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Stock Based Compensation - Additional Information (Detail) - USD ($) $ / shares in Units, $ in Millions |  |  | 3 Months Ended | 9 Months Ended
--- | --- | --- | --- | ---
Sep. 20, 2022 | Jun. 09, 2021 | Sep. 30, 2022 | Sep. 30, 2022
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |
Number of common stock available for future grant |  |  | 12,763,009 | 12,763,009
Aggregate amount of special dividend payment | $ 45.0 |  |  |
Cash dividends paid per common share | $ 1.43 |  | $ 1.43 | $ 1.43
2018 Omnibus Incentive Plan |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |
Increase in number of shares of common stock reserved for issuance |  | 2,500,000 |  | 14,860,784
Common Stock, Capital Shares Reserved for Future Issuance |  | 5,300,000 | 20,160,784 | 20,160,784
2018 Omnibus Incentive Plan | Performance-Based Stock Option Grants |  |  |  |
Share Based Compensation Arrangement By Share Based Payment Award [Line Items] |  |  |  |
Issuance of option grants to purchase common stock shares |  |  | 400,000 | 400,000

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- Definition The difference between the maximum number of shares (or other type of equity) authorized for issuance under the plan (including the effects of amendments and adjustments), and the sum of: 1) the number of shares (or other type of equity) already issued upon exercise of options or other equity-based awards under the plan; and 2) shares (or other type of equity) reserved for issuance on granting of outstanding awards, net of cancellations and forfeitures, if applicable. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -URI https://asc.fasb.org/extlink&oid=128089324&loc=d3e5070-113901 + Details
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