<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.20.2</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>239</ContextCount>
  <ElementCount>343</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>true</FootnotesReported>
  <SegmentCount>52</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>9</UnitCount>
  <MyReports>
    <Report instance="cvet-20200630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>0001001 - Document - Cover</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.covetrus.com/role/Cover</Role>
      <ShortName>Cover</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="cvet-20200630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>1001002 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.covetrus.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETS</Role>
      <ShortName>CONDENSED CONSOLIDATED BALANCE SHEETS</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="cvet-20200630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>1002003 - Statement - CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) - Parenthetical</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.covetrus.com/role/CONDENSEDCONSOLIDATEDBALANCESHEETSUNAUDITEDParenthetical</Role>
      <ShortName>CONDENSED CONSOLIDATED BALANCE SHEETS (UNAUDITED) - Parenthetical</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="cvet-20200630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>1003004 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.covetrus.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFOPERATIONSUNAUDITED</Role>
      <ShortName>CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS (UNAUDITED)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="cvet-20200630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>1004005 - Statement - CONDENSED CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (UNAUDITED)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.covetrus.com/role/CONDENSEDCONSOLIDATEDSTATEMENTOFCOMPREHENSIVEINCOMEUNAUDITED</Role>
      <ShortName>CONDENSED CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME (UNAUDITED)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="cvet-20200630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>1005006 - Statement - CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (UNAUDITED)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.covetrus.com/role/CONDENSEDCONSOLIDATEDSTATEMENTSOFSHAREHOLDERSEQUITYUNAUDITED</Role>
      <ShortName>CONDENSED CONSOLIDATED STATEMENTS OF SHAREHOLDERS' EQUITY (UNAUDITED)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="cvet-20200630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>1006007 - Statement - CONDENSED CONSOLIDATED STATEMENT OF CASH FLOWS (UNAUDITED)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.covetrus.com/role/CONDENSEDCONSOLIDATEDSTATEMENTOFCASHFLOWSUNAUDITED</Role>
      <ShortName>CONDENSED CONSOLIDATED STATEMENT OF CASH FLOWS (UNAUDITED)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="cvet-20200630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>2101101 - Disclosure - Business Overview and Significant Accounting Policies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.covetrus.com/role/BusinessOverviewandSignificantAccountingPolicies</Role>
      <ShortName>Business Overview and Significant Accounting Policies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="cvet-20200630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>2103102 - Disclosure - Novel Coronavirus Disease 2019 ("COVID-19")</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.covetrus.com/role/NovelCoronavirusDisease2019COVID19</Role>
      <ShortName>Novel Coronavirus Disease 2019 ("COVID-19")</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="cvet-20200630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>2104103 - Disclosure - Divestiture and Equity Method Investment</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.covetrus.com/role/DivestitureandEquityMethodInvestment</Role>
      <ShortName>Divestiture and Equity Method Investment</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="cvet-20200630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>2106104 - Disclosure - Revenue from Contracts with Customers</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.covetrus.com/role/RevenuefromContractswithCustomers</Role>
      <ShortName>Revenue from Contracts with Customers</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="cvet-20200630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>2110105 - Disclosure - Leases</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.covetrus.com/role/Leases</Role>
      <ShortName>Leases</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="cvet-20200630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>2112106 - Disclosure - Other Intangibles, Net</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.covetrus.com/role/OtherIntangiblesNet</Role>
      <ShortName>Other Intangibles, Net</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="cvet-20200630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>2116107 - Disclosure - Long-term Debt and Other Borrowings, Net</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.covetrus.com/role/LongtermDebtandOtherBorrowingsNet</Role>
      <ShortName>Long-term Debt and Other Borrowings, Net</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="cvet-20200630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>2120108 - Disclosure - Derivatives and Financial Instruments</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.covetrus.com/role/DerivativesandFinancialInstruments</Role>
      <ShortName>Derivatives and Financial Instruments</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="cvet-20200630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>2125109 - Disclosure - Fair Value</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.covetrus.com/role/FairValue</Role>
      <ShortName>Fair Value</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="cvet-20200630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>2128110 - Disclosure - Commitments and Contingencies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.covetrus.com/role/CommitmentsandContingencies</Role>
