<?xml version='1.0' encoding='UTF-8'?>
<FilingSummary>
  <Version>3.7.0.1</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>352</ContextCount>
  <ElementCount>361</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>false</FootnotesReported>
  <SegmentCount>94</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>8</UnitCount>
  <MyReports>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>0001000 - Document - Document and Entity Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/DocumentAndEntityInformation</Role>
      <ShortName>Document and Entity Information</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>1001000 - Statement - Condensed Consolidated Balance Sheets</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/CondensedConsolidatedBalanceSheets</Role>
      <ShortName>Condensed Consolidated Balance Sheets</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>1001001 - Statement - Condensed Consolidated Balance Sheets (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/CondensedConsolidatedBalanceSheetsParenthetical</Role>
      <ShortName>Condensed Consolidated Balance Sheets (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>1002000 - Statement - Condensed Consolidated Statements of Income</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/CondensedConsolidatedStatementsOfIncome</Role>
      <ShortName>Condensed Consolidated Statements of Income</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>1003000 - Statement - Condensed Consolidated Statements of Comprehensive Income</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/CondensedConsolidatedStatementsOfComprehensiveIncome</Role>
      <ShortName>Condensed Consolidated Statements of Comprehensive Income</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>1004000 - Statement - Condensed Consolidated Statement of Stockholders' Deficit</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/CondensedConsolidatedStatementOfStockholdersDeficit</Role>
      <ShortName>Condensed Consolidated Statement of Stockholders' Deficit</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>1005000 - Statement - Condensed Consolidated Statements of Cash Flows</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/CondensedConsolidatedStatementsOfCashFlows</Role>
      <ShortName>Condensed Consolidated Statements of Cash Flows</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>2101100 - Disclosure - ORGANIZATION AND BASIS OF PRESENTATION</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/OrganizationAndBasisOfPresentation</Role>
      <ShortName>ORGANIZATION AND BASIS OF PRESENTATION</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>2102100 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/SignificantAccountingPolicies</Role>
      <ShortName>SIGNIFICANT ACCOUNTING POLICIES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>2103100 - Disclosure - BUSINESS ACQUISITIONS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/BusinessAcquisitions</Role>
      <ShortName>BUSINESS ACQUISITIONS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>2104100 - Disclosure - INVESTMENTS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/Investments</Role>
      <ShortName>INVESTMENTS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>2105100 - Disclosure - FAIR VALUE MEASUREMENTS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/FairValueMeasurements</Role>
      <ShortName>FAIR VALUE MEASUREMENTS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>2106100 - Disclosure - INTANGIBLE ASSETS, NET</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/IntangibleAssetsNet</Role>
      <ShortName>INTANGIBLE ASSETS, NET</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>2107100 - Disclosure - GOODWILL</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/Goodwill</Role>
      <ShortName>GOODWILL</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>2108100 - Disclosure - DEBT</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/Debt</Role>
      <ShortName>DEBT</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>2109100 - Disclosure - REDEEMABLE LIMITED PARTNERS' CAPITAL</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/RedeemableLimitedPartnersCapital</Role>
      <ShortName>REDEEMABLE LIMITED PARTNERS' CAPITAL</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>2110100 - Disclosure - STOCKHOLDERS' DEFICIT</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/StockholdersDeficit</Role>
      <ShortName>STOCKHOLDERS' DEFICIT</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>2111100 - Disclosure - EARNINGS (LOSS) PER SHARE</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/EarningsLossPerShare</Role>
      <ShortName>EARNINGS (LOSS) PER SHARE</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>2112100 - Disclosure - STOCK-BASED COMPENSATION</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/StockBasedCompensation</Role>
      <ShortName>STOCK-BASED COMPENSATION</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>2113100 - Disclosure - INCOME TAXES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/IncomeTaxes</Role>
      <ShortName>INCOME TAXES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>20</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>2114100 - Disclosure - RELATED PARTY TRANSACTIONS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/RelatedPartyTransactions</Role>
      <ShortName>RELATED PARTY TRANSACTIONS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>21</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>2115100 - Disclosure - COMMITMENTS AND CONTINGENCIES</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/CommitmentsAndContingencies</Role>
      <ShortName>COMMITMENTS AND CONTINGENCIES</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>22</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>2116100 - Disclosure - SEGMENTS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/Segments</Role>
