Stock-based Compensation - Stock Option Activities (Detail) $ / shares in Units, $ in Thousands |
6 Months Ended |
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Jul. 31, 2026
USD ($)
$ / shares
shares
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| Share-Based Payment Arrangement [Abstract] | |
| Shares, Outstanding | shares | 159,912 |
| Shares, Exercised | shares | (59,509) |
| Shares, Outstanding | shares | 100,403 |
| Shares, Exercisable | shares | 100,403 |
| Weighted-Average Exercise Price, Outstanding | $ / shares | $ 52.48 |
| Weighted-Average Exercise Price, Exercised | $ / shares | 42.79 |
| Weighted-Average Exercise Price, Outstanding | $ / shares | 58.23 |
| Weighted-Average Exercise Price, Exercisable | $ / shares | $ 58.23 |
| Total Intrinsic Value Of Options Exercised | $ | $ 1,317 |
| Weighted-Average Remaining Contractual Term, Outstanding | 2 years 4 months 2 days |
| Weighted-Average Remaining Contractual Term, Exercisable | 2 years 4 months 2 days |
| Aggregate Intrinsic Value, Outstanding | $ | $ 3,015 |
| Aggregate Intrinsic Value, Exercisable | $ | $ 3,015 |
| X | ||||||||||
- 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 weighted-average price as of the balance sheet date at which grantees can acquire the shares reserved for issuance on vested portions of options outstanding and currently exercisable under the stock option plan. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount of accumulated difference between fair value of underlying shares on dates of exercise and exercise price on options exercised (or share units converted) into shares. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition Amount by which the current fair value of the underlying stock exceeds the exercise price of options outstanding. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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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 Amount of difference between fair value of the underlying shares reserved for issuance and exercise price of vested portions of options outstanding and currently exercisable. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Weighted-average contractual term remaining for vested portion of option outstanding and currently exercisable or convertible, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Weighted-average contractual term remaining for option award outstanding, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition Number of share options (or share units) exercised during the current period. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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