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INCOME TAXES (Details)
3 Months Ended 9 Months Ended
Sep. 30, 2020
Sep. 30, 2019
Sep. 30, 2020
Sep. 30, 2019
Reconciliation of income taxes based on the federal statutory rate and the effective income tax rate        
Effective tax rate (as a percent) 15.63% 0.40% (1.20%) 0.60%