Share-Based Compensation - Additional Information (Detail) - USD ($)	12 Months Ended
Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	$ 0	$ 0	$ 0
Stock-based compensation tax benefit recognized	$ 273,000	$ 292,000
Share-based compensation, number of options exercised	0	0	0
Options granted to employees on grant date	0	0	0
Unrecognized compensation cost related to nonvested options	$ 0
2004 Plan \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation, number of shares reserved for issuance	1,400,000
Share-based compensation, number of shares reserved for issuance, contractual terms	10 years
2006 Plan \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation, number of shares reserved for issuance	200,000
Share-based compensation, number of shares reserved for issuance, contractual terms	10 years
2007 Plan \| Maximum
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Share-based compensation, number of shares reserved for issuance	400,000
Share-based compensation, number of shares reserved for issuance, contractual terms	10 years
Capitalized stock-based compensation
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Stock-based compensation	$ 0	$ 0
Stock-based compensation tax benefit recognized	$ 0	$ 0	$ 0

Amount before allocation of valuation allowances of deferred tax asset attributable to deductible temporary differences from share-based compensation.

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Amount of cost to be recognized for option under share-based payment arrangement.

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Amount of noncash expense for share-based payment arrangement.

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Number of shares authorized for issuance under share-based payment arrangement.

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Gross number of share options (or share units) granted during the period.

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Expected term of award under share-based payment arrangement, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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