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STOCKHOLDERS' EQUITY 5 (Details) (USD $)
In Thousands, except Per Share data, unless otherwise specified
12 Months Ended 3 Months Ended 12 Months Ended 12 Months Ended
Dec. 31, 2013
Restricted Stock Units R S U Non Performance Based [Member]
Dec. 31, 2012
Restricted Stock Units R S U Non Performance Based [Member]
Dec. 31, 2011
Restricted Stock Units R S U Non Performance Based [Member]
Dec. 31, 2013
Performance Shares [Member]
Dec. 31, 2013
Performance Shares [Member]
Dec. 31, 2012
Performance Shares [Member]
Dec. 31, 2011
Performance Shares [Member]
Dec. 31, 2012
Restricted Stock Units R S U Performance Based [Member]
Dec. 31, 2013
Restricted Stock Units (RSUs) [Member]
Dec. 31, 2012
Restricted Stock Units (RSUs) [Member]
Dec. 31, 2011
Restricted Stock Units (RSUs) [Member]
Dec. 31, 2010
Restricted Stock Units (RSUs) [Member]
Dec. 31, 2013
Ozmo Inc.
Restricted Stock Units (RSUs) [Member]
Dec. 31, 2013
Ozmo Inc.
Stock Options [Member]
Restricted stock units, Number of Shares                            
Balance at the end of the period (in shares)                 21,137 21,944 23,187 29,250    
Stock units issued (in shares) 7,922 8,507 6,343   1,048 338 3,474           300 100
Stock units vested (in shares) (7,271) (7,975) (6,345)       (8,485) (330)            
Stock units cancelled (in shares) (2,084) (1,783) (1,025)   (422)   (25)              
Balance at the end of the period (in shares)                 21,137 21,944 23,187 29,250    
Restricted stock units, Weighted Average Fair Value Per Share                            
Weighted-average fair value of the rights to purchase shares (in dollars per share)                 $ 8.84 $ 8.71 $ 8.99 $ 5.74 $ 6.17 $ 0.81
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Grants in Period, Weighted Average Grant Date Fair Value $ 7.36 $ 6.11 $ 10.88 $ 7.33   $ 9.19 $ 13.94              
Stock units vested (in dollars per share) $ 7.30 $ 6.80 $ 5.20       $ 4.22 $ 12.31            
Stock units cancelled (in dollars per share) $ 8.25 $ 7.81 $ 6.80   $ 13.50   $ 9.77              
Balance at the end of the period (in dollars per share)                 $ 8.84 $ 8.71 $ 8.99 $ 5.74 $ 6.17 $ 0.81