Stockholders' Equity (Detail) $ in Millions	3 Months Ended	9 Months Ended
Jun. 30, 2022 USD ($) item Transaction shares	Sep. 30, 2023 shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Treasury stock purchases		0
Shares available for purchase		523,647
Shares Repurchased in Market Transaction
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Purchase of common shares	70,000
Shares Repurchased from Affiliates
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Purchase of common shares	8,900
Number of affiliates \| item	2
Number of private transactions \| Transaction	2
Class A Common Stock
Share-based Compensation Arrangement by Share-based Payment Award [Line Items]
Purchase of common shares	78,900
Purchase of common shares value \| $	$ 1.7

The number of private transactions in which the shares are repurchased.

No definition available.

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- Definition

The number of affiliates, the shares are repurchased.

+ References

No definition available.

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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.

+ References

No definition available.

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- Definition

The remaining number of shares authorized to be repurchased by an entity's Board of Directors under a stock repurchase plan.

+ References

No definition available.

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Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

+ References

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- Definition

Equity impact of the value of stock that has been repurchased during the period and has not been retired and is not held in treasury. Some state laws may mandate the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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Number of shares that have been repurchased during the period and are being held in treasury.

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