Revenues by Product - Summary of Total Revenues (Detail) - USD ($) $ in Thousands	12 Months Ended
	Jan. 31, 2020	Jan. 31, 2019	Jan. 31, 2018
Disaggregation of Revenue [Line Items]
Total revenues	$ 1,104,081	$ 862,210	$ 690,559
Veeva Commercial Cloud
Disaggregation of Revenue [Line Items]
Total revenues	468,615	395,039	356,415
Veeva Vault
Disaggregation of Revenue [Line Items]
Total revenues	427,679	299,428	203,019
Total subscription services
Disaggregation of Revenue [Line Items]
Total revenues	896,294	694,467	559,434
Veeva Commercial Cloud
Disaggregation of Revenue [Line Items]
Total revenues	76,347	62,557	61,516
Veeva Vault
Disaggregation of Revenue [Line Items]
Total revenues	131,440	105,186	69,609
Total professional services
Disaggregation of Revenue [Line Items]
Total revenues	$ 207,787	$ 167,743	$ 131,125