      <ShortName>Commitments and Contingencies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="cvet-20200630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>2130111 - Disclosure - Redeemable Non-controlling Interests</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.covetrus.com/role/RedeemableNoncontrollingInterests</Role>
      <ShortName>Redeemable Non-controlling Interests</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="cvet-20200630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>2133112 - Disclosure - Redeemable, Convertible Series A Preferred Stock</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.covetrus.com/role/RedeemableConvertibleSeriesAPreferredStock</Role>
      <ShortName>Redeemable, Convertible Series A Preferred Stock</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="cvet-20200630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>2135113 - Disclosure - Accumulated Other Comprehensive Income (Loss)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.covetrus.com/role/AccumulatedOtherComprehensiveIncomeLoss</Role>
      <ShortName>Accumulated Other Comprehensive Income (Loss)</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>20</Position>
    </Report>
    <Report instance="cvet-20200630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>2138114 - Disclosure - Income Taxes</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.covetrus.com/role/IncomeTaxes</Role>
      <ShortName>Income Taxes</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>21</Position>
    </Report>
    <Report instance="cvet-20200630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>2140115 - Disclosure - Earnings (Loss) Per Share</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.covetrus.com/role/EarningsLossPerShare</Role>
      <ShortName>Earnings (Loss) Per Share</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>22</Position>
    </Report>
    <Report instance="cvet-20200630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>2143116 - Disclosure - Share-Based Compensation</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.covetrus.com/role/ShareBasedCompensation</Role>
      <ShortName>Share-Based Compensation</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>23</Position>
    </Report>
    <Report instance="cvet-20200630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>2145117 - Disclosure - Related Party Disclosures</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.covetrus.com/role/RelatedPartyDisclosures</Role>
      <ShortName>Related Party Disclosures</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>24</Position>
    </Report>
    <Report instance="cvet-20200630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>2146118 - Disclosure - Segment Data</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.covetrus.com/role/SegmentData</Role>
      <ShortName>Segment Data</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>25</Position>
    </Report>
    <Report instance="cvet-20200630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>2202201 - Disclosure - Business Overview and Significant Accounting Policies (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.covetrus.com/role/BusinessOverviewandSignificantAccountingPoliciesPolicies</Role>
      <ShortName>Business Overview and Significant Accounting Policies (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <ParentRole>http://www.covetrus.com/role/BusinessOverviewandSignificantAccountingPolicies</ParentRole>
      <Position>26</Position>
    </Report>
    <Report instance="cvet-20200630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>2307301 - Disclosure - Revenue from Contracts with Customers (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.covetrus.com/role/RevenuefromContractswithCustomersTables</Role>
      <ShortName>Revenue from Contracts with Customers (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.covetrus.com/role/RevenuefromContractswithCustomers</ParentRole>
      <Position>27</Position>
    </Report>
    <Report instance="cvet-20200630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>2313302 - Disclosure - Other Intangibles, Net (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.covetrus.com/role/OtherIntangiblesNetTables</Role>
      <ShortName>Other Intangibles, Net (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.covetrus.com/role/OtherIntangiblesNet</ParentRole>
      <Position>28</Position>
    </Report>
    <Report instance="cvet-20200630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>2317303 - Disclosure - Long-term Debt and Other Borrowings, Net (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.covetrus.com/role/LongtermDebtandOtherBorrowingsNetTables</Role>
      <ShortName>Long-term Debt and Other Borrowings, Net (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.covetrus.com/role/LongtermDebtandOtherBorrowingsNet</ParentRole>
      <Position>29</Position>
    </Report>
    <Report instance="cvet-20200630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>2321304 - Disclosure - Derivatives and Financial Instruments (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.covetrus.com/role/DerivativesandFinancialInstrumentsTables</Role>
      <ShortName>Derivatives and Financial Instruments (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.covetrus.com/role/DerivativesandFinancialInstruments</ParentRole>
      <Position>30</Position>
    </Report>
    <Report instance="cvet-20200630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>2326305 - Disclosure - Fair Value Fair Value (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.covetrus.com/role/FairValueFairValueTables</Role>
      <ShortName>Fair Value Fair Value (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <Position>31</Position>
    </Report>
    <Report instance="cvet-20200630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>2331306 - Disclosure - Redeemable Non-controlling Interests (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.covetrus.com/role/RedeemableNoncontrollingInterestsTables</Role>
