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INVENTORIES (Details) - USD ($)
$ in Thousands
Jun. 30, 2023
Dec. 31, 2022
INVENTORIES    
Raw materials $ 179,968 $ 181,076
Work-in-process 175,080 164,778
Finished goods 319,706 319,597
Total $ 674,754 $ 665,451
Percentage of total inventories valued using the LIFO method (as a percent) 35.00% 38.00%
Excess of current cost over LIFO cost $ 136,411 $ 133,909