Revenues by Product - Summary of Total Revenues (Detail) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jul. 31, 2019	Jul. 31, 2018	Jul. 31, 2019	Jul. 31, 2018
Disaggregation of Revenue [Line Items]
Total revenues	$ 266,900	$ 209,609	$ 511,652	$ 405,156
Veeva Commercial Cloud
Disaggregation of Revenue [Line Items]
Total revenues	112,593	97,927	218,390	191,038
Veeva Vault
Disaggregation of Revenue [Line Items]
Total revenues	104,719	71,665	197,037	134,557
Total subscription services
Disaggregation of Revenue [Line Items]
Total revenues	217,312	169,592	415,427	325,595
Veeva Commercial Cloud
Disaggregation of Revenue [Line Items]
Total revenues	16,571	14,770	33,792	30,931
Veeva Vault
Disaggregation of Revenue [Line Items]
Total revenues	33,017	25,247	62,433	48,630
Total professional services
Disaggregation of Revenue [Line Items]
Total revenues	$ 49,588	$ 40,017	$ 96,225	$ 79,561