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Earnings per Share
 9 Months Ended
Sep. 29, 2018
Earnings Per Share [Abstract]  
Earnings per Share
Earnings per Share

Basic and diluted earnings per share (EPS) are calculated as follows:
 
 
Three Months Ended
 
Nine Months Ended
 
 
September 29,
2018
 
September 30,
2017
 
September 29,
2018
 
September 30,
2017
(In thousands, except per share amounts)
 
 
 
 
Amounts Attributable to Kadant:
 
 
 
 
 
 
 
 
Net Income
 
$
18,784

 
$
13,285

 
$
41,991

 
$
30,332

 
 
 
 
 
 
 
 
 
Basic Weighted Average Shares
 
11,101

 
11,004

 
11,078

 
10,986

Effect of Stock Options, Restricted Stock Units and Employee Stock Purchase Plan Shares
 
320

 
340

 
310

 
296

Diluted Weighted Average Shares
 
11,421

 
11,344

 
11,388

 
11,282

 
 
 
 
 
 
 
 
 
Basic Earnings per Share
 
$
1.69

 
$
1.21

 
$
3.79

 
$
2.76

 
 
 
 
 
 
 
 
 
Diluted Earnings per Share
 
$
1.64

 
$
1.17

 
$
3.69

 
$
2.69



Restricted stock units (RSUs) totaling 11,000 shares of common stock in the third quarter of 2018, 4,000 in the third quarter of 2017, 25,000 in the first nine months of 2018 and 21,000 in the first nine months of 2017 were not included in the computation of diluted EPS, as the effect would have been antidilutive or, for unvested performance-based RSUs, the performance conditions had not been met as of the end of the reporting periods.