XML 63 R50.htm IDEA: XBRL DOCUMENT v3.22.1
INVENTORIES (Details) - USD ($)
$ in Thousands
Mar. 31, 2022
Dec. 31, 2021
INVENTORIES    
Raw materials $ 174,515 $ 143,394
Work-in-process 108,927 97,834
Finished goods 316,339 298,691
Total $ 599,781 $ 539,919
Percentage of total inventories valued using the LIFO method (as a percent) 36.00% 36.00%
Excess of current cost over LIFO cost $ 121,064 $ 114,176