<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.20.1</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>302</ContextCount>
  <ElementCount>520</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>true</FootnotesReported>
  <SegmentCount>83</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>12</UnitCount>
  <MyReports>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>0002000 - Document - Cover Page</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/CoverPage</Role>
      <ShortName>Cover Page</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>1001000 - Statement - Consolidated Balance Sheets</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/ConsolidatedBalanceSheets</Role>
      <ShortName>Consolidated Balance Sheets</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>1001501 - Statement - Consolidated Balance Sheets (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/ConsolidatedBalanceSheetsParenthetical</Role>
      <ShortName>Consolidated Balance Sheets (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>1002000 - Statement - Consolidated Statements of Comprehensive Income</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/ConsolidatedStatementsOfComprehensiveIncome</Role>
      <ShortName>Consolidated Statements of Comprehensive Income</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>1002501 - Statement - Consolidated Statements of Comprehensive Income (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/ConsolidatedStatementsOfComprehensiveIncomeParenthetical</Role>
      <ShortName>Consolidated Statements of Comprehensive Income (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>1003000 - Statement - Consolidated Statements Stockholders' Equity</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/ConsolidatedStatementsStockholdersEquity</Role>
      <ShortName>Consolidated Statements Stockholders' Equity</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>1004000 - Statement - Consolidated Statements of Cash Flows</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/ConsolidatedStatementsOfCashFlows</Role>
      <ShortName>Consolidated Statements of Cash Flows</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>2101100 - Disclosure - Summary of Business and Significant Accounting Policies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/SummaryOfBusinessAndSignificantAccountingPolicies</Role>
      <ShortName>Summary of Business and Significant Accounting Policies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>2102100 - Disclosure - Acquisitions</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/Acquisitions</Role>
      <ShortName>Acquisitions</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>2103100 - Disclosure - Short-Term Investments</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/ShortTermInvestments</Role>
      <ShortName>Short-Term Investments</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>2104100 - Disclosure - Deferred Costs</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/DeferredCosts</Role>
      <ShortName>Deferred Costs</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>2105100 - Disclosure - Property and Equipment, Net</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/PropertyAndEquipmentNet</Role>
      <ShortName>Property and Equipment, Net</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>2106100 - Disclosure - Intangible Assets and Goodwill</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/IntangibleAssetsAndGoodwill</Role>
      <ShortName>Intangible Assets and Goodwill</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>2107100 - Disclosure - Accrued Expenses</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/AccruedExpenses</Role>
      <ShortName>Accrued Expenses</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>2108100 - Disclosure - Fair Value Measurements</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/FairValueMeasurements</Role>
      <ShortName>Fair Value Measurements</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>2109100 - Disclosure - Other Income, Net</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/OtherIncomeNet</Role>
      <ShortName>Other Income, Net</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>2110100 - Disclosure - Income Taxes</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/IncomeTaxes</Role>
      <ShortName>Income Taxes</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>2111100 - Disclosure - Deferred Revenue and Performance Obligations</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/DeferredRevenueAndPerformanceObligations</Role>
      <ShortName>Deferred Revenue and Performance Obligations</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>2112100 - Disclosure - Leases</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/Leases</Role>
      <ShortName>Leases</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>2113100 - Disclosure - Stockholders' Equity</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/StockholdersEquity</Role>
      <ShortName>Stockholders' Equity</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>20</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>2114100 - Disclosure - Net Income per Share</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/NetIncomePerShare</Role>
      <ShortName>Net Income per Share</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>21</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>2115100 - Disclosure - Commitments and Contingencies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/CommitmentsAndContingencies</Role>
      <ShortName>Commitments and Contingencies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>22</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>2116100 - Disclosure - Related-Party Transactions</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/RelatedPartyTransactions</Role>
      <ShortName>Related-Party Transactions</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>23</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>2117100 - Disclosure - Revenues by Product</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/RevenuesByProduct</Role>
