Document and Entity Information (USD $) In Billions, except Share data, unless otherwise specified	12 Months Ended
	Jan. 31, 2014	Oct. 16, 2013	Mar. 12, 2014 Class A common stock [Member]	Mar. 12, 2014 Class B common stock [Member]
Document Information [Line Items]
Document Type	10-K
Amendment Flag	false
Document Period End Date	Jan. 31, 2014
Document Fiscal Year Focus	2014
Document Fiscal Period Focus	FY
Trading Symbol	VEEV
Entity Registrant Name	VEEVA SYSTEMS INC
Entity Central Index Key	0001393052
Current Fiscal Year End Date	--01-31
Entity Well-known Seasoned Issuer	No
Entity Current Reporting Status	Yes
Entity Voluntary Filers	No
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding			15,125,708	109,702,612
Entity Public Float		$ 0.6