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INCOME TAXES (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Jun. 30, 2021
Jun. 30, 2020
Jun. 30, 2021
Jun. 30, 2020
Income Tax Disclosure [Abstract]        
Effective tax rate (as a percent) 13.90% 9.20% 25.80% 4.00%
Impact of accounting method changes $ 400   $ 400  
Impact of foreign earnings taxed at higher rates 200      
Valuation allowance activity 300 $ 500 500 $ 700
Goodwill impairment   400   48,700
Impact of change in assertion of unremitted foreign earnings     600  
Impairment of goodwill and other long-lived assets $ 0 $ 0 $ 0 $ 61,109