Revenues by Product - Summary of Total Revenues (Detail) - USD ($) $ in Thousands		12 Months Ended
		Jan. 31, 2019	Jan. 31, 2018	[1]	Jan. 31, 2017	[1]
Disaggregation Of Revenue [Line Items]
Total revenues		$ 862,210	$ 690,559		$ 550,542
Subscription services, Veeva Commercial Cloud [Member]
Disaggregation Of Revenue [Line Items]
Total revenues		395,039	356,415		307,648
Subscription services, Veeva Vault [Member]
Disaggregation Of Revenue [Line Items]
Total revenues	[2]	299,428	203,019		133,167
Subscription services [Member]
Disaggregation Of Revenue [Line Items]
Total revenues		694,467	559,434		440,815
Professional services, Veeva Commercial Cloud [Member]
Disaggregation Of Revenue [Line Items]
Total revenues		62,557	61,516		62,609
Professional services, Veeva Vault [Member]
Disaggregation Of Revenue [Line Items]
Total revenues	[2]	105,186	69,609		47,118
Professional services [Member]
Disaggregation Of Revenue [Line Items]
Total revenues		$ 167,743	$ 131,125		$ 109,727

[1] See note 1 of the notes to the consolidated financial statements for a summary of adjustments.

[2] Veeva Vault revenues includes revenue from legacy Zinc Ahead products.