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SHAREHOLDERS' EQUITY - Narrative (Details) - USD ($)
$ / shares in Units, $ in Thousands
3 Months Ended
Dec. 11, 2020
Dec. 01, 2020
Sep. 09, 2020
Dec. 31, 2020
Dec. 31, 2019
Sep. 30, 2020
Stockholders' Equity Note [Abstract]            
Number of common shares authorized to be repurchased (up to) (in shares)       4,000,000    
Purchases of common shares (in shares)       0 0  
Cash dividends declared (in dollars per share) $ 0.25   $ 0.25 $ 0.25 $ 0.71  
Cash dividends paid (in dollars per share)   $ 0.25        
Dividends payable       $ 27,378   $ 27,226