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Earnings per Share | 12 Months Ended
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Dec. 28, 2019
Earnings Per Share [Abstract] |
Earnings Per Share | Earnings per Share Basic and diluted EPS were calculated as follows:
(In thousands, except per share amounts) |  | December 28, 2019 |  | December 29, 2018 |  | December 30, 2017
Net Income Attributable to Kadant |  | $ | 52,068 |  |  | $ | 60,413 |  |  | $ | 31,092 |
Basic Weighted Average Shares |  | 11,235 |  |  | 11,086 |  |  | 10,991 |
Effect of Stock Options, Restricted Stock Units and Employee Stock Purchase Plan Shares |  | 222 |  |  | 314 |  |  | 321 |
Diluted Weighted Average Shares |  | 11,457 |  |  | 11,400 |  |  | 11,312 |
Basic Earnings per Share |  | $ | 4.63 |  |  | $ | 5.45 |  |  | $ | 2.83 |
Diluted Earnings per Share |  | $ | 4.54 |  |  | $ | 5.30 |  |  | $ | 2.75 |
The effect of outstanding and unvested RSUs of the Company's common stock totaling 24,000 shares in 2019, 18,700 shares in 2018, and 15,600 shares in 2017 was not included in the computation of diluted EPS for the respective periods 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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