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EARNINGS PER SHARE (Tables) | 6 Months Ended
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Jun. 30, 2021
Earnings Per Share [Abstract] |
Schedule of Basic and Diluted Earnings per Common Share | Basic and diluted earnings per common share were calculated as follows (in thousands, except per share amounts):
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2021 |  | 2020 |  | 2021 |  | 2020
Basic weighted average number of shares outstanding | 37,818 |  |  | 37,599 |  |  | 37,731 |  |  | 37,842 |
Effect of dilutive securities: |  |  |  |  |  |  |
Unvested restricted stock | 559 |  |  | 570 |  |  | 626 |  |  | 670 |
Diluted average shares outstanding | 38,377 |  |  | 38,169 |  |  | 38,357 |  |  | 38,512 |
Net earnings | $ | 167,389 |  |  | $ | 90,678 |  |  | $ | 299,232 |  |  | $ | 161,830 |
Basic earnings per share | $ | 4.43 |  |  | $ | 2.41 |  |  | $ | 7.93 |  |  | $ | 4.28 |
Diluted earnings per share | $ | 4.36 |  |  | $ | 2.38 |  |  | $ | 7.80 |  |  | $ | 4.20 |

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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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