Revenues by Product - Summary of Total Revenues (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Oct. 31, 2019	Oct. 31, 2018	Oct. 31, 2019	Oct. 31, 2018
Disaggregation of Revenue [Line Items]
Total revenues	$ 280,921	$ 224,731	$ 792,573	$ 629,887
Veeva Commercial Cloud
Disaggregation of Revenue [Line Items]
Total revenues	115,201	99,906	333,591	290,944
Veeva Vault
Disaggregation of Revenue [Line Items]
Total revenues	111,559	78,308	308,596	212,865
Total subscription services
Disaggregation of Revenue [Line Items]
Total revenues	226,760	178,214	642,187	503,809
Veeva Commercial Cloud
Disaggregation of Revenue [Line Items]
Total revenues	18,589	16,212	52,381	47,143
Veeva Vault
Disaggregation of Revenue [Line Items]
Total revenues	35,572	30,305	98,005	78,935
Total professional services
Disaggregation of Revenue [Line Items]
Total revenues	$ 54,161	$ 46,517	$ 150,386	$ 126,078