      <ShortName>Redeemable Non-controlling Interests (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.covetrus.com/role/RedeemableNoncontrollingInterests</ParentRole>
      <Position>32</Position>
    </Report>
    <Report instance="cvet-20200630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>2336307 - Disclosure - Accumulated Other Comprehensive Income (Loss) (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.covetrus.com/role/AccumulatedOtherComprehensiveIncomeLossTables</Role>
      <ShortName>Accumulated Other Comprehensive Income (Loss) (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.covetrus.com/role/AccumulatedOtherComprehensiveIncomeLoss</ParentRole>
      <Position>33</Position>
    </Report>
    <Report instance="cvet-20200630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>2341308 - Disclosure - Earnings (Loss) Per Share (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.covetrus.com/role/EarningsLossPerShareTables</Role>
      <ShortName>Earnings (Loss) Per Share (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.covetrus.com/role/EarningsLossPerShare</ParentRole>
      <Position>34</Position>
    </Report>
    <Report instance="cvet-20200630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>2347309 - Disclosure - Segment Data (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.covetrus.com/role/SegmentDataTables</Role>
      <ShortName>Segment Data (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.covetrus.com/role/SegmentData</ParentRole>
      <Position>35</Position>
    </Report>
    <Report instance="cvet-20200630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>2405401 - Disclosure - Divestiture and Equity Method Investment (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.covetrus.com/role/DivestitureandEquityMethodInvestmentDetails</Role>
      <ShortName>Divestiture and Equity Method Investment (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.covetrus.com/role/DivestitureandEquityMethodInvestment</ParentRole>
      <Position>36</Position>
    </Report>
    <Report instance="cvet-20200630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>2408402 - Disclosure - Revenue from Contracts with Customers - Disaggregation of Revenue (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.covetrus.com/role/RevenuefromContractswithCustomersDisaggregationofRevenueDetails</Role>
      <ShortName>Revenue from Contracts with Customers - Disaggregation of Revenue (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>37</Position>
    </Report>
    <Report instance="cvet-20200630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>2409403 - Disclosure - Revenue from Contracts with Customers - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.covetrus.com/role/RevenuefromContractswithCustomersNarrativeDetails</Role>
      <ShortName>Revenue from Contracts with Customers - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>38</Position>
    </Report>
    <Report instance="cvet-20200630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>2411404 - Disclosure - Leases - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.covetrus.com/role/LeasesNarrativeDetails</Role>
      <ShortName>Leases - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>39</Position>
    </Report>
    <Report instance="cvet-20200630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>2414405 - Disclosure - Other Intangibles, Net - Finite Lived Intangible Assets (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.covetrus.com/role/OtherIntangiblesNetFiniteLivedIntangibleAssetsDetails</Role>
      <ShortName>Other Intangibles, Net - Finite Lived Intangible Assets (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>40</Position>
    </Report>
    <Report instance="cvet-20200630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>2415406 - Disclosure - Other Intangibles, Net - Amortization of Intangible Assets (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.covetrus.com/role/OtherIntangiblesNetAmortizationofIntangibleAssetsDetails</Role>
      <ShortName>Other Intangibles, Net - Amortization of Intangible Assets (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>41</Position>
    </Report>
    <Report instance="cvet-20200630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>2418407 - Disclosure - Long-term Debt and Other Borrowings, Net - Schedule of Debt (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.covetrus.com/role/LongtermDebtandOtherBorrowingsNetScheduleofDebtDetails</Role>
      <ShortName>Long-term Debt and Other Borrowings, Net - Schedule of Debt (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>42</Position>
    </Report>
    <Report instance="cvet-20200630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>2419408 - Disclosure - Long-term Debt and Other Borrowings, Net - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.covetrus.com/role/LongtermDebtandOtherBorrowingsNetNarrativeDetails</Role>
      <ShortName>Long-term Debt and Other Borrowings, Net - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>43</Position>
    </Report>
    <Report instance="cvet-20200630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>2422409 - Disclosure - Derivatives and Financial Instruments - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.covetrus.com/role/DerivativesandFinancialInstrumentsNarrativeDetails</Role>
      <ShortName>Derivatives and Financial Instruments - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>44</Position>
    </Report>
    <Report instance="cvet-20200630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>2423410 - Disclosure - Derivatives and Financial Instruments - Balance Sheet Location (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.covetrus.com/role/DerivativesandFinancialInstrumentsBalanceSheetLocationDetails</Role>
      <ShortName>Derivatives and Financial Instruments - Balance Sheet Location (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>45</Position>
    </Report>
