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STOCK BASED COMPENSATION (Summary of Options Outstanding) (Details)
shares in Thousands
12 Months Ended
Dec. 31, 2016
$ / shares
shares
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Number of Options Outstanding 1,780
Weighted Average Remaining Contractual Life 2 years 2 months
Number of Exercisable Options 1,553
$6.00 - $6.99  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Exercise Price, Lower Limit | $ / shares $ 6.00
Exercise Price, Upper Limit | $ / shares $ 6.99
Number of Options Outstanding 426
Weighted Average Remaining Contractual Life 1 month
Number of Exercisable Options 426
$7.00 - $7.99  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Exercise Price, Lower Limit | $ / shares $ 7.00
Exercise Price, Upper Limit | $ / shares $ 7.99
Number of Options Outstanding 422
Weighted Average Remaining Contractual Life 3 years 10 months
Number of Exercisable Options 285
$8.00 - $8.99  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Exercise Price, Lower Limit | $ / shares $ 8.00
Exercise Price, Upper Limit | $ / shares $ 8.99
Number of Options Outstanding 215
Weighted Average Remaining Contractual Life 2 years 6 months
Number of Exercisable Options 200
$9.00 - $9.99  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Exercise Price, Lower Limit | $ / shares $ 9.00
Exercise Price, Upper Limit | $ / shares $ 9.99
Number of Options Outstanding 480
Weighted Average Remaining Contractual Life 3 years 4 months
Number of Exercisable Options 421
$10.00 - $14.50  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Exercise Price, Lower Limit | $ / shares $ 10.00
Exercise Price, Upper Limit | $ / shares $ 14.50
Number of Options Outstanding 237
Weighted Average Remaining Contractual Life 2 years 4 months
Number of Exercisable Options 221