STOCK-BASED COMPENSATION (Fair value assumptions) (Details)	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Share-based Compensation Arrangement by Share-based Payment Award, Fair Value Assumptions and Methodology [Abstract]
Risk-free interest rate, minimum	1.06%	0.83%	0.99%
Risk-free interest rate, maximum	1.89%	1.14%	2.16%
Dividend yield	0.00%	0.00%	0.00%
Volatility factors, minimum	48.20%	54.60%	39.60%
Volatility factors, maximum	48.40%	61.30%	62.50%
Weighted average expected life (in years)	5 years 10 months 13 days	6 years 5 months 16 days	6 years 3 months