Summary of Significant Accounting Policies - Additional Information (Detail 1) |
Jan. 31, 2019 |
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| Hardware and Software Maintenance [Member] | Revenue, Remaining Performance Obligation, Expected Timing of Satisfaction, Start Date: 2019-02-01 | |
| 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 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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