STOCKHOLDERS' EQUITY 5 (Details) (USD $)		3 Months Ended	12 Months Ended			9 Months Ended	12 Months Ended
	Dec. 31, 2012	Jun. 30, 2011 Restricted Stock Units R S U Performance Based [Member]	Dec. 31, 2012 Restricted Stock Units R S U Performance Based [Member]	Dec. 31, 2011 Restricted Stock Units R S U Performance Based [Member]	Dec. 31, 2010 Restricted Stock Units R S U Performance Based [Member]	Sep. 30, 2012 Performance Shares [Member] performance_period	Dec. 31, 2012 Performance Shares [Member]	Dec. 31, 2011 Performance Shares [Member]	Dec. 31, 2010 Performance Shares [Member]
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
Stock units vested (in shares)		8,500,000		8,485,000
Restricted Stock, Shares Issued Net of Shares for Tax Withholdings				5,100,000
Restricted stock units withheld for taxes (in shares)				3,300,000
Stock units vested (in dollars per share)			$ 4.22	$ 4.22
Cumulative recognized stock-based compensation expense				$ 6,500,000	$ 24,800,000		$ 12,700,000	$ 7,500,000
Number of performance periods						3
Stock units issued (in shares)							338,000	3,474,000	472,000
Performance period						1 year