      <ShortName>Revenues by Product</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>24</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>2118100 - Disclosure - Information about Geographic Areas</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/InformationAboutGeographicAreas</Role>
      <ShortName>Information about Geographic Areas</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>25</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>2119100 - Disclosure - 401(k) Plan</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/A401KPlan</Role>
      <ShortName>401(k) Plan</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>26</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>2120100 - Disclosure - Selected Quarterly Financial Data (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/SelectedQuarterlyFinancialDataUnaudited</Role>
      <ShortName>Selected Quarterly Financial Data (Unaudited)</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>27</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>2201201 - Disclosure - Summary of Business and Significant Accounting Policies (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/SummaryOfBusinessAndSignificantAccountingPoliciesPolicies</Role>
      <ShortName>Summary of Business and Significant Accounting Policies (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <ParentRole>http://veeva.com/role/SummaryOfBusinessAndSignificantAccountingPolicies</ParentRole>
      <Position>28</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>2301302 - Disclosure - Summary of Business and Significant Accounting Policies (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/SummaryOfBusinessAndSignificantAccountingPoliciesTables</Role>
      <ShortName>Summary of Business and Significant Accounting Policies (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://veeva.com/role/SummaryOfBusinessAndSignificantAccountingPolicies</ParentRole>
      <Position>29</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>2302301 - Disclosure - Acquisitions (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/AcquisitionsTables</Role>
      <ShortName>Acquisitions (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://veeva.com/role/Acquisitions</ParentRole>
      <Position>30</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>2303301 - Disclosure - Short-Term Investments (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/ShortTermInvestmentsTables</Role>
      <ShortName>Short-Term Investments (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://veeva.com/role/ShortTermInvestments</ParentRole>
      <Position>31</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>2305301 - Disclosure - Property and Equipment, Net (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/PropertyAndEquipmentNetTables</Role>
      <ShortName>Property and Equipment, Net (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://veeva.com/role/PropertyAndEquipmentNet</ParentRole>
      <Position>32</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>2306301 - Disclosure - Intangible Assets and Goodwill (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/IntangibleAssetsAndGoodwillTables</Role>
      <ShortName>Intangible Assets and Goodwill (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://veeva.com/role/IntangibleAssetsAndGoodwill</ParentRole>
      <Position>33</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>2307301 - Disclosure - Accrued Expenses (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/AccruedExpensesTables</Role>
      <ShortName>Accrued Expenses (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://veeva.com/role/AccruedExpenses</ParentRole>
      <Position>34</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>2308301 - Disclosure - Fair Value Measurements (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/FairValueMeasurementsTables</Role>
      <ShortName>Fair Value Measurements (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://veeva.com/role/FairValueMeasurements</ParentRole>
      <Position>35</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>2309301 - Disclosure - Other Income, Net (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/OtherIncomeNetTables</Role>
      <ShortName>Other Income, Net (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://veeva.com/role/OtherIncomeNet</ParentRole>
      <Position>36</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>2310301 - Disclosure - Income Taxes (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/IncomeTaxesTables</Role>
      <ShortName>Income Taxes (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://veeva.com/role/IncomeTaxes</ParentRole>
      <Position>37</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>2312301 - Disclosure - Leases (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/LeasesTables</Role>
      <ShortName>Leases (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://veeva.com/role/Leases</ParentRole>
      <Position>38</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>2313301 - Disclosure - Stockholders' Equity (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/StockholdersEquityTables</Role>
      <ShortName>Stockholders' Equity (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://veeva.com/role/StockholdersEquity</ParentRole>
      <Position>39</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>2314301 - Disclosure - Net Income per Share (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/NetIncomePerShareTables</Role>
      <ShortName>Net Income per Share (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://veeva.com/role/NetIncomePerShare</ParentRole>
      <Position>40</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>2317301 - Disclosure - Revenues by Product (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/RevenuesByProductTables</Role>
