Revenues by Product - Summary of Total Revenues (Detail) - USD ($) $ in Thousands	3 Months Ended
	Apr. 30, 2020	Apr. 30, 2019
Disaggregation of Revenue [Line Items]
Total revenues	$ 337,106	$ 244,752
Veeva Commercial Cloud
Disaggregation of Revenue [Line Items]
Total revenues	142,577	105,796
Veeva Vault
Disaggregation of Revenue [Line Items]
Total revenues	127,658	92,319
Total subscription services
Disaggregation of Revenue [Line Items]
Total revenues	270,235	198,115
Veeva Commercial Cloud
Disaggregation of Revenue [Line Items]
Total revenues	27,376	17,221
Veeva Vault
Disaggregation of Revenue [Line Items]
Total revenues	39,495	29,416
Total professional services
Disaggregation of Revenue [Line Items]
Total revenues	$ 66,871	$ 46,637