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Earnings per Share (Tables) | 6 Months Ended
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Jun. 30, 2021
Earnings Per Share [Abstract] |
Computation of Net Income Per Share, Basic and Diluted | The following table sets forth the computation of net income (loss) per share, on a basic and diluted basis, for the periods indicated (share count and dollar amounts other than per-share amounts in the table are in thousands):
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2021 |  | 2020 |  | 2021 |  | 2020
Basic: |  |  |  |  |  |  |
Net income (loss) | $ | 95,027 |  |  | $ | (93,103) |  |  | $ | 101,896 |  |  | $ | (126,113) |
Less income allocated to participating securities | (1,285) |  |  | — |  |  | (1,451) |  |  | (236) |
Net income (loss) attributable to common stock | $ | 93,742 |  |  | $ | (93,103) |  |  | $ | 100,445 |  |  | $ | (126,349) |
Earnings (loss) per share, basic | $ | 5.49 |  |  | $ | (5.85) |  |  | $ | 6.04 |  |  | $ | (7.93) |
Weighted-average shares outstanding | 17,064 |  |  | 15,902 |  |  | 16,618 |  |  | 15,927 |
Diluted: |  |  |  |  |  |  |
Net income (loss) | $ | 95,027 |  |  | $ | (93,103) |  |  | $ | 101,896 |  |  | $ | (126,113) |
Less income allocated to participating securities | (1,284) |  |  | — |  |  | (1,449) |  |  | (236) |
Net income (loss) attributable to common stock | $ | 93,743 |  |  | $ | (93,103) |  |  | $ | 100,447 |  |  | $ | (126,349) |
Earnings (loss) per share, diluted | $ | 5.49 |  |  | $ | (5.85) |  |  | $ | 6.04 |  |  | $ | (7.93) |
Weighted-average shares outstanding | 17,064 |  |  | 15,902 |  |  | 16,618 |  |  | 15,927 |
Dilutive effect of stock options and restricted stock | 123 |  |  | — |  |  | 128 |  |  | — |
Adjusted weighted-average shares outstanding under treasury stock method | 17,187 |  |  | 15,902 |  |  | 16,746 |  |  | 15,927 |
Participating securities excluded under two-class method | (114) |  |  | — |  |  | (114) |  |  | — |
Adjusted weighted-average shares outstanding under two-class method | 17,073 |  |  | 15,902 |  |  | 16,632 |  |  | 15,927 |

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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=6371337&loc=d3e3550-109257 + Details
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