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Net Income Per Share | 9 Months Ended
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Sep. 30, 2021
Earnings Per Share [Abstract] |
Net Income Per Share | NET INCOME PER SHARE Basic and diluted net income per share are calculated using the two-class method. Net income is divided by the weighted-average number of common shares outstanding during the period. Adjustments to the weighted average number of common shares outstanding are made only when such adjustments will dilute net income per common share. Net income is then divided by the weighted-average number of common shares and common share equivalents during the period. The following table reconciles basic and diluted net income per share:
| Three Months Ended September 30, |  | Nine Months Ended September 30,
(dollars and shares in thousands, except per share data) | 2021 |  | 2020 |  | 2021 |  | 2020
Basic Net Income Per Share |  |  |  |  |  |  |
Net income | $ | 71,746 |  |  | $ | 77,944 |  |  | $ | 221,350 |  |  | $ | 152,289 |
Weighted average common shares outstanding | 165,258 |  |  | 164,773 |  |  | 165,144 |  |  | 165,748 |
Basic Net Income Per Share | $ | 0.43 |  |  | $ | 0.47 |  |  | $ | 1.34 |  |  | $ | 0.92 |
Diluted Net Income Per Share |  |  |  |  |  |  |
Net income | $ | 71,746 |  |  | $ | 77,944 |  |  | $ | 221,350 |  |  | $ | 152,289 |
Weighted average common shares outstanding | 165,258 |  |  | 164,773 |  |  | 165,144 |  |  | 165,748 |
Effect of dilutive securities: |  |  |  |  |  |  |
Restricted stock | 660 |  |  | 611 |  |  | 696 |  |  | 586 |
Stock options and appreciation rights | 21 |  |  | 35 |  |  | 22 |  |  | 36 |
Weighted average shares outstanding | 165,939 |  |  | 165,419 |  |  | 165,862 |  |  | 166,370 |
Diluted Net Income Per Share | $ | 0.43 |  |  | $ | 0.47 |  |  | $ | 1.33 |  |  | $ | 0.92 |

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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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