XML 68 R72.htm IDEA: XBRL DOCUMENT v2.4.0.8
Stock Based Compensation (Details) (Detail) (Stock options, USD $)
12 Months Ended
Dec. 31, 2013
Minimum
 
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Fair value of common shares $ 0.25
Risk free interest rate 0.50%
Expected award life (years) 0 years
Expected volatility 38.00%
Maximum
 
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]  
Fair value of common shares $ 7.24
Risk free interest rate 0.59%
Expected award life (years) 2 years 6 months
Expected volatility 40.00%