Segment Information, Significant Customers and Geographic Information - Additional Information (Detail)
|9 Months Ended|
Oct. 31, 2015
|Segment Reporting [Abstract]|
|Number of reportable segment||1|
Number of segments reported by the entity. A reportable segment is a component of an entity for which there is an accounting requirement to report separate financial information on that component in the entity's financial statements.
No definition available.