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Earnings Per Share (EPS) (Tables)
 12 Months Ended
Dec. 31, 2013
Earnings Per Share [Abstract]  
Schedule of basic and diluted earnings per share
Note 3.   Earnings Per Share (EPS)
 
(thousands, except per share amounts)
 
 
 
 
 
 
 
 
 
 
 
Basic EPS
 
2013
 
 
 
2012
 
 
 
2011
 
Income from continuing operations attributable to MTI 
$
86,074
 
 
$
76,597
 
 
$
70,053
 
Loss from discontinued operations attributable to MTI 
 
(5,744
)
 
 
(2,450
)
 
 
(2,532
)
 
Net income attributable to MTI 
$
80,330
 
 
$
74,147
 
 
$
67,521
 
 
 
 
 
 
 
 
 
 
 
 
 
Weighted average shares outstanding 
 
34,690
 
 
 
35,340
 
 
 
36,018
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Basic earnings per share from continuing operations attributable to MTI
$
2.48
 
 
$
2.17
 
 
$
1.94
 
Basic loss per share from discontinued operations attributable to MTI
 
(0.17
)
 
 
(0.07
)
 
 
(0.07
)
 
Basic earnings per share attributable to MTI  
$
2.31
 
 
$
2.10
 
 
$
1.87
 
 
 
 
 
 
 
 
 
 
 
 
 

Diluted EPS
 
2013
 
 
 
2012
 
 
 
2011
 
Income from continuing operations attributable to MTI  
$
86,074
 
 
$
76,597
 
 
$
70,053
 
Loss from discontinued operations attributable to MTI  
 
(5,744
)
 
 
(2,450
)
 
 
(2,532
)
 
Net income attributable to MTI  
$
80,330
 
 
$
74,147
 
 
$
67,521
 
 
 
 
 
 
 
 
 
 
 
 
 
Weighted average shares outstanding  
 
34,690
 
 
 
35,340
 
 
 
36,018
 
Dilutive effect of stock options  
 
286
 
 
 
189
 
 
 
218
 
Weighted average shares outstanding, adjusted  
 
34,976
 
 
 
35,529
 
 
 
36,236
 
 
 
 
 
 
 
 
 
 
 
 
 
Diluted earnings per share from continuing operations attributable to MTI
$
2.46
 
 
$
2.16
 
 
$
1.93
 
Diluted loss per share from discontinued operations attributable to MTI
 
(0.16
)
 
 
(0.07
)
 
 
(0.07
)
 
Diluted earnings per share attributable to MTI  
$
2.30
 
 
$
2.09
 
 
$
1.86
 

     Options to purchase 2,404 shares and 218,064 shares of common stock for the years ended December 31, 2012 and December 31, 2011, respectively, were not included in the computation of diluted earnings per share because they were anti-dilutive, as the exercise prices of the options were greater than the average market price of the common shares. No options were excluded for the year ended December 31, 2013.