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Schedule of Share Based Awards Issued and Weighted Average Fair Value (Detail) | 9 Months Ended
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Oct. 31, 2018 $ / shares shares
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Awards Granted | 795,000
Stock Options |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Awards Granted | 140,000
Weighted Average Fair Value | $ / shares | $ 17.12
Performance Stock Units (PSUs) |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Awards Granted | 100,000
Weighted Average Fair Value | $ / shares | $ 34.76
Restricted Stock Units (RSUs) |
Share-based Compensation Arrangement by Share-based Payment Award [Line Items] |
Awards Granted | 555,000
Weighted Average Fair Value | $ / shares | $ 36.52

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- Definition The weighted average fair value at grant date for nonvested equity-based awards issued during the period on other than stock (or unit) option plans (for example, phantom stock or unit plan, stock or unit appreciation rights plan, performance target plan). + 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)(2)(iii)(1) -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + 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 share instruments newly issued under a share-based compensation plan. + 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 -URI http://asc.fasb.org/extlink&oid=109197908&loc=d3e5070-113901 + Details
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