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Status Summary of Non-Vested Shares (Detail) - Performance Based Restricted Stock - $ / shares	3 Months Ended
	Jun. 30, 2023	Mar. 31, 2023	Jun. 30, 2022	Mar. 31, 2022
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Number of Shares, Beginning balance	318,699	318,699	252,195	379,061
Additional granted (forfeited) based on performance achievement	(58,827)			(41,088)
Number of Shares, Granted	94,028		83,190
Number of Shares, Vested	(86,188)			(78,704)
Number of Shares, Forfeited	(3,316)		(7,829)	(7,074)
Number of Shares, Ending Balance	264,396	318,699	327,556	252,195
Weighted Average Grant-Date Fair Value, Beginning balance	$ 18.05	$ 18.05	$ 16.17	$ 16.43
Weighted Average Grant-Date Fair Value, Additional granted (forfeited) based on performance	14.73			16.56
Weighted Average Grant-Date Fair Value, Vested	13.99			17.18
Weighted Average Grant-Date Fair Value, Granted	21.51		23.63
Weighted Average Grant-Date Fair Value, Forfeited	16.91		17.5	16.77
Weighted Average Grant-Date Fair Value, Ending balance	$ 21.36	$ 18.05	$ 16.58	$ 16.17

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Share based compensation arrangement by share based payment award equity instruments other than options additional grants (forfeited) based on performance.

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The number of equity-based payment instruments, excluding stock (or unit) options, that were forfeited during the reporting period.

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Weighted average fair value as of the grant date of equity-based award plans other than stock (unit) option plans that were not exercised or put into effect as a result of the occurrence of a terminating event.

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The number of grants made during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan).

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The number of non-vested equity-based payment instruments, excluding stock (or unit) options, that validly exist and are outstanding as of the balance sheet date.

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Per share or unit weighted-average fair value of nonvested award under share-based payment arrangement. Excludes share and unit options.

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The weighted average fair value as of grant date pertaining to an equity-based award plan other than a stock (or unit) option plan for which the grantee gained the right during the reporting period, by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash in accordance with the terms of the arrangement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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