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Share Repurchase Program - Additional Information (Detail) - USD ($) | 9 Months Ended |  |
--- | --- | --- | ---
Sep. 30, 2022 | Sep. 30, 2021 | Sep. 19, 2022 | May 06, 2021
Equity, Class of Treasury Stock [Line Items] |  |  |  |
Common stock repurchase program, number of shares repurchased (in shares) | 270,080 | 497,243 |  |
Repurchase program, approximate dollar value of shares purchased | $ 25,008,025 | $ 49,999,979 |  |
Repurchase program, average price paid per share (in usd per share) | $ 92.59 | $ 100.55 |  |
May 6, 2021 Stock Repurchase Program |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |
Common stock repurchase program, authorized amount |  |  |  | $ 125,000,000
Common stock repurchase program, authorized remaining amount |  |  | $ 50,000,000 |
September 14, 2022 Stock Repurchase Program |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |
Common stock repurchase program, authorized amount |  |  | $ 300,000,000 |
Common stock repurchase program, authorized remaining amount | $ 300,000,000 |  |  |

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