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IMPAIRMENT AND OTHER CHARGES (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
IMPAIRMENT AND OTHER CHARGES        
Long Lived Asset Impairments (1) $ 0 $ 0 $ 204,765 $ 0
Severance costs 0 1,268 1,882 1,268
Abandonment of assets 0 34,575 0 34,575
Assets held for sale write down 0 14,326 0 14,326
Retirement of equipment 0 15,953 0 15,953
Inventory write-downs 0 5,501 0 5,501
Other (2) 0 27 528 27
Total $ 0 $ 71,650 $ 207,175 $ 71,650