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Stock-Based Compensation (Tables) | 3 Months Ended
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Mar. 31, 2022
Share-based Payment Arrangement [Abstract] |
Summary of Grants Awarded | The following table summarizes the grants awarded during the three months ended March 31, 2022:
Grant date |  | Restricted stock |  | Grant date fair value of restricted stock |  | Performance shares |  | Grant date fair value of performance shares
February 22, 2022 |  | 1,700,619 |  |  | $ | 4.21 |  |  | 1,067,118 |  |  | $ | 4.38 |
Share-based Payment Arrangement, Restricted Stock and Restricted Stock Unit, Activity | The following table summarizes restricted stock activity for the years ended March 31, 2022, 2021, and 2020:
| Restricted Stock |  |
| Number of Shares |  | Weighted Average Grant Date Fair Value |  |  |  |
Outstanding at December 31, 2018 | 1,541,648 |  |  | $ | 7.14 |  |  |  |  |
Granted | 1,586,590 |  |  | 4.90 |  |  |  |  |
Vested | (797,025) |  |  | 6.36 |  |  |  |  |
Canceled/Forfeited | (146,538) |  |  | 5.70 |  |  |  |  |
Outstanding at December 31, 2019 | 2,184,675 |  |  | $ | 5.89 |  |  |  |  |
Granted | 1,676,634 |  |  | 5.13 |  |  |  |  |
Vested | (928,778) |  |  | 6.46 |  |  |  |  |
Canceled/Forfeited | (207,807) |  |  | 5.36 |  |  |  |  |
Outstanding at December 31, 2020 | 2,724,724 |  |  | $ | 5.26 |  |  |  |  |
Granted | 932,442 |  |  | 8.88 |  |  |  |  |
Vested | (1,179,857) |  |  | 5.53 |  |  |  |  |
Canceled/Forfeited | (332,505) |  |  | 5.83 |  |  |  |  |
Outstanding at December 31, 2021 | 2,144,804 |  |  | $ | 6.60 |  |  |  |  |

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- Definition Tabular disclosure of the number and weighted-average exercise prices (or conversion ratios) for stock options and stock appreciation rights that were outstanding at the beginning and end of the year, exercisable at the end of the year, and the number of stock options and stock appreciation rights that were granted, exercised or converted, forfeited, and expired during the year. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1) -URI http://asc.fasb.org/extlink&oid=120381028&loc=d3e5070-113901 + Details
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- Definition Disclosure of the number and weighted-average grant date fair value for restricted stock and restricted stock units that were outstanding at the beginning and end of the year, and the number of restricted stock and restricted stock units that were granted, vested, or forfeited during the year. + References No definition available. + Details
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