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Earnings Per Share (Tables) | 9 Months Ended
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Sep. 30, 2022
Earnings Per Share [Abstract] |
Basic and Diluted Earnings Per Share |
| Three months ended |  | Nine months ended
| September 30, |  | September 30,
| 2022 |  | 2021 |  | 2022 |  | 2021
Net income | $ | 257,138 |  | $ | 204,434 |  | $ | 675,374 |  | $ | 519,509
Shares: |  |  |  |  |  |  |  |  |  |  |
Weighted-average number of common shares outstanding (for basic calculation) |  | 27,773 |  |  | 28,150 |  |  | 27,907 |  |  | 28,137
Dilutive stock awards |  | 183 |  |  | 325 |  |  | 209 |  |  | 383
Weighted-average number of common shares outstanding (for diluted calculation) |  | 27,956 |  |  | 28,475 |  |  | 28,116 |  |  | 28,520
Basic earnings per share | $ | 9.26 |  | $ | 7.26 |  | $ | 24.20 |  | $ | 18.46
Diluted earnings per share | $ | 9.20 |  | $ | 7.18 |  | $ | 24.02 |  | $ | 18.22
Stock Awards Excluded from the Calculation of Diluted EPS |
| Three months ended |  | Nine months ended
| September 30, |  | September 30,
| 2022 |  | 2021 |  | 2022 |  | 2021
Stock awards subject to performance conditions |  | 61 |  |  | 75 |  |  | 60 |  |  | 74
Stock awards that were antidilutive |  | 167 |  |  | 3 |  |  | 164 |  |  | 42
Total stock awards excluded from diluted earnings per share |  | 228 |  |  | 78 |  |  | 224 |  |  | 116

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- Definition Stock awards excluded from the calculation of diluted EPS - consisting of awards subject to performance conditions and awards that were antidilutive. + References No definition available. + Details
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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 https://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257 + Details
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