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Earnings per Share | 6 Months Ended
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Jun. 30, 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 |  | Six Months Ended
|  | June 30, 2018 |  | July 1, 2017 |  | June 30, 2018 |  | July 1, 2017
(In thousands, except per share amounts) |  |  |  |
Amounts Attributable to Kadant: |  |  |  |  |  |  |  |
Net Income |  | $ | 12,349 |  |  | $ | 8,096 |  |  | $ | 23,207 |  |  | $ | 17,047 |
Basic Weighted Average Shares |  | 11,092 |  |  | 11,001 |  |  | 11,067 |  |  | 10,976 |
Effect of Stock Options, Restricted Stock Units and Employee Stock Purchase Plan Shares |  | 308 |  |  | 295 |  |  | 304 |  |  | 274 |
Diluted Weighted Average Shares |  | 11,400 |  |  | 11,296 |  |  | 11,371 |  |  | 11,250 |
Basic Earnings per Share |  | $ | 1.11 |  |  | $ | 0.74 |  |  | $ | 2.10 |  |  | $ | 1.55 |
Diluted Earnings per Share |  | $ | 1.08 |  |  | $ | 0.72 |  |  | $ | 2.04 |  |  | $ | 1.52 |
Restricted stock units (RSUs) totaling 34,000 shares of common stock in the second quarter of 2018, 19,000 in the second quarter of 2017, 32,000 in the first six months of 2018 and 29,000 in the first six 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.

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 + Details
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