      <ShortName>Revenues by Product (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://veeva.com/role/RevenuesByProduct</ParentRole>
      <Position>41</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>2318301 - Disclosure - Information about Geographic Areas (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/InformationAboutGeographicAreasTables</Role>
      <ShortName>Information about Geographic Areas (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://veeva.com/role/InformationAboutGeographicAreas</ParentRole>
      <Position>42</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>2320301 - Disclosure - Selected Quarterly Financial Data (Unaudited) (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/SelectedQuarterlyFinancialDataUnauditedTables</Role>
      <ShortName>Selected Quarterly Financial Data (Unaudited) (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://veeva.com/role/SelectedQuarterlyFinancialDataUnaudited</ParentRole>
      <Position>43</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>2401403 - Disclosure - Summary of Business and Significant Accounting Policies - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/SummaryOfBusinessAndSignificantAccountingPoliciesAdditionalInformationDetail</Role>
      <ShortName>Summary of Business and Significant Accounting Policies - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>44</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>2401404 - Disclosure - Summary of Business and Significant Accounting Policies - Schedule of Certain Risks and Concentrations of Credit Risk (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/SummaryOfBusinessAndSignificantAccountingPoliciesScheduleOfCertainRisksAndConcentrationsOfCreditRiskDetail</Role>
      <ShortName>Summary of Business and Significant Accounting Policies - Schedule of Certain Risks and Concentrations of Credit Risk (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>45</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>2401405 - Disclosure - Summary of Business and Significant Accounting Policies - Schedule of Estimated Useful Lives by Asset Classification (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/SummaryOfBusinessAndSignificantAccountingPoliciesScheduleOfEstimatedUsefulLivesByAssetClassificationDetail</Role>
      <ShortName>Summary of Business and Significant Accounting Policies - Schedule of Estimated Useful Lives by Asset Classification (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>46</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>2402402 - Disclosure - Acquisitions (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/AcquisitionsDetails</Role>
      <ShortName>Acquisitions (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://veeva.com/role/AcquisitionsTables</ParentRole>
      <Position>47</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>2402403 - Disclosure - Acquisitions - Schedule of Assets and Liabilities Assumed (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/AcquisitionsScheduleOfAssetsAndLiabilitiesAssumedDetails</Role>
      <ShortName>Acquisitions - Schedule of Assets and Liabilities Assumed (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>48</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>2402404 - Disclosure - Acquisitions - Schedule of Pro Forma Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/AcquisitionsScheduleOfProFormaInformationDetails</Role>
      <ShortName>Acquisitions - Schedule of Pro Forma Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>49</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R50.htm</HtmlFileName>
      <LongName>2403402 - Disclosure - Short-Term Investments - Schedule of Short-Term Investments (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/ShortTermInvestmentsScheduleOfShortTermInvestmentsDetail</Role>
      <ShortName>Short-Term Investments - Schedule of Short-Term Investments (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>50</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R51.htm</HtmlFileName>
      <LongName>2403403 - Disclosure - Short-Term Investments - Summary of Estimated Fair Value of Short-Term Investments, Designated as Available-for-Sale and Classified by Contractual Maturity (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/ShortTermInvestmentsSummaryOfEstimatedFairValueOfShortTermInvestmentsDesignatedAsAvailableForSaleAndClassifiedByContractualMaturityDetail</Role>
      <ShortName>Short-Term Investments - Summary of Estimated Fair Value of Short-Term Investments, Designated as Available-for-Sale and Classified by Contractual Maturity (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>51</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R52.htm</HtmlFileName>
      <LongName>2403404 - Disclosure - Short-Term Investments - Schedule of Fair Values and Gross Unrealized Loss Position of Available-for-Sale Securities Aggregated by Investment Category (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/ShortTermInvestmentsScheduleOfFairValuesAndGrossUnrealizedLossPositionOfAvailableForSaleSecuritiesAggregatedByInvestmentCategoryDetail</Role>
      <ShortName>Short-Term Investments - Schedule of Fair Values and Gross Unrealized Loss Position of Available-for-Sale Securities Aggregated by Investment Category (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>52</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R53.htm</HtmlFileName>
      <LongName>2403405 - Disclosure - Short-Term Investments - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/ShortTermInvestmentsAdditionalInformationDetail</Role>
      <ShortName>Short-Term Investments - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>53</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R54.htm</HtmlFileName>
      <LongName>2404401 - Disclosure - Deferred Costs - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/DeferredCostsAdditionalInformationDetail</Role>
      <ShortName>Deferred Costs - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>54</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R55.htm</HtmlFileName>
