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Unamortized Stock-Based Compensation Expenses (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-Based Compensation	$ 1,560	$ 1,711	$ 4,396	$ 5,309
Unamortized Stock-Based Compensation	11,450	12,066	11,450	12,066
Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-Based Compensation	1,184	1,246	3,257	3,469
Unamortized Stock-Based Compensation	8,010	8,277	$ 8,010	$ 8,277
Remaining Weighted Average Period (years)			2 years	2 years
Unrestricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-Based Compensation	130	100	$ 369	$ 317
Unamortized Stock-Based Compensation	347	267	$ 347	$ 267
Remaining Weighted Average Period (years)			8 months 12 days	8 months 12 days
Performance Based Restricted Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-Based Compensation	246	365	$ 770	$ 1,523
Unamortized Stock-Based Compensation	$ 3,093	$ 3,522	$ 3,093	$ 3,522
Remaining Weighted Average Period (years)			1 year 10 months 24 days	2 years

X

- 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

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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

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- Definition

Amount of noncash expense for share-based payment arrangement.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
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