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Net Income Per Share (Tables) | 9 Months Ended
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Sep. 30, 2021
Earnings Per Share [Abstract] |
Summary of Table Reconciling Basic and Diluted Net Income Per Share | 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 Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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