      <LongName>2405402 - Disclosure - Property and Equipment, Net - Components of Property and Equipment, Net (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/PropertyAndEquipmentNetComponentsOfPropertyAndEquipmentNetDetail</Role>
      <ShortName>Property and Equipment, Net - Components of Property and Equipment, Net (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>55</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R56.htm</HtmlFileName>
      <LongName>2405403 - Disclosure - Property and Equipment, Net - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/PropertyAndEquipmentNetAdditionalInformationDetail</Role>
      <ShortName>Property and Equipment, Net - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>56</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R57.htm</HtmlFileName>
      <LongName>2406402 - Disclosure - Intangible Assets and Goodwill - Details of Intangible Assets (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/IntangibleAssetsAndGoodwillDetailsOfIntangibleAssetsDetail</Role>
      <ShortName>Intangible Assets and Goodwill - Details of Intangible Assets (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>57</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R58.htm</HtmlFileName>
      <LongName>2406403 - Disclosure - Intangible Assets and Goodwill - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/IntangibleAssetsAndGoodwillAdditionalInformationDetail</Role>
      <ShortName>Intangible Assets and Goodwill - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>58</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R59.htm</HtmlFileName>
      <LongName>2406404 - Disclosure - Intangible Assets and Goodwill - Estimated Amortization Expense (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/IntangibleAssetsAndGoodwillEstimatedAmortizationExpenseDetail</Role>
      <ShortName>Intangible Assets and Goodwill - Estimated Amortization Expense (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>59</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R60.htm</HtmlFileName>
      <LongName>2406405 - Disclosure - Intangible Assets and Goodwill Intangible Assets and Goodwill - Schedule of Goodwill (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/IntangibleAssetsAndGoodwillIntangibleAssetsAndGoodwillScheduleOfGoodwillDetails</Role>
      <ShortName>Intangible Assets and Goodwill Intangible Assets and Goodwill - Schedule of Goodwill (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>60</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R61.htm</HtmlFileName>
      <LongName>2407402 - Disclosure - Accrued Expenses - Schedule of Accrued Expenses (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/AccruedExpensesScheduleOfAccruedExpensesDetail</Role>
      <ShortName>Accrued Expenses - Schedule of Accrued Expenses (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>61</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R62.htm</HtmlFileName>
      <LongName>2408402 - Disclosure - Fair Value Measurements - Fair Value Hierarchy for Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/FairValueMeasurementsFairValueHierarchyForFinancialAssetsAndLiabilitiesMeasuredAtFairValueOnRecurringBasisDetail</Role>
      <ShortName>Fair Value Measurements - Fair Value Hierarchy for Financial Assets and Liabilities Measured at Fair Value on Recurring Basis (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>62</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R63.htm</HtmlFileName>
      <LongName>2408403 - Disclosure - Fair Value Measurements - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/FairValueMeasurementsAdditionalInformationDetail</Role>
      <ShortName>Fair Value Measurements - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>63</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R64.htm</HtmlFileName>
      <LongName>2408404 - Disclosure - Fair Value Measurements - Summary Fair Value of Outstanding Derivative Instruments (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/FairValueMeasurementsSummaryFairValueOfOutstandingDerivativeInstrumentsDetail</Role>
      <ShortName>Fair Value Measurements - Summary Fair Value of Outstanding Derivative Instruments (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>64</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R65.htm</HtmlFileName>
      <LongName>2408405 - Disclosure - Fair Value Measurements - Summary of Outstanding Balance Sheet Hedges (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/FairValueMeasurementsSummaryOfOutstandingBalanceSheetHedgesDetail</Role>
      <ShortName>Fair Value Measurements - Summary of Outstanding Balance Sheet Hedges (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>65</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R66.htm</HtmlFileName>
      <LongName>2409402 - Disclosure - Other Income, Net - Other Income, Net (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/OtherIncomeNetOtherIncomeNetDetail</Role>
      <ShortName>Other Income, Net - Other Income, Net (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>66</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R67.htm</HtmlFileName>
      <LongName>2410402 - Disclosure - Income Taxes - Components of Income before Income Taxes (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/IncomeTaxesComponentsOfIncomeBeforeIncomeTaxesDetail</Role>
      <ShortName>Income Taxes - Components of Income before Income Taxes (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>67</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R68.htm</HtmlFileName>
      <LongName>2410403 - Disclosure - Income Taxes - Components of Provision for Income Taxes (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/IncomeTaxesComponentsOfProvisionForIncomeTaxesDetail</Role>
      <ShortName>Income Taxes - Components of Provision for Income Taxes (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>68</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R69.htm</HtmlFileName>
      <LongName>2410404 - Disclosure - Income Taxes - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/IncomeTaxesAdditionalInformationDetail</Role>
