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Capital Structure - Additional Information (Detail) - shares | 12 Months Ended |
--- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020
Class of Stock [Line Items] |  |
Preferred stock, shares authorized | 2,000,000 | 2,000,000
Class B Common Stock [Member] |  |
Class of Stock [Line Items] |  |
Common stock, rights to vote | 84 |
Class A Common Stock [Member] |  |
Class of Stock [Line Items] |  |
Common stock, rights to vote | one |

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