XML 96 R75.htm IDEA: XBRL DOCUMENT v3.6.0.2
STOCKHOLDERS' EQUITY - Other (Details)
$ / shares in Units, $ in Millions
 12 Months Ended
Dec. 31, 2016
USD ($)
MXN / shares
Dec. 31, 2016
USD ($)
$ / shares
shares
Dec. 31, 2015
USD ($)
$ / shares
shares
Dec. 31, 2014
USD ($)
$ / shares
shares
Dec. 31, 2010
MXN / shares
Dec. 31, 2010
$ / shares
Non-controlling interest            
Investment shareholders' interest in Peruvian Branch (as a percent) 0.71% 0.71%        
Employee Stock Purchase 2010 Plan            
Information related to compensation cost            
Stock based compensation expense | $   $ 0.6 $ 0.6 $ 0.6    
Unrecognized compensation expense | $ $ 0.8 $ 0.8 $ 1.4 $ 2.0    
Period over which unrecognized compensation expense expected to be recognized   2 years        
Purchase price for initial subscription (in dollars per share) | (per share)         MXN 26.51 $ 1.28
Stock award activity, Shares            
Outstanding shares at the beginning of the year | shares   2,227,582 2,287,891      
Exercised (in shares) | shares   (826,486) (60,309)      
Outstanding shares at the end of the year | shares   1,401,096 2,227,582 2,287,891    
Unit Weighted Average Grant Date Fair Value            
Outstanding shares at the beginning of the year (in dollars per share) | $ / shares   $ 2.05 $ 2.05      
Exercised (in dollars per share) | $ / shares   2.05 2.05      
Outstanding shares at the end of the year (in dollars per share) | $ / shares   $ 2.05 $ 2.05 $ 2.05    
Employee Stock Purchase 2015 Plan            
Information related to compensation cost            
Stock based compensation expense | $   $ 0.6 $ 0.4      
Unrecognized compensation expense | $ $ 3.8 $ 3.8 $ 4.4      
Purchase price for initial subscription (in dollars per share) | (per share) $ 38.44 $ 1.86        
Stock award activity, Shares            
Outstanding shares at the beginning of the year | shares   2,656,386        
Granted in the period | shares     2,656,386      
Exercised (in shares) | shares   (116,163)        
Outstanding shares at the end of the year | shares   2,540,223 2,656,386      
Unit Weighted Average Grant Date Fair Value            
Outstanding shares at the beginning of the year (in dollars per share) | $ / shares   $ 2.63        
Granted (in dollars per share) | $ / shares     $ 2.63      
Exercised (in dollars per share) | $ / shares   2.63        
Outstanding shares at the end of the year (in dollars per share) | $ / shares   $ 2.63 $ 2.63