EMPLOYER SPONSORED BENEFIT PLANS - Recorded Liabilities and Amounts Recognized in Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	Dec. 31, 2020	Dec. 31, 2019
Amounts recognized in the Consolidated Balance Sheets consist of:
Noncurrent liabilities	$ 21,691	$ 18,957
United States
Amounts recognized in the Consolidated Balance Sheets consist of:
Current liabilities	0	787
Noncurrent liabilities	11,881	10,376
Total liabilities	11,881	11,163
Loss recognized in Accumulated Other Comprehensive Loss, net of tax, consist of:
Net actuarial loss	$ 4,503	$ 2,579

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Amount, after tax, of accumulated other comprehensive income (loss) for gain (loss) of defined benefit plan, that has not been recognized in net periodic benefit (cost) credit.

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Amount of liability, recognized in statement of financial position, for defined benefit pension and other postretirement plans, classified as current.

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