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Stock Based Compensation - Additional Information (Details) $ / shares in Units, $ in Thousands | 12 Months Ended
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Dec. 31, 2021 USD ($) item $ / shares shares | Dec. 31, 2020 USD ($) $ / shares shares | Dec. 31, 2019 USD ($) $ / shares shares | Dec. 31, 2018 USD ($)
Additional Employee Stock Plans Information |  |  |  |
Income tax expense (benefit) | $ 3,897 | $ (12,276) | $ 13,451 |
Performance Share Unit Awards |  |  |  |
Additional Employee Stock Plans Information |  |  |  |
Compensation expenses recognized | 2,502 | $ 567 | $ 1,420 |
Unrecognized compensation expense, net of expected forfeitures, calculated under the fair value method for shares expected to vest | $ 1,236 |  |  |
Performance Share Unit Awards | 2010 Plan |  |  |  |
Additional Employee Stock Plans Information |  |  |  |
Performance period | 3 years |  |  |
Number of performance shares company expects participants to earn | shares | 71,697 | 15,632 | 29,829 |
Number of performance shares units that will be converted into RSUs | shares | 54,391 |  |  |
Restricted Stock Unit Awards |  |  |  |
Additional Employee Stock Plans Information |  |  |  |
fair value per share of the awards | $ / shares | $ 44.48 | $ 49.90 | $ 36.48 |
Accelerated stock based compensation expense | $ 2,988 | $ 1,191 | $ 1,374 |
Restricted Stock Unit Awards | 2010 Plan |  |  |  |
Additional Employee Stock Plans Information |  |  |  |
Compensation expenses recognized | 3,292 | $ 2,263 | $ 1,819 |
Unrecognized compensation expense, net of expected forfeitures, calculated under the fair value method for shares expected to vest | $ 1,289 |  |  |
Minimum age of employee, attaining which awards are continued to be vested upon retirement | item | 65 |  |  |
Minimum service period, upon serving which awards are continued to be vested upon retirement | 10 years |  |  |
Minimum age of employee along with service period condition, attaining which awards are continued to be vested upon retirement | item | 55 |  |  |
Maximum period following a termination of service in which the share-based award will be settled | 2 months 15 days |  |  |
Restricted Stock Unit Awards | 2010 Plan | Management |  |  |  |
Additional Employee Stock Plans Information |  |  |  |
Accelerated stock based compensation expense |  |  |  | $ 2,988
Restricted Stock Unit Awards | 2010 Plan | Common Stock |  |  |  |
Additional Employee Stock Plans Information |  |  |  |
Number of shares issued upon exercise of units other than options | shares | 1 |  |  |

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