Document and Entity Information	6 Months Ended
	Jul. 31, 2014	Aug. 29, 2014 Class A common stock [Member]	Aug. 29, 2014 Class B common stock [Member]
Document Information [Line Items]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Jul. 31, 2014
Document Fiscal Year Focus	2015
Document Fiscal Period Focus	Q2
Trading Symbol	VEEV
Entity Registrant Name	VEEVA SYSTEMS INC
Entity Central Index Key	0001393052
Current Fiscal Year End Date	--01-31
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding		51,982,632	77,855,117