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Unamortized Stock-Based Compensation Expenses (Detail) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2022 | Jun. 30, 2021 | Jun. 30, 2022 | Jun. 30, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Stock-Based Compensation | $ 1,273 | $ 1,806 | $ 2,836 | $ 3,598
Unamortized Stock-Based Compensation | 13,534 | 14,287 | 13,534 | 14,287
Restricted Stock |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Stock-Based Compensation | 1,079 | 1,167 | 2,072 | 2,223
Unamortized Stock-Based Compensation | 9,277 | 9,734 | $ 9,277 | $ 9,734
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 | 122 | 107 | $ 239 | $ 217
Unamortized Stock-Based Compensation | 476 | 367 | $ 476 | $ 367
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 | 72 | 532 | $ 525 | $ 1,158
Unamortized Stock-Based Compensation | $ 3,781 | $ 4,186 | $ 3,781 | $ 4,186
Remaining Weighted Average Period (years) |  |  | 2 years 1 month 6 days | 2 years 1 month 6 days

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- Definition Amount of cost not yet recognized for nonvested award under share-based payment arrangement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Weighted-average period over which cost not yet recognized is expected to be recognized for award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (i) -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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- Definition Amount of noncash expense for share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI https://asc.fasb.org/extlink&oid=126954810&loc=d3e3602-108585 + Details
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