SHARE-BASED COMPENSATION PLAN (Details 2) (Stock options, USD $)
12 Months Ended
Dec. 31, 2013
Dec. 31, 2012
Dec. 31, 2011
Share Incentive Plan
     
Options outstanding      
Number outstanding (in shares) 2,140,191    
Weighted average remaining contractual life 3 years 4 months 24 days    
Weighted average exercise price (in dollars per share) $ 4.37    
Aggregate intrinsic value (in dollars) $ 6,013,406    
Options exercisable      
Number exercisable (in shares) 2,134,557    
Weighted average remaining contractual life 3 years 4 months 20 days    
Weighted average exercise price (in dollars per share) $ 4.36    
Aggregate intrinsic value (in dollars) 6,008,441    
Number of options exercised (in shares) 691,372 401,179 1,007,740
Total intrinsic value of options exercised (in dollars) 1,226,000 1,881,000 11,142,000
2011 Equity Incentive Plan
     
Options outstanding      
Number outstanding (in shares) 245,616    
Weighted average remaining contractual life 8 years 14 days    
Weighted average exercise price (in dollars per share) $ 7.38    
Aggregate intrinsic value (in dollars) 3,650    
Options exercisable      
Number exercisable (in shares) 20,433    
Weighted average remaining contractual life 7 years 10 months 10 days    
Weighted average exercise price (in dollars per share) $ 8.79    
VanceInfo 2005 Stock Option Plan
     
Options outstanding      
Number outstanding (in shares) 806,792    
Weighted average remaining contractual life 2 years 3 months 18 days    
Weighted average exercise price (in dollars per share) $ 2.01    
Aggregate intrinsic value (in dollars) 4,153,648    
Options exercisable      
Number exercisable (in shares) 806,792    
Weighted average remaining contractual life 2 years 3 months 18 days    
Weighted average exercise price (in dollars per share) $ 2.01    
Aggregate intrinsic value (in dollars) 4,153,648    
Number of options exercised (in shares) 223,715 61,340  
VanceInfo 2007 Share Incentive Plan
     
Options outstanding      
Number outstanding (in shares) 1,911,859    
Weighted average remaining contractual life 2 years 7 months 20 days    
Weighted average exercise price (in dollars per share) $ 7.63    
Aggregate intrinsic value (in dollars) 567,787    
Options exercisable      
Number exercisable (in shares) 1,316,968    
Weighted average remaining contractual life 2 years 3 months    
Weighted average exercise price (in dollars per share) $ 7.51    
Aggregate intrinsic value (in dollars) $ 537,201    
Number of options exercised (in shares) 111,844 25,908