      <ShortName>Income Taxes - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>69</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R70.htm</HtmlFileName>
      <LongName>2410405 - Disclosure - Income Taxes - Reconciliation of Statutory Federal Income Tax to Effective Tax (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/IncomeTaxesReconciliationOfStatutoryFederalIncomeTaxToEffectiveTaxDetail</Role>
      <ShortName>Income Taxes - Reconciliation of Statutory Federal Income Tax to Effective Tax (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>70</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R71.htm</HtmlFileName>
      <LongName>2410406 - Disclosure - Income Taxes - Components of Deferred Tax Assets and Liabilities (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/IncomeTaxesComponentsOfDeferredTaxAssetsAndLiabilitiesDetail</Role>
      <ShortName>Income Taxes - Components of Deferred Tax Assets and Liabilities (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>71</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R72.htm</HtmlFileName>
      <LongName>2410407 - Disclosure - Income Taxes - Summary of Changes in Total Gross Amount of Unrecognized Tax Benefits (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/IncomeTaxesSummaryOfChangesInTotalGrossAmountOfUnrecognizedTaxBenefitsDetail</Role>
      <ShortName>Income Taxes - Summary of Changes in Total Gross Amount of Unrecognized Tax Benefits (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>72</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R73.htm</HtmlFileName>
      <LongName>2411401 - Disclosure - Deferred Revenue and Performance Obligations - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/DeferredRevenueAndPerformanceObligationsAdditionalInformationDetail</Role>
      <ShortName>Deferred Revenue and Performance Obligations - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>73</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R74.htm</HtmlFileName>
      <LongName>2411402 - Disclosure - Deferred Revenue and Performance Obligations - Additional Information (Detail1)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/DeferredRevenueAndPerformanceObligationsAdditionalInformationDetail1</Role>
      <ShortName>Deferred Revenue and Performance Obligations - Additional Information (Detail1)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>74</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R75.htm</HtmlFileName>
      <LongName>2412402 - Disclosure - Leases (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/LeasesDetails</Role>
      <ShortName>Leases (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://veeva.com/role/LeasesTables</ParentRole>
      <Position>75</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R76.htm</HtmlFileName>
      <LongName>2412403 - Disclosure - Leases - Schedule of Supplemental Cash Flow Information Related to Leases (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/LeasesScheduleOfSupplementalCashFlowInformationRelatedToLeasesDetails</Role>
      <ShortName>Leases - Schedule of Supplemental Cash Flow Information Related to Leases (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>76</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R77.htm</HtmlFileName>
      <LongName>2412404 - Disclosure - Leases - Schedule of Supplemental Balance Sheet Information Related to Leases (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/LeasesScheduleOfSupplementalBalanceSheetInformationRelatedToLeasesDetails</Role>
      <ShortName>Leases - Schedule of Supplemental Balance Sheet Information Related to Leases (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>77</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R78.htm</HtmlFileName>
      <LongName>2412405 - Disclosure - Leases - Schedule of Lease Maturities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/LeasesScheduleOfLeaseMaturitiesDetails</Role>
      <ShortName>Leases - Schedule of Lease Maturities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>78</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R79.htm</HtmlFileName>
      <LongName>2412406 - Disclosure - Leases - Future Minimum Lease Payments Under Non-cancelable Operating Leases Under ASU 840 (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/LeasesFutureMinimumLeasePaymentsUnderNonCancelableOperatingLeasesUnderAsu840Details</Role>
      <ShortName>Leases - Future Minimum Lease Payments Under Non-cancelable Operating Leases Under ASU 840 (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>79</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R80.htm</HtmlFileName>
      <LongName>2413402 - Disclosure - Stockholders' Equity - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/StockholdersEquityAdditionalInformationDetail</Role>
      <ShortName>Stockholders' Equity - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>80</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R81.htm</HtmlFileName>
      <LongName>2413403 - Disclosure - Stockholders' Equity - Summary of Stock Option Activity (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/StockholdersEquitySummaryOfStockOptionActivityDetail</Role>
      <ShortName>Stockholders' Equity - Summary of Stock Option Activity (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>81</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R82.htm</HtmlFileName>
      <LongName>2413404 - Disclosure - Stockholders' Equity - Summary of RSU Activity (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/StockholdersEquitySummaryOfRsuActivityDetail</Role>
      <ShortName>Stockholders' Equity - Summary of RSU Activity (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>82</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R83.htm</HtmlFileName>
      <LongName>2413405 - Disclosure - Stockholders' Equity - Schedule of Weighted-Average Assumptions Used to Estimate Grant Date Fair Value of Options Granted (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/StockholdersEquityScheduleOfWeightedAverageAssumptionsUsedToEstimateGrantDateFairValueOfOptionsGrantedDetail</Role>
