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Earnings Per Share | 12 Months Ended
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Dec. 31, 2020
Earnings Per Share [Abstract] |
Earnings Per Share | EARNINGS PER SHARE The following table sets forth the computation of basic and diluted earnings per common share:
| Year ended December 31, | 2020 |  | 2019 |  | 2018 |
| (common shares in thousands) |  |  |  |  |  |
| Numerator: |  |  |  |  |  |
| Net income available to RenaissanceRe common shareholders | $ | 731,482 |  |  | $ | 712,042 |  |  | $ | 197,276 |  |
| Amount allocated to participating common shareholders (1) | (8,968) |  |  | (8,545) |  |  | (2,121) |  |
| Net income allocated to RenaissanceRe common shareholders | $ | 722,514 |  |  | $ | 703,497 |  |  | $ | 195,155 |  |
| Denominator: |  |  |  |  |  |
| Denominator for basic income per RenaissanceRe common share - weighted average common shares | 47,103 |  |  | 43,119 |  |  | 39,732 |  |
| Per common share equivalents of non-vested shares | 75 |  |  | 56 |  |  | 23 |  |
| Denominator for diluted income per RenaissanceRe common share - adjusted weighted average common shares and assumed conversions | 47,178 |  |  | 43,175 |  |  | 39,755 |  |
| Net income available to RenaissanceRe common shareholders per common share – basic | $ | 15.34 |  |  | $ | 16.32 |  |  | $ | 4.91 |  |
| Net income available to RenaissanceRe common shareholders per common share – diluted | $ | 15.31 |  |  | $ | 16.29 |  |  | $ | 4.91 |  |
(1)Represents earnings and dividends attributable to holders of unvested shares issued pursuant to the Company's stock compensation plans.

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