v2.4.0.6
SHAREHOLDERS' EQUITY (DETAILS 3) (USD $)
12 Months Ended
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2009
Warrants Exercised [Line Items]      
Dividends paid $ 206,455,000 $ 108,302,000 $ 112,984,000
Founders Warrants [Member]
     
Warrants Exercised [Line Items]      
Number of shares issued during the period on exercise of warrants 12,893,483    
Number of warrants exercised during the period 19,827,760    
Dividends paid 93,000,000    
Number of warrants outstanding   19,787,712  
Exercise price   $ 12.31