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STOCK BASED COMPENSATION (Summary of Options Outstanding) (Details)
shares in Thousands
9 Months Ended
Sep. 30, 2015
$ / shares
shares
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Number of Options Outstanding 2,925
Weighted Average Remaining Contractual Life 2 years 4 months 24 days
Number of Exercisable Options 2,182
$1.00 - $3.99 [Member]  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Exercise Price, Lower Limit | $ / shares $ 1.00
Exercise Price, Upper Limit | $ / shares $ 3.99
Number of Options Outstanding 298
Weighted Average Remaining Contractual Life 4 months 24 days
Number of Exercisable Options 298
$4.00 - $5.99 [Member]  
Share-based Compensation, Shares Authorized under Stock Option Plans, Exercise Price Range [Line Items]  
Exercise Price, Lower Limit | $ / shares $ 4.00
Exercise Price, Upper Limit | $ / shares $ 5.99
Number of Options Outstanding 366
Weighted Average Remaining Contractual Life 1 year 1 month 10 days
Number of Exercisable Options 366
$6.00 - $8.99 [Member]  
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 $ 8.99
Number of Options Outstanding 1,542
Weighted Average Remaining Contractual Life 3 years 6 months
Number of Exercisable Options 1,065
$9.00 - $14.50 [Member]  
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 $ 14.50
Number of Options Outstanding 719
Weighted Average Remaining Contractual Life 4 years 3 months
Number of Exercisable Options 452