Significant Accounting Policies - Additional Information (Detail) - USD ($) |
3 Months Ended | |
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Jul. 31, 2018 |
Oct. 31, 2018 |
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| Significant Accounting Policies [Line Items] | ||
| Performance obligation, contracts expected duration | 12 months | |
| Impairment charges on goodwill | $ 0 | |
| Impairment charges on other long-lived assets | $ 0 | |
| Hardware and Software Maintenance [Member] | ||
| Significant Accounting Policies [Line Items] | ||
| Performance obligation, contracts expected duration | 1 year |
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- Definition Significant Accounting Policies [Line Items] No definition available.
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- Definition Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
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- Definition The charge against earnings resulting from the write down of long lived assets other than goodwill due to the difference between the carrying value and lower fair value. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition Period in which remaining performance obligation is expected to be recognized as revenue, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Details
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