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SHAREHOLDERS' EQUITY (Details) - USD ($)
$ / shares in Units, $ in Thousands
1 Months Ended 12 Months Ended
Aug. 06, 2019
Jan. 28, 2019
Feb. 29, 2020
Dec. 31, 2019
Dec. 31, 2018
Dec. 31, 2017
Dec. 31, 2014
Class of Stock [Line Items]              
Share-based Compensation Arrangement by Share-based Payment Award, Options, Grants in Period, Weighted Average Grant Date Fair Value       $ 6.63 $ 3.02 $ 3.05  
Employee Service Share-based Compensation, Nonvested Awards, Compensation Not yet Recognized, Share-based Awards Other than Options       $ 7,815      
Employee Service Share-based Compensation, Nonvested Awards, Compensation Cost Not yet Recognized, Period for Recognition       1 year 26 days      
Stock Repurchase Program, Authorized Amount             $ 3,000
Treasury Stock, Shares       29,471,614 28,911,766    
Additional Stock Repurchase Program Authorized Amount     $ 12,000   $ 130,000    
Dividend payable Percent Per Share $ 0.12 $ 0.11          
Dividends Payable $ 3,502 $ 3,218          
Dividends Payable, Date to be Paid Sep. 03, 2019 Feb. 19, 2019          
Dividends Payable, Date of Record Aug. 19, 2019 Feb. 07, 2019          
Share Repurchase Program [Member]              
Class of Stock [Line Items]              
Treasury Stock, Shares       29,471,614      
Stock Redeemed or Called During Period, Value       $ 137,868      
Stock Repurchased and Retired During Period, Value       $ 8,002      
Stock Repurchased and Retired During Period, Shares       559,848      
Employee And Non-employee Stock Option Plan [Member]              
Class of Stock [Line Items]              
Share-based Compensation Arrangement by Share-based Payment Award, Number of Shares Authorized       1,878,993      
Share-based Compensation Arrangement by Share-based Payment Award, Options, Exercises in Period, Intrinsic Value       $ 9,352 $ 6,407 $ 1,562