Restricted Stock, Restricted Stock Units, and Stock Options - Additional Information (Detail) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2025 USD ($) shares	Sep. 30, 2024 USD ($)	Sep. 30, 2025 USD ($) Incentive_Plan shares	Sep. 30, 2024 USD ($) shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of equity incentive plans | Incentive_Plan			3
Market value of shares | $			$ 1.6	$ 1.2
Stock options outstanding	0		0
Share-based compensation expense | $	$ 0.8	$ 0.8	$ 2.6	$ 2.2
Performance Awards [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock issued, shares			19,737	12,993
Restricted Stock [Member] | Officers and Employees and Non-employee Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock issued, shares				12,110
Restricted Stock [Member] | Non Employee Directors [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock issued, shares			11,452
Restricted Stock Units (RSUs) [Member] | Officer [Member]
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Common stock issued, shares			4,368	3,270