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Inventories (Details) - USD ($)
$ in Thousands
Jun. 30, 2024
Dec. 31, 2023
Lime and limestone inventories:    
Raw materials $ 8,716 $ 7,834
Finished goods 4,197 3,107
Total 12,913 10,941
Parts inventories 14,387 13,372
Total inventories $ 27,300 $ 24,313