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SHARE REPURCHASE PROGRAMS (Details) - USD ($)
$ in Thousands
3 Months Ended 9 Months Ended
Sep. 30, 2019
Sep. 30, 2018
Sep. 30, 2019
Sep. 30, 2018
Dec. 31, 2017
Accelerated Share Repurchases [Line Items]          
Common stock repurchases $ 3,206 $ 10,459 $ 24,426 $ 27,680  
December 2017 Program          
Accelerated Share Repurchases [Line Items]          
Common stock repurchases     $ 24,000 $ 28,000  
Common Stock          
Accelerated Share Repurchases [Line Items]          
Repurchased and retired shares (in shares) 62,695 134,494 407,809 368,889  
Common stock repurchases $ 31 $ 67 $ 204 $ 184  
Common Stock | December 2017 Program          
Accelerated Share Repurchases [Line Items]          
Repurchased and retired shares (in shares)     408,000 369,000  
December 2017 Program          
Accelerated Share Repurchases [Line Items]          
Maximum number of share repurchases authorization (in shares)         1,500,000