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Earnings Per Share | 9 Months Ended
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Sep. 30, 2020
Earnings Per Share [Abstract] |
Earnings Per Share | Earnings Per Share Basic earnings per share represent income available to common shareholders divided by the weighted-average number of common shares outstanding during the period. Diluted earnings per share reflect additional common shares that would have been outstanding if dilutive potential common shares had been issued, as well as any adjustments to income that would result from assumed issuance. Potential common shares that may be issued by the Company relate to outstanding stock options and restricted stock units (RSUs), and are determined using the treasury stock method. Earnings per share have been computed based on the following:
| Three months ended September 30,
(in thousands) | 2020 |  | 2019
Net income | $ | 17,606 |  |  | $ | 23,395 |
Average number of common shares outstanding | 29,764 |  |  | 30,509 |
Effect of dilutive stock options and restricted stock | 80 |  |  | 120 |
Average number of common shares outstanding used to calculate diluted earnings per share | 29,844 |  |  | 30,629 |
Options excluded from diluted earnings per share because of their antidilutive effect | — |  |  | 42 |
| Nine months ended September 30,
(in thousands) | 2020 |  | 2019
Net income | $ | 41,157 |  |  | $ | 69,182 |
Average number of common shares outstanding | 29,971 |  |  | 30,464 |
Effect of dilutive stock options and restricted stock | 112 |  |  | 179 |
Average number of common shares outstanding used to calculate diluted earnings per share | 30,083 |  |  | 30,643 |
Options excluded from diluted earnings per share because of their antidilutive effect | — |  |  | 42 |

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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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