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OTHER BALANCE SHEET CAPTIONS - Components of Accrued Expenses (Details) - USD ($)
$ in Thousands
Dec. 31, 2021
Dec. 31, 2020
Balance Sheet Related Disclosures [Abstract]    
Employee benefit plans $ 1,427 $ 3,033
Salaries and wages 16,466 12,607
Property taxes 1,495 1,461
Current operating lease liabilities 2,865 2,112
Other 2,616 1,432
Total $ 24,869 $ 20,645