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Share Repurchase Program (Detail) - USD ($) | 3 Months Ended | 6 Months Ended |
--- | --- | --- | ---
Jun. 30, 2023 | Jun. 30, 2024 | Jun. 30, 2023 | May 18, 2023
Equity, Class of Treasury Stock [Line Items] |  |  |  |
Common stock repurchase program, authorized remaining amount |  | $ 165,020,476 |  |
Common stock repurchase program, number of shares repurchased (in shares) | 720,175 | 187,357 | 1,633,620 |
Repurchase program, approximate dollar value of shares purchased | $ 99,980,000 | $ 35,000,000 | $ 217,108,000 |
Repurchase program, average price paid per share (in usd per share) | $ 138.83 | $ 186.81 | $ 132.90 |
May 18 2023 Stock Repurchase Program |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |
Common stock repurchase program, authorized amount |  |  |  | $ 300,000,000
September 19, 2022 Stock Repurchase Program |  |  |  |
Equity, Class of Treasury Stock [Line Items] |  |  |  |
Common stock repurchase program, authorized remaining amount |  |  |  | $ 100,000,000

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- Definition Number of shares that have been repurchased and retired during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -SubTopic 10 -Topic 505 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481112/505-10-50-2 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480566/210-10-S99-1 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480008/505-10-S99-1 + Details
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