      <ShortName>SEGMENTS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>23</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>2202201 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/SignificantAccountingPoliciesPolicies</Role>
      <ShortName>SIGNIFICANT ACCOUNTING POLICIES (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <Position>24</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>2301301 - Disclosure - ORGANIZATION AND BASIS OF PRESENTATION (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/OrganizationAndBasisOfPresentationTables</Role>
      <ShortName>ORGANIZATION AND BASIS OF PRESENTATION (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.premierinc.com/role/OrganizationAndBasisOfPresentation</ParentRole>
      <Position>25</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>2303301 - Disclosure - BUSINESS ACQUISITIONS (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/BusinessAcquisitionsTables</Role>
      <ShortName>BUSINESS ACQUISITIONS (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.premierinc.com/role/BusinessAcquisitions</ParentRole>
      <Position>26</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>2304301 - Disclosure - INVESTMENTS (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/InvestmentsTables</Role>
      <ShortName>INVESTMENTS (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.premierinc.com/role/Investments</ParentRole>
      <Position>27</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>2305301 - Disclosure - FAIR VALUE MEASUREMENTS (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/FairValueMeasurementsTables</Role>
      <ShortName>FAIR VALUE MEASUREMENTS (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.premierinc.com/role/FairValueMeasurements</ParentRole>
      <Position>28</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>2306301 - Disclosure - INTANGIBLE ASSETS, NET (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/IntangibleAssetsNetTables</Role>
      <ShortName>INTANGIBLE ASSETS, NET (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.premierinc.com/role/IntangibleAssetsNet</ParentRole>
      <Position>29</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>2307301 - Disclosure - GOODWILL (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/GoodwillTables</Role>
      <ShortName>GOODWILL (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.premierinc.com/role/Goodwill</ParentRole>
      <Position>30</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>2308301 - Disclosure - DEBT (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/DebtTables</Role>
      <ShortName>DEBT (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.premierinc.com/role/Debt</ParentRole>
      <Position>31</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>2309301 - Disclosure - REDEEMABLE LIMITED PARTNERS' CAPITAL (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/RedeemableLimitedPartnersCapitalTables</Role>
      <ShortName>REDEEMABLE LIMITED PARTNERS' CAPITAL (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.premierinc.com/role/RedeemableLimitedPartnersCapital</ParentRole>
      <Position>32</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>2311301 - Disclosure - EARNINGS (LOSS) PER SHARE (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/EarningsLossPerShareTables</Role>
      <ShortName>EARNINGS (LOSS) PER SHARE (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.premierinc.com/role/EarningsLossPerShare</ParentRole>
      <Position>33</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>2312301 - Disclosure - STOCK-BASED COMPENSATION (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/StockBasedCompensationTables</Role>
      <ShortName>STOCK-BASED COMPENSATION (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.premierinc.com/role/StockBasedCompensation</ParentRole>
      <Position>34</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>2316301 - Disclosure - SEGMENTS (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/SegmentsTables</Role>
      <ShortName>SEGMENTS (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.premierinc.com/role/Segments</ParentRole>
      <Position>35</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>2401402 - Disclosure - ORGANIZATION AND BASIS OF PRESENTATION - Organization (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/OrganizationAndBasisOfPresentationOrganizationNarrativeDetails</Role>
      <ShortName>ORGANIZATION AND BASIS OF PRESENTATION - Organization (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>36</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>2401403 - Disclosure - ORGANIZATION AND BASIS OF PRESENTATION - Basis of Presentation (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/OrganizationAndBasisOfPresentationBasisOfPresentationNarrativeDetails</Role>
      <ShortName>ORGANIZATION AND BASIS OF PRESENTATION - Basis of Presentation (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>37</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>2401404 - Disclosure - ORGANIZATION AND BASIS OF PRESENTATION - Schedule of Assets and Liabilities of Premier LP (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/OrganizationAndBasisOfPresentationScheduleOfAssetsAndLiabilitiesOfPremierLpDetails</Role>
      <ShortName>ORGANIZATION AND BASIS OF PRESENTATION - Schedule of Assets and Liabilities of Premier LP (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>38</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>2401405 - Disclosure - ORGANIZATION AND BASIS OF PRESENTATION - Schedule of Net Income Attributable to Premier LP (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/OrganizationAndBasisOfPresentationScheduleOfNetIncomeAttributableToPremierLpDetails</Role>
