Revenues by Product - Summary of Total Revenues (Detail) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2020 USD ($) u_veevProductArea	Jul. 31, 2019 USD ($)	Jul. 31, 2020 USD ($) u_veevProductArea	Jul. 31, 2019 USD ($)
Disaggregation of Revenue [Line Items]
Number of product areas | u_veevProductArea	2		2
Total revenues	$ 353,683	$ 266,900	$ 690,789	$ 511,652
Veeva Commercial Cloud
Disaggregation of Revenue [Line Items]
Total revenues	144,815	112,593	287,392	218,390
Veeva Vault
Disaggregation of Revenue [Line Items]
Total revenues	138,687	104,719	266,345	197,037
Total subscription services
Disaggregation of Revenue [Line Items]
Total revenues	283,502	217,312	553,737	415,427
Veeva Commercial Cloud
Disaggregation of Revenue [Line Items]
Total revenues	26,618	16,571	53,994	33,792
Veeva Vault
Disaggregation of Revenue [Line Items]
Total revenues	43,563	33,017	83,058	62,433
Total professional services
Disaggregation of Revenue [Line Items]
Total revenues	$ 70,181	$ 49,588	$ 137,052	$ 96,225