v2.4.0.6
SHARE-BASED COMPENSATION - Equity Compensation Plan and RSU Acitivity (Details) (USD $)
In Thousands, except Share data, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Restricted Stock Unit Activity [Abstract]      
RSUs issued 306,556 445,000 1,024,000
RSUs forfeited (26,484) (28,000) (85,000)
Net RSUs issued and increase (decrease) to paid-in capital 281,000 417,000 939,000
RSUs vested and released 659,381 886,000 527,000
RSUs issued, Amount $ 2,133 $ 4,721 $ 11,361
RSUs forfeited, Amount (235) (474) (1,242)
Net RSUs issued and increase (decrease) to paid-in capital, Amount $ 1,898 $ 4,247 $ 10,119
Equity Compensation Plan [Line Items]      
Additional shares available for grant during the period 1,500,000    
Shares available for grant 4,200,000    
Maximum
     
Equity Compensation Plan [Line Items]      
General vesting period in years 0 0 10