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Share-Based Compensation - Summary of Grant Date Fair Value of Awards (Details) - USD ($) $ in Thousands | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2021 | Sep. 30, 2020 | Sep. 30, 2021 | Sep. 30, 2020
Grant date fair value of awards during the period: |  |  |  |
Options | $ 152 | $ 258 | $ 6,870 | $ 12,332
Performance Awards | 32 | 0 | 1,622 | 0
Restricted stock | 80 | 0 | 2,253 | 3,316
Total | 264 | 258 | 10,745 | 15,648
Share-based compensation expense: |  |  |  |
Options | 2,167 | 2,208 | 6,594 | 6,136
Performance awards | 166 | 0 | 355 | 0
Restricted stock | 658 | 644 | 1,835 | 2,410
Total | 2,991 | 2,852 | 8,784 | 8,546
Income tax benefit/(deficiency) related to share-based compensation: |  |  |  |
Options | 440 | 579 | 3,010 | 1,990
Restricted stock | 1 | 9 | 820 | 503
Total | $ 441 | $ 588 | $ 3,830 | $ 2,493

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