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Share-Based Compensation Expense Included in Selling, General and Administrative Expenses in Consolidated Statements of Income (Detail) - USD ($) $ in Thousands | 12 Months Ended
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Jan. 31, 2022 | Jan. 31, 2021 | Jan. 31, 2020
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Share-based compensation expense |  | $ 25,741 | $ 20,300 | $ 21,109
Stock Options |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Share-based compensation expense |  |  | 471 | 1,737
Performance Stock Units (PSUs) |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Share-based compensation expense | [1] | 4,067 | 181 | 3,483
Restricted Stock Units (RSUs) |  |  |  |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |  |  |  |
Share-based compensation expense |  | $ 21,674 | $ 19,648 | $ 15,889
[1] | Includes: (i) the reversal of $1,017 of previously recognized compensation expense in fiscal 2021, related to 87,997 PSU’s that were not projected to vest as the achievement of the related performance target was deemed not probable, of which $364 related to 41,332 PSU’s was subsequently recognized in fiscal 2022 due to the Company’s better than projected performance that resulted in the performance target being achieved; and (ii) the reversal of $803 of previously recognized compensation expense in fiscal 2020, related to 54,356 PSU’s that will not vest as the achievement of the related performance target is not probable.

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- Definition Amount of noncash expense for share-based payment arrangement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 230 -SubTopic 10 -Section 45 -Paragraph 28 -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3602-108585 + Details
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