Revenues by Product - Summary of Total Revenues (Detail) - USD ($) $ in Thousands		3 Months Ended			6 Months Ended
		Jul. 31, 2018	Jul. 31, 2017	[1]	Jul. 31, 2018	Jul. 31, 2017	[1]
Disaggregation Of Revenue [Line Items]
Total revenues		$ 209,609	$ 167,795		$ 405,156	$ 327,567
Subscription services, Veeva Commercial Cloud [Member]
Disaggregation Of Revenue [Line Items]
Total revenues		97,927	87,420		191,038	172,378
Subscription services, Veeva Vault [Member]
Disaggregation Of Revenue [Line Items]
Total revenues	[2]	71,665	48,130		134,557	92,303
Subscription services [Member]
Disaggregation Of Revenue [Line Items]
Total revenues		169,592	135,550		325,595	264,681
Professional services, Veeva Commercial Cloud [Member]
Disaggregation Of Revenue [Line Items]
Total revenues		14,770	15,471		30,931	31,439
Professional services, Veeva Vault [Member]
Disaggregation Of Revenue [Line Items]
Total revenues	[2]	25,247	16,774		48,630	31,447
Professional services [Member]
Disaggregation Of Revenue [Line Items]
Total revenues		$ 40,017	$ 32,245		$ 79,561	$ 62,886

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

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