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Unamortized Stock-Based Compensation Expenses (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2023 | Jun. 30, 2022 | Jun. 30, 2023 | Jun. 30, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Stock-Based Compensation | $ 1,067 | $ 1,273 | $ 2,541 | $ 2,836
Unamortized Stock-Based Compensation | 12,862 | 13,534 | 12,862 | 13,534
Restricted Stock |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Stock-Based Compensation | 1,211 | 1,079 | 2,410 | 2,072
Unamortized Stock-Based Compensation | 9,147 | 9,277 | $ 9,147 | $ 9,277
Remaining Weighted Average Period (years) |  |  | 2 years 2 months 12 days | 2 years 2 months 12 days
Unrestricted Stock |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Stock-Based Compensation | 130 | 122 | $ 260 | $ 239
Unamortized Stock-Based Compensation | 477 | 476 | $ 477 | $ 476
Remaining Weighted Average Period (years) |  |  | 10 months 24 days | 10 months 24 days
Performance Based Restricted Stock |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Stock-Based Compensation | (274) | 72 | $ (129) | $ 525
Unamortized Stock-Based Compensation | $ 3,238 | $ 3,781 | $ 3,238 | $ 3,781
Remaining Weighted Average Period (years) |  |  | 2 years 2 months 12 days | 2 years 1 month 6 days

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