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Share Repurchase Program - Additional Information (Detail) - USD ($) | 6 Months Ended |  |  |
--- | --- | --- | --- | ---
Jun. 30, 2021 | Jun. 30, 2022 | May 06, 2021 | Feb. 26, 2020
Schedule Of Share Repurchase Programs [Line Items] |  |  |  |
Common stock repurchase program, authorized amount |  |  | $ 125,000,000 | $ 50,000,000
Common stock repurchase program, authorized remaining amount |  | $ 75,000,000 |  |
Common stock repurchase program, number of shares repurchased (in shares) | 497,243 |  |  |
Repurchase program, approximate dollar value of shares purchased | $ 49,999,979 |  |  |
Repurchase program, average price paid per share (in usd per share) | $ 100.55 |  |  |
February 2020 Share Repurchase Plan |  |  |  |
Schedule Of Share Repurchase Programs [Line Items] |  |  |  |
Common stock repurchase program, authorized remaining amount |  |  | $ 25,000,000 |

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