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Earnings Per Share | 9 Months Ended
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Sep. 30, 2021
Earnings Per Share [Abstract] |
Earnings Per Share | Earnings Per Share Basic net income per share is calculated by dividing net income by the weighted average number of shares of common stock outstanding during the period. Diluted net income per share assumes the conversion of all potentially dilutive securities and is calculated by dividing net income by the sum of the weighted average number of shares of common stock outstanding plus all potentially dilutive securities. Dilutive common shares consist primarily of stock options, restricted stock awards and performance restricted stock units. The following table sets forth the computation of basic and diluted earnings per share:
| Three Months Ended |  | Nine Months Ended
| September 30, 2021 |  | September 30, 2020 |  | September 30, 2021 |  | September 30, 2020
Numerator: | (in thousands, except share and per share data)
Net income | $ | 15,581 |  |  | $ | 20,460 |  |  | $ | 52,572 |  |  | $ | 60,117 |
Denominator: |  |  |  |  |  |  |
Basic weighted average shares | 52,420,711 |  |  | 52,260,551 |  |  | 52,392,300 |  |  | 52,174,705 |
Effect of dilutive stock options, restricted stock | 1,125,802 |  |  | 890,744 |  |  | 1,272,697 |  |  | 780,344 |
and performance awards |  |  |  |  |  |  |
Diluted weighted average shares | 53,546,513 |  |  | 53,151,295 |  |  | 53,664,997 |  |  | 52,955,049 |
Earnings per share: |  |  |  |  |  |  |
Basic | $ | 0.30 |  |  | $ | 0.39 |  |  | $ | 1.00 |  |  | $ | 1.15 |
Diluted | $ | 0.29 |  |  | $ | 0.38 |  |  | $ | 0.98 |  |  | $ | 1.14 |
Anti-dilutive shares: |  |  |  |  |  |  |
Shares | 375,428 |  |  | 118,832 |  |  | 291,236 |  |  | 473,295 |

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- Definition The entire disclosure for earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109243012&loc=SL65017193-207537 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -URI http://asc.fasb.org/topic&trid=2144383 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3630-109257 + Details
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