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STOCKHOLDERS' EQUITY 5 (Details) (USD $)	3 Months Ended
STOCKHOLDERS' EQUITY 5 (Details) (USD $)	Mar. 31, 2013 performance_period	Mar. 31, 2012
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based Compensation Arrangement by Share-based Payment Award, Value Assumed as Part of Acuisition	400,000
Performance Shares [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Cumulative recognized stock-based compensation expense	$ 400,000	$ 4,300,000
Number of performance periods	3
Stock units issued (in shares)		200,000
Performance period	1 year
Performance-based restricted stock unit credit	$ 2,400,000

Represents the expense recognized during the period arising from equity-based compensation arrangements (for example, shares of stock, unit, stock options or other equity instruments) with employees, directors and certain consultants qualifying for treatment as employees.

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