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Earnings per Share | 3 Months Ended
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Mar. 31, 2019
Earnings Per Share [Abstract] |
Earnings per Share | lowing table sets forth the computation of basic and diluted earnings per share using the two class method (in thousands, except per share data):
| Three months ended March 31,
2019 | 2018
Net income available to common shareholders | $ | 21,619 |  | $ | 17,616 |
Less: earnings allocated to participating securities | (186 | ) | (195 | )
Net earnings allocated to common shareholders | $ | 21,433 |  | $ | 17,421 |
Distributed earnings allocated to common stock | $ | 8,661 |  | $ | 7,023 |
Undistributed earnings allocated to common stock | 12,772 |  | 10,398 |
Net earnings allocated to common shareholders | $ | 21,433 |  | $ | 17,421 |
Average shares outstanding | 16,411 |  | 15,414 |
Effect of dilutive securities: |  |
Employee stock awards | 18 |  | 22 |
Shares for diluted earnings per share | 16,429 |  | 15,436 |
Basic earnings per share | $ | 1.31 |  | $ | 1.13 |
Diluted earnings per share | $ | 1.30 |  | $ | 1.13 |
Anti-dilutive options | — |  | 2 |
Anti-dilutive options are not included in the computation of diluted earnings per share because the options’ exercise price was greater than the average market price of the common shares and therefore, the effect would have been anti-dilutive.

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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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