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Summary of Significant Accounting Policies - Useful Lives of Major Classes of Assets (Detail) | 3 Months Ended
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Apr. 30, 2022
Buildings |
Property, Plant and Equipment, Estimated Useful Lives, Lease Terms [Line Items] |
Useful lives in asset class | 25 years
Leasehold Improvements |
Property, Plant and Equipment, Estimated Useful Lives, Lease Terms [Line Items] |
Useful lives in asset class | Lesser of 10 years or the term of the lease
Leasehold Improvements | Maximum |
Property, Plant and Equipment, Estimated Useful Lives, Lease Terms [Line Items] |
Useful lives in asset class | 10 years
Fixtures and Equipment |
Property, Plant and Equipment, Estimated Useful Lives, Lease Terms [Line Items] |
Useful lives in asset class | 5 years
Information Technology | Minimum |
Property, Plant and Equipment, Estimated Useful Lives, Lease Terms [Line Items] |
Useful lives in asset class | 3 years
Information Technology | Maximum |
Property, Plant and Equipment, Estimated Useful Lives, Lease Terms [Line Items] |
Useful lives in asset class | 5 years

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- Definition Describes the periods of time over which an entity anticipates to receive utility from its property, plant and equipment (that is, the periods of time over which an entity allocates the initial cost of its property, plant and equipment). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 360 -SubTopic 10 -Section 35 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=123364984&loc=d3e1205-110223 + 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 Useful life of long lived, physical assets used in the normal conduct of business and not intended for resale, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days. Examples include, but not limited to, land, buildings, machinery and equipment, office equipment, furniture and fixtures, and computer equipment. + References No definition available. + Details
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