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Stock-Based Compensation - Summarized Activity Related to Director Deferred Compensation Shares (Detail) - Directors [Member] - Deferred Compensation Share Equivalent Units [Member] shares in Thousands | Jan. 31, 2020 $ / shares shares
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Deferred Compensation Arrangement With Individual Share Based Payments [Line Items] |
Number of Shares, Outstanding, Beginning balance | shares | 114
Number of Shares, Outstanding, Ending balance | shares | 114
Weighted-Average Grant Date Fair Value, Beginning balance | $ / shares | $ 55.52
Weighted-Average Grant Date Fair Value, Ending balance | $ / shares | $ 55.77

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- Definition Share based compensation arrangement by share based payment award vested equity instruments other than options weighted average grant date fair value. + References No definition available. + Details
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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
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- Definition Number of equity instruments other than options outstanding, including both vested and non-vested instruments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(ii) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 718 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c)(1)(i) -URI http://asc.fasb.org/extlink&oid=116856206&loc=d3e5070-113901 + Details
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- Details
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- Details
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