Deferred Revenue and Performance Obligations - Additional Information (Detail) - Subscription services - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jul. 31, 2019	Jul. 31, 2018	Jul. 31, 2019	Jul. 31, 2018
Revenue From Contracts With Customers [Line Items]
Recognition of deferred revenue	$ 165.1	$ 135.2	$ 239.1	$ 187.9
Revenue expected to be recognized from remaining performance obligations	659.0		659.0
Revenue expected to recognize from remaining performance obligations over the next 12 months	$ 495.4		$ 495.4

Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 8
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130549-203045

+ Details

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- Definition

Amount of transaction price allocated to performance obligation that has not been recognized as revenue.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 13
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=109196051&loc=SL49130556-203045

+ Details

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Revenue from contracts with customers.

+ References

No definition available.

+ Details

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Namespace Prefix:	veev_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Revenue remaining performance obligation expected to recognize over the next twelve months.

+ References

No definition available.

+ Details

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Namespace Prefix:	veev_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
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- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: