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Share-Based Compensation (Tables) | 3 Months Ended
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Mar. 31, 2023
Disclosure Of Compensation Related Costs Sharebased Payments [Abstract] |
Summary of Company's Stock Option Plan Activity | The following table summarizes the stock option activity for the three months ended March 31, 2023:
Dollars and shares in thousands, except per share amounts |  | Number of Shares |  |  | Weighted-Average Exercise Price Per Share |  |  | Weighted-Average Remaining Contractual Life (Years) |  |  | Aggregate Intrinsic Value |
Options outstanding at January 1, 2023 |  |  | 527 |  |  | $ | 23.07 |  |  |  |  |  |  |
Granted |  |  | — |  |  |  | — |  |  |  |  |  |  |
Exercised |  |  | — |  |  |  | — |  |  |  |  |  |  |
Forfeited |  |  | — |  |  |  | — |  |  |  |  |  |  |
Expired |  |  | — |  |  |  | — |  |  |  |  |  |  |
Options outstanding at March 31, 2023 |  |  | 527 |  |  | $ | 23.07 |  |  |  | 5.6 |  |  | $ | 2,403 |
Options exercisable at March 31, 2023 |  |  | 475 |  |  | $ | 22.32 |  |  |  | 5.4 |  |  | $ | 2,389 |
Summary of Additional Stock Option Information | The following table provides additional stock option information for the periods indicated:
|  | Three Months Ended March 31, |
Dollars in thousands, except per share amounts |  | 2023 |  |  | 2022 |
Weighted-average grant date fair value per share |  | $ | — |  |  | $ | — |
Intrinsic value of options exercised |  | $ | — |  |  | $ | 2,142 |
Fair value of stock options that vested |  | $ | — |  |  | $ | — |
Award Grant Fair Value Assumptions | The following are the weighted-average assumptions for the PRSU grants during the periods indicated below:
|  | Three Months Ended March 31, |
|  | 2023 |  |  | 2022 |
Expected volatility |  |  | — |  |  |  | 39.24 | %
Expected dividends |  |  | — |  |  |  | — |
Risk-free rate |  |  | — |  |  |  | 1.05 | %
Discount for post-vesting restrictions |  |  | — |  |  |  | 11.93 | %
Summary of PRSU Activity | The following table summarizes PRSU activity during the three months ended March 31, 2023:
Dollars and units in thousands, except per unit amounts |  | Units |  |  | Weighted-Average Grant Date Fair Value Per Unit |
Non-vested units at January 1, 2023 |  |  | 70 |  |  | $ | 52.07 |
Granted |  |  | — |  |  |  | — |
Achieved performance adjustment |  |  | — |  |  |  | — |
Vested |  |  | — |  |  |  | — |
Forfeited |  |  | — |  |  |  | — |
Non-vested units at March 31, 2023 |  |  | 70 |  |  | $ | 52.07 |
Summary of Additional PRSU Information | The following table provides additional PRSU information for the periods indicated:
|  | Three Months Ended March 31, |
Dollars in thousands, except per unit amounts |  | 2023 |  |  | 2022 |
Weighted-average grant date fair value per unit |  | $ | — |  |  | $ | 52.07 |
Fair value of PRSUs that vested |  | $ | — |  |  | $ | — |
Summary of RSU Activity | The following table summarizes RSU activity during the three months ended March 31, 2023:
Dollars and units in thousands, except per unit amounts |  | Units |  |  | Weighted-Average Grant Date Fair Value Per Unit |
Non-vested units at January 1, 2023 |  |  | 108 |  |  | $ | 21.87 |
Granted (target) |  |  | — |  |  |  | — |
Achieved performance adjustment |  |  | — |  |  |  | — |
Vested |  |  | — |  |  |  | — |
Forfeited |  |  | — |  |  |  | — |
Non-vested units at March 31, 2023 |  |  | 108 |  |  | $ | 21.87 |
Summary of Additional RSU Information | The following table provides additional RSU information for the periods indicated:
|  | Three Months Ended March 31, |
Dollars in thousands, except per unit amounts |  | 2023 |  |  | 2022 |
Weighted-average grant date fair value per unit |  | $ | — |  |  | $ | — |
Fair value of RSUs that vested |  | $ | — |  |  | $ | — |
Summary of RSA Activity | The following table summarizes RSA activity during the three months ended March 31, 2023:
Dollars and shares in thousands, except per share amounts |  | Shares |  |  | Weighted-Average Grant Date Fair Value Per Share |
Non-vested shares at January 1, 2023 |  |  | 198 |  |  | $ | 38.99 |
Granted |  |  | 56 |  |  |  | 51.87 |
Vested |  |  | (3 | ) |  |  | 54.30 |
Forfeited |  |  | — |  |  |  | — |
Non-vested shares at March 31, 2023 |  |  | 251 |  |  | $ | 41.68 |
Summary of Additional RSA Information | The following table provides additional RSA information for the periods indicated:
|  | Three Months Ended March 31, |
Dollars in thousands, except per share amounts |  | 2023 |  |  | 2022 |
Weighted-average grant date fair value per share |  | $ | 51.87 |  |  | $ | 40.13 |
Fair value of RSAs that vested |  | $ | 154 |  |  | $ | 215 |

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