Revenues by Product - Summary of Total Revenues (Detail) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2020 USD ($) industry	Oct. 31, 2019 USD ($)	Oct. 31, 2020 USD ($) industry	Oct. 31, 2019 USD ($)
Disaggregation of Revenue [Line Items]
Number of product areas | industry	2		2
Total revenues	$ 377,519	$ 280,921	$ 1,068,308	$ 792,573
Veeva Commercial Cloud
Disaggregation of Revenue [Line Items]
Total revenues	152,466	115,201	439,858	333,591
Veeva Vault
Disaggregation of Revenue [Line Items]
Total revenues	150,472	111,559	416,817	308,596
Total subscription services
Disaggregation of Revenue [Line Items]
Total revenues	302,938	226,760	856,675	642,187
Veeva Commercial Cloud
Disaggregation of Revenue [Line Items]
Total revenues	29,115	18,589	83,109	52,381
Veeva Vault
Disaggregation of Revenue [Line Items]
Total revenues	45,466	35,572	128,524	98,005
Total professional services
Disaggregation of Revenue [Line Items]
Total revenues	$ 74,581	$ 54,161	$ 211,633	$ 150,386