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SIGNIFICANT ACCOUNTING POLICIES (Details 8)
In Millions, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Stock Based Compensation  
Number of stock-based compensation plans 1
Number of shares of available for future issuance 1.5
Restricted stock
 
Stock Based Compensation  
Minimum period for vesting of awards (in years) P1Y
Maximum period for vesting of awards (in years) P4Y