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Unamortized Stock-Based Compensation Expenses (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Stock-based compensation | $ 5,684 | $ 6,880 | $ 6,561
Unamortized Stock-Based Compensation | 9,243 | 9,879 | 10,489
Restricted Stock |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Stock-based compensation | 4,407 | 5,682 | 3,166
Unamortized Stock-Based Compensation | $ 6,585 | $ 6,804 | $ 6,954
Remaining Weighted Average Period (years) | 1 year 9 months 18 days | 1 year 9 months 18 days | 1 year 10 months 24 days
Unrestricted Stock |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Stock-based compensation | $ 499 | $ 421 | $ 461
Unamortized Stock-Based Compensation | $ 217 | $ 187 | $ 183
Remaining Weighted Average Period (years) | 4 months 24 days | 4 months 24 days | 4 months 24 days
Performance Based Restricted Stock |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |
Stock-based compensation | $ 778 | $ 777 | $ 2,934
Unamortized Stock-Based Compensation | $ 2,441 | $ 2,888 | $ 3,352
Remaining Weighted Average Period (years) | 1 year 9 months 18 days | 1 year 9 months 18 days | 1 year 10 months 24 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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