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Compensation Related Costs, Share Based Payments (Tables) | 6 Months Ended
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Jun. 30, 2021
Share-based Payment Arrangement [Abstract] |
Share-based Payment Arrangement, Expensed and Capitalized, Amount | Expense recognized for equity-classified stock compensation by plan was as follows:
(in thousands) |  | Three Months Ended June 30, |  | Six Months Ended June 30,
|  | 2021 |  | 2020 |  | 2021 |  | 2020
2018 Equity Incentive Plan |  | $ | 821 |  |  | $ | 580 |  |  | $ | 1,379 |  |  | $ | 918 |

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