Stock Based Compensation Plan - Additional Information (Detail) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2021	Dec. 31, 2020
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Share-based compensation arrangement, options granted	0	0
2019 Plan [Member]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Share-based compensation arrangement, options granted	0
Restricted Stock [Member]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Stock based compensation expenses	$ 1.9	$ 1.5
Share-based compensation arrangement, other than options, granted	153,636
Share-based compensation arrangement, other than options, forfeited	1,697
Unrecognized compensation cost	$ 2.7
Period over which unrecognized compensation cost expected to be recognized	10 years
Fair value of shares vested	$ 1.5	$ 1.2
Restricted Stock [Member] \| 2019 Plan [Member]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Share-based compensation arrangement, other than options, granted	153,636
Share-based compensation arrangement, other than options, forfeited	1,697
Restricted Stock [Member] \| 2019 Plan [Member] \| Share-based Payment Arrangement Tranche One [Member]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Share-based compensation arrangement, vesting period	3 years
Restricted Stock [Member] \| 2019 Plan [Member] \| Share-based Payment Arrangement Tranche Two [Member]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Share-based compensation arrangement, vesting period	5 years
Restricted Stock [Member] \| 2019 Plan [Member] \| Share-based Payment Arrangement Tranche Three [Member]
Employee Service Share Based Compensation Allocation Of Recognized Period Costs [Line Items]
Share-based compensation arrangement, vesting period	10 years

Amount of expense for award under share-based payment arrangement. Excludes amount capitalized.

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Amount of cost not yet recognized for nonvested award under share-based payment arrangement.

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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.

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Period over which grantee's right to exercise award under share-based payment arrangement is no longer contingent on satisfaction of service or performance condition, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Includes, but is not limited to, combination of market, performance or service condition.

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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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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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Fair value of share-based awards for which the grantee gained the right by satisfying service and performance requirements, to receive or retain shares or units, other instruments, or cash.

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

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