Equity Awards - Stock Option Activity (Detail) - $ / shares |
12 Months Ended | ||
|---|---|---|---|
Mar. 31, 2026 |
Mar. 31, 2025 |
Mar. 31, 2024 |
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| Share-Based Payment Arrangement [Abstract] | |||
| Number of Shares, Outstanding Options at Beginning of Year | 184,233 | 252,364 | 436,949 |
| Number of Shares, Granted | 29,424 | 5,476 | 5,558 |
| Number of Shares, Exercised | (6,936) | (72,553) | (189,143) |
| Number of Shares, Cancelled | 0 | (1,054) | (1,000) |
| Number of Shares, Outstanding Options at End of Year | 206,721 | 184,233 | 252,364 |
| Number of Shares, Options Exercisable at End of Year | 172,332 | 162,740 | 215,913 |
| Weighted-Average Exercise Price, Outstanding Options at Beginning of Year | $ 95.75 | $ 91.28 | $ 89.69 |
| Weighted-Average Exercise Price, Granted | 213.66 | 244.92 | 172.62 |
| Weighted-Average Exercise Price, Exercised | 77.1 | 90.2 | 90.4 |
| Weighted-Average Exercise Price, Cancelled | 0 | 125.97 | 73.37 |
| Weighted-Average Exercise Price, Outstanding Options at End of Year | 113.16 | 95.75 | 91.28 |
| Weighted-Average Fair Value of Options Granted During the Year | $ 93.69 | $ 104.45 | $ 69.84 |
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- References No definition available.
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- Definition The number of shares into which fully or partially vested stock options outstanding as of the balance sheet date can be currently converted under the option plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The number of shares under options that were cancelled during the reporting period as a result of occurrence of a terminating event specified in contractual agreements pertaining to the stock option plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Gross number of share options (or share units) granted during the period. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The weighted average grant-date fair value of options granted during the reporting period as calculated by applying the disclosed option pricing methodology. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Number of options outstanding, including both vested and non-vested options. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Weighted average price at which grantees can acquire the shares reserved for issuance under the stock option plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Weighted average price at which option holders acquired shares when converting their stock options into shares. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Weighted average price at which grantees could have acquired the underlying shares with respect to stock options that were terminated. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Weighted average per share amount at which grantees can acquire shares of common stock by exercise of options. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Number of share options (or share units) exercised during the current period. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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