      <ShortName>ORGANIZATION AND BASIS OF PRESENTATION - Schedule of Net Income Attributable to Premier LP (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>39</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>2401406 - Disclosure - ORGANIZATION AND BASIS OF PRESENTATION - Schedule of Premier LP's Cash Flows (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/OrganizationAndBasisOfPresentationScheduleOfPremierLpsCashFlowsDetails</Role>
      <ShortName>ORGANIZATION AND BASIS OF PRESENTATION - Schedule of Premier LP's Cash Flows (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>40</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>2402402 - Disclosure - SIGNIFICANT ACCOUNTING POLICIES (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/SignificantAccountingPoliciesDetails</Role>
      <ShortName>SIGNIFICANT ACCOUNTING POLICIES (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.premierinc.com/role/SignificantAccountingPoliciesPolicies</ParentRole>
      <Position>41</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>2403402 - Disclosure - BUSINESS ACQUISITIONS - Acquisition of Innovatix, LLC and Essensa Ventures, LLC (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/BusinessAcquisitionsAcquisitionOfInnovatixLlcAndEssensaVenturesLlcNarrativeDetails</Role>
      <ShortName>BUSINESS ACQUISITIONS - Acquisition of Innovatix, LLC and Essensa Ventures, LLC (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>42</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>2403403 - Disclosure - BUSINESS ACQUISITIONS - Schedule of Preliminary Fair Values Assigned to Net Assets Acquired and Liabilities Assumed (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/BusinessAcquisitionsScheduleOfPreliminaryFairValuesAssignedToNetAssetsAcquiredAndLiabilitiesAssumedDetails</Role>
      <ShortName>BUSINESS ACQUISITIONS - Schedule of Preliminary Fair Values Assigned to Net Assets Acquired and Liabilities Assumed (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>43</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>2403404 - Disclosure - BUSINESS ACQUISITIONS - Acquisition of Acro Pharmaceutical Services LLC and Community Pharmacy Services, LLC (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/BusinessAcquisitionsAcquisitionOfAcroPharmaceuticalServicesLlcAndCommunityPharmacyServicesLlcNarrativeDetails</Role>
      <ShortName>BUSINESS ACQUISITIONS - Acquisition of Acro Pharmaceutical Services LLC and Community Pharmacy Services, LLC (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>44</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>2404402 - Disclosure - INVESTMENTS - Schedule of Investments in Unconsolidated Affiliates (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/InvestmentsScheduleOfInvestmentsInUnconsolidatedAffiliatesDetails</Role>
      <ShortName>INVESTMENTS - Schedule of Investments in Unconsolidated Affiliates (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>45</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>2404403 - Disclosure - INVESTMENTS - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/InvestmentsNarrativeDetails</Role>
      <ShortName>INVESTMENTS - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>46</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>2404404 - Disclosure - INVESTMENTS - Schedule of Marketable Securities, Classified as Available-For-Sale (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/InvestmentsScheduleOfMarketableSecuritiesClassifiedAsAvailableForSaleDetails</Role>
      <ShortName>INVESTMENTS - Schedule of Marketable Securities, Classified as Available-For-Sale (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>47</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>2405402 - Disclosure - FAIR VALUE MEASUREMENTS - Schedule of Financial Assets and Liabilities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/FairValueMeasurementsScheduleOfFinancialAssetsAndLiabilitiesDetails</Role>
      <ShortName>FAIR VALUE MEASUREMENTS - Schedule of Financial Assets and Liabilities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>48</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>2405403 - Disclosure - FAIR VALUE MEASUREMENTS - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/FairValueMeasurementsNarrativeDetails</Role>
      <ShortName>FAIR VALUE MEASUREMENTS - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>49</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R50.htm</HtmlFileName>
      <LongName>2405404 - Disclosure - FAIR VALUE MEASUREMENTS - Reconciliation of Earn-Out Liabilities and FFF Put and Call Rights (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/FairValueMeasurementsReconciliationOfEarnOutLiabilitiesAndFffPutAndCallRightsDetails</Role>
      <ShortName>FAIR VALUE MEASUREMENTS - Reconciliation of Earn-Out Liabilities and FFF Put and Call Rights (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>50</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R51.htm</HtmlFileName>
      <LongName>2406402 - Disclosure - INTANGIBLE ASSETS, NET - Schedule of Intangible Assets, Net (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/IntangibleAssetsNetScheduleOfIntangibleAssetsNetDetails</Role>
      <ShortName>INTANGIBLE ASSETS, NET - Schedule of Intangible Assets, Net (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>51</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R52.htm</HtmlFileName>
      <LongName>2406403 - Disclosure - INTANGIBLE ASSETS, NET - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/IntangibleAssetsNetNarrativeDetails</Role>
      <ShortName>INTANGIBLE ASSETS, NET - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>52</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R53.htm</HtmlFileName>
      <LongName>2407402 - Disclosure - GOODWILL (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/GoodwillDetails</Role>
      <ShortName>GOODWILL (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.premierinc.com/role/GoodwillTables</ParentRole>
      <Position>53</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R54.htm</HtmlFileName>
      <LongName>2408402 - Disclosure - DEBT - