COMPENSATION AND PNEUMOCONIOSIS BENEFITS      
Workers' compensation claims $ 47,870 $ 47,975 $ 49,452
Pneumoconiosis benefit claims 124,297 132,444  
Total obligations 172,167 180,419  
Less current portion (14,838) (15,913)  
Non-current obligations $ 157,329 $ 164,506