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Shared-Based Compensation (Tables) | 6 Months Ended
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Jun. 30, 2022
Share-based Payment Arrangement [Abstract] |
Components of Share-Based Compensation Expense by Type of Award | The following table lists the components of share-based compensation expense by type of award, which is recognized in the “Selling, general, and administrative expense” line in the Condensed Consolidated Statements of Operations and Comprehensive Income (Loss).
| Three Months Ended June 30, |  | Six Months Ended June 30,
| 2022 |  | 2021 |  | 2022 |  | 2021
Stock options | $ | 31 |  |  | $ | 59 |  |  | $ | 87 |  |  | $ | 148 |
Restricted stock | 2,158 |  |  | 591 |  |  | 2,762 |  |  | 1,139 |
Performance share units | 417 |  |  | 450 |  |  | 706 |  |  | 699 |
Change in estimate of share-based award vesting (1) | — |  |  | (337) |  |  | — |  |  | (337) |
Share-based compensation expense | $ | 2,606 |  |  | $ | 763 |  |  | $ | 3,555 |  |  | $ | 1,649 |
_______________________________ (1)Amounts reflect the decrease in share-based compensation expense based on the change in estimate of the probability of vesting of share-based awards. S
Reconciliation of Option Activity | The following table presents stock option activity for the six months ended June 30, 2022.
| Number of Options (in thousands) |  | Weighted- Average Exercise Price (per share) |  | Weighted- Average Remaining Contractual Term |  | Aggregate Intrinsic Value |
Outstanding at January 1, 2022 | 621 |  |  | $ | 12.24 |  |  |  |  |  |
Expired | (79) |  |  | 9.71 |  |  |  |  |  |
Outstanding at June 30, 2022 | 542 |  |  | $ | 12.61 |  |  | 4.1 years |  | $ | — |  | (1)
Exercisable at June 30, 2022 | 515 |  |  | $ | 12.77 |  |  | 3.9 years |  | $ | — |  | (1)
_______________________________ (1)The aggregate intrinsic value is the sum of intrinsic values for each exercisable individual option grant. The intrinsic value is the amount by which the closing market price of our stock at June 30, 2022, was greater than the exercise price of any individual option grant.
Reconciliation of Restricted Stock Option Activity | The following table presents the status of unvested restricted stock awards as of June 30, 2022 and changes during the six months then ended.
| Nonvested Restricted Shares (in thousands) |  | Weighted Average Grant-Date Fair Value (per share)
Unvested at January 1, 2022 | 469 |  |  | $ | 7.28 |
Granted | 897 |  |  | 3.31 |
Vested | (291) |  |  | 7.05 |
Forfeited | (9) |  |  | 4.73 |
Unvested at June 30, 2022 | 1,066 |  |  | $ | 4.02 |
Schedule of Performance Based Awards Goals with Respect to TSR and ROIC | The following table presents the goals with respect to PSUs granted in 2022.
|  | Threshold Performance (25% of Shares) |  | Target Performance (100% of Shares) |  | Maximum Performance (150% of Shares)
TSR Awards |  | 25th Percentile |  | 55th Percentile |  | 75th Percentile
|  | Threshold Performance (50% of Shares) |  | Target Performance (100% of Shares) |  | Maximum Performance (150% of Shares)
ROIC Awards |  | 6.4% |  | 8.6% |  | 10.0%
Summary of Status of Unvested PSU Awards | The following table presents the status of unvested PSUs as of June 30, 2022 and changes during the six months then ended.
| Nonvested TSR Awards |  | Nonvested ROIC Awards
| Shares (in thousands) |  | Weighted Average Grant-Date Fair Value (per share) |  | Shares (in thousands) |  | Weighted Average Grant-Date Fair Value (per share)
Nonvested at January 1, 2022 | 194 |  |  | $ | 9.59 |  |  | 228 |  |  | $ | 8.14 |
Granted | 382 |  |  | 2.53 |  |  | 408 |  |  | 2.62 |
Nonvested at June 30, 2022 | 576 |  |  | $ | 4.90 |  |  | 636 |  |  | $ | 4.60 |

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