    <Report instance="cvet-20200630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>2424411 - Disclosure - Derivatives and Financial Instruments - Income Statement Location (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.covetrus.com/role/DerivativesandFinancialInstrumentsIncomeStatementLocationDetails</Role>
      <ShortName>Derivatives and Financial Instruments - Income Statement Location (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>46</Position>
    </Report>
    <Report instance="cvet-20200630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>2427412 - Disclosure - Fair Value - Narrative and Schedule Financial Instruments Measured at Fair Value on a Recurring Basis (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.covetrus.com/role/FairValueNarrativeandScheduleFinancialInstrumentsMeasuredatFairValueonaRecurringBasisDetails</Role>
      <ShortName>Fair Value - Narrative and Schedule Financial Instruments Measured at Fair Value on a Recurring Basis (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>47</Position>
    </Report>
    <Report instance="cvet-20200630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>2429413 - Disclosure - Commitments and Contingencies (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.covetrus.com/role/CommitmentsandContingenciesDetails</Role>
      <ShortName>Commitments and Contingencies (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.covetrus.com/role/CommitmentsandContingencies</ParentRole>
      <Position>48</Position>
    </Report>
    <Report instance="cvet-20200630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>2432414 - Disclosure - Redeemable Non-controlling Interests - Summary of Redeemable Non-controlling Interests (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.covetrus.com/role/RedeemableNoncontrollingInterestsSummaryofRedeemableNoncontrollingInterestsDetails</Role>
      <ShortName>Redeemable Non-controlling Interests - Summary of Redeemable Non-controlling Interests (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>49</Position>
    </Report>
    <Report instance="cvet-20200630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R50.htm</HtmlFileName>
      <LongName>2434415 - Disclosure - Redeemable, Convertible Series A Preferred Stock (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.covetrus.com/role/RedeemableConvertibleSeriesAPreferredStockDetails</Role>
      <ShortName>Redeemable, Convertible Series A Preferred Stock (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.covetrus.com/role/RedeemableConvertibleSeriesAPreferredStock</ParentRole>
      <Position>50</Position>
    </Report>
    <Report instance="cvet-20200630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R51.htm</HtmlFileName>
      <LongName>2437416 - Disclosure - Accumulated Other Comprehensive Income (Loss) - Components of Accumulated Other Comprehensive Loss (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.covetrus.com/role/AccumulatedOtherComprehensiveIncomeLossComponentsofAccumulatedOtherComprehensiveLossDetails</Role>
      <ShortName>Accumulated Other Comprehensive Income (Loss) - Components of Accumulated Other Comprehensive Loss (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.covetrus.com/role/AccumulatedOtherComprehensiveIncomeLossTables</ParentRole>
      <Position>51</Position>
    </Report>
    <Report instance="cvet-20200630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R52.htm</HtmlFileName>
      <LongName>2439417 - Disclosure - Income Taxes - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.covetrus.com/role/IncomeTaxesNarrativeDetails</Role>
      <ShortName>Income Taxes - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>52</Position>
    </Report>
    <Report instance="cvet-20200630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R53.htm</HtmlFileName>
      <LongName>2442418 - Disclosure - Earnings (Loss) Per Share - Reconciliation of Basic Shares to Diluted Shares (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.covetrus.com/role/EarningsLossPerShareReconciliationofBasicSharestoDilutedSharesDetails</Role>
      <ShortName>Earnings (Loss) Per Share - Reconciliation of Basic Shares to Diluted Shares (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.covetrus.com/role/EarningsLossPerShareTables</ParentRole>
      <Position>53</Position>
    </Report>
    <Report instance="cvet-20200630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R54.htm</HtmlFileName>
      <LongName>2444419 - Disclosure - Share-Based Compensation (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.covetrus.com/role/ShareBasedCompensationDetails</Role>
      <ShortName>Share-Based Compensation (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.covetrus.com/role/ShareBasedCompensation</ParentRole>
      <Position>54</Position>
    </Report>
    <Report instance="cvet-20200630.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R55.htm</HtmlFileName>
      <LongName>2448420 - Disclosure - Segment Data - Operating Results by Segment (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.covetrus.com/role/SegmentDataOperatingResultsbySegmentDetails</Role>
      <ShortName>Segment Data - Operating Results by Segment (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>55</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-Q" original="cvet-20200630.htm">cvet-20200630.htm</File>
    <File>cvet-20200630.xsd</File>
    <File>cvet-20200630_cal.xml</File>
    <File>cvet-20200630_def.xml</File>
    <File>cvet-20200630_lab.xml</File>
    <File>cvet-20200630_pre.xml</File>
    <File>cvet20200630exhibit311.htm</File>
    <File>cvet20200630exhibit312.htm</File>
    <File>cvet20200630exhibit321.htm</File>
    <File>cvet20200630exhibit322.htm</File>
  </InputFiles>
  <SupplementalFiles>
    <File>cvet-20200630_g1.gif</File>
  </SupplementalFiles>
  <BaseTaxonomies>
    <BaseTaxonomy>http://xbrl.sec.gov/stpr/2018-01-31</BaseTaxonomy>
    <BaseTaxonomy>http://xbrl.sec.gov/dei/2019-01-31</BaseTaxonomy>
    <BaseTaxonomy>http://fasb.org/srt/2020-01-31</BaseTaxonomy>
    <BaseTaxonomy>http://fasb.org/us-gaap/2020-01-31</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
