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v3.24.0.1

Stockholders' Equity (Detail) $ / shares in Units, $ in Millions | 3 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2022 USD ($) item shares | Dec. 31, 2021 shares | Mar. 31, 2021 shares | Dec. 31, 2023 shares | Dec. 31, 2022 $ / shares shares | Dec. 31, 2021 USD ($) $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Purchase of common shares |  |  |  |  | 78,900 | 75,000
Shares available for purchase |  |  |  | 523,647 |  |
Common Stock Dividend declared by directors | $ / shares |  |  |  |  | $ 0.25 | $ 0.20
Special cash dividends per share | $ / shares |  |  |  |  | $ 1.75 |
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 | item | 2 |  |  |  |  |
Class A Common Stock |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Purchase of common shares | 78,900 | 25,000 | 50,000 |  |  | 75,000
Purchase of common shares value | $ | $ 1.7 |  |  |  |  | $ 1.3
Class A Common Stock | Non-Employee | 2013 Director Stock Plan |  |  |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |  |  |
Common stock shares authorized to be issued under the plan |  |  |  | 200,000 |  |
Shares available for award |  |  |  | 124,450 |  |

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