      <ShortName>Stockholders' Equity - Schedule of Weighted-Average Assumptions Used to Estimate Grant Date Fair Value of Options Granted (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>83</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R84.htm</HtmlFileName>
      <LongName>2413406 - Disclosure - Stockholders' Equity - Schedule of Weighted-Average Assumptions Used In For Each Tranche Granted (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/StockholdersEquityScheduleOfWeightedAverageAssumptionsUsedInForEachTrancheGrantedDetail</Role>
      <ShortName>Stockholders' Equity - Schedule of Weighted-Average Assumptions Used In For Each Tranche Granted (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>84</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R85.htm</HtmlFileName>
      <LongName>2414402 - Disclosure - Net Income per Share - Numerators and Denominators of the Basic and Diluted EPS Computations for Common Stock (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/NetIncomePerShareNumeratorsAndDenominatorsOfBasicAndDilutedEpsComputationsForCommonStockDetail</Role>
      <ShortName>Net Income per Share - Numerators and Denominators of the Basic and Diluted EPS Computations for Common Stock (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>85</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R86.htm</HtmlFileName>
      <LongName>2414403 - Disclosure - Net Income per Share - Potential Common Share Equivalents Excluded where the Inclusion would be Anti-dilutive (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/NetIncomePerSharePotentialCommonShareEquivalentsExcludedWhereInclusionWouldBeAntiDilutiveDetail</Role>
      <ShortName>Net Income per Share - Potential Common Share Equivalents Excluded where the Inclusion would be Anti-dilutive (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>86</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R87.htm</HtmlFileName>
      <LongName>2415401 - Disclosure - Commitments and Contingencies - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/CommitmentsAndContingenciesAdditionalInformationDetail</Role>
      <ShortName>Commitments and Contingencies - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>87</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R88.htm</HtmlFileName>
      <LongName>2416401 - Disclosure - Related-Party Transactions - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/RelatedPartyTransactionsAdditionalInformationDetail</Role>
      <ShortName>Related-Party Transactions - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>88</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R89.htm</HtmlFileName>
      <LongName>2417402 - Disclosure - Revenues by Product - Summary of Total Revenues (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/RevenuesByProductSummaryOfTotalRevenuesDetail</Role>
      <ShortName>Revenues by Product - Summary of Total Revenues (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>89</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R90.htm</HtmlFileName>
      <LongName>2418402 - Disclosure - Information about Geographic Areas - Revenues by Geographic Area (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/InformationAboutGeographicAreasRevenuesByGeographicAreaDetail</Role>
      <ShortName>Information about Geographic Areas - Revenues by Geographic Area (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>90</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R91.htm</HtmlFileName>
      <LongName>2418403 - Disclosure - Information about Geographic Areas - Long-Lived Assets by Geographic Area (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/InformationAboutGeographicAreasLongLivedAssetsByGeographicAreaDetail</Role>
      <ShortName>Information about Geographic Areas - Long-Lived Assets by Geographic Area (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>91</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R92.htm</HtmlFileName>
      <LongName>2419401 - Disclosure - 401(k) Plan - Additional Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/A401KPlanAdditionalInformationDetail</Role>
      <ShortName>401(k) Plan - Additional Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>92</Position>
    </Report>
    <Report instance="veev-20200131x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R93.htm</HtmlFileName>
      <LongName>2420402 - Disclosure - Selected Quarterly Financial Data (Unaudited) - Summary of Quarterly Financial Information (Detail)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://veeva.com/role/SelectedQuarterlyFinancialDataUnauditedSummaryOfQuarterlyFinancialInformationDetail</Role>
      <ShortName>Selected Quarterly Financial Data (Unaudited) - Summary of Quarterly Financial Information (Detail)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://veeva.com/role/SelectedQuarterlyFinancialDataUnauditedTables</ParentRole>
      <Position>93</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <InputFiles>
    <File doctype="10-K" original="veev-20200131x10k.htm">veev-20200131x10k.htm</File>
    <File>veev-20200131.xsd</File>
    <File>veev-20200131_cal.xml</File>
    <File>veev-20200131_def.xml</File>
    <File>veev-20200131_lab.xml</File>
    <File>veev-20200131_pre.xml</File>
    <File>veev-20200131xex231.htm</File>
    <File>veev-20200131xexx211.htm</File>
    <File>veev-20200131xexx311.htm</File>
    <File>veev-20200131xexx312.htm</File>
    <File>veev-20200131xexx321.htm</File>
    <File>veev-20200131xexx322.htm</File>
    <File>veev-20200131xexx42.htm</File>
  </InputFiles>
  <SupplementalFiles>
    <File>chart-eb8f163309115f87a35.jpg</File>
  </SupplementalFiles>
  <BaseTaxonomies>
    <BaseTaxonomy>http://xbrl.sec.gov/dei/2019-01-31</BaseTaxonomy>
    <BaseTaxonomy>http://fasb.org/srt/2018-01-31</BaseTaxonomy>
    <BaseTaxonomy>http://xbrl.sec.gov/country/2017-01-31</BaseTaxonomy>
    <BaseTaxonomy>http://fasb.org/us-gaap/2018-01-31</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
