Net Income Available to Stockholders and Basic Net Income per Share (Tables)
 12 Months Ended
Dec. 31, 2016
Net Income Available to Stockholders and Basic Net Income per Share [Abstract]  
Computation of Basic and Diluted Earnings Per Share
The following table sets forth the computation of basic and diluted earnings per share for the three-year period ended December 31:
 
 
2016
  
2015
  
2014
 
          
Numerator for earnings per share
         
Net income attributable to TSM available to stockholders
 
$
17,438
  
$
52,121
  
$
65,660
 
Denominator for basic earnings per share –
            
Weighted average of common shares
  
24,454,435
   
25,674,079
   
27,102,127
 
Effect of dilutive securities
  
56,658
   
87,662
   
86,705
 
Denominator for diluted earnings per share
  
24,511,093
   
25,761,741
   
27,188,832
 
Basic net income per share attributable to TSM
 
$
0.71
  
$
2.03
  
$
2.42
 
Diluted net income per share attributable to TSM
 
$
0.71
  
$
2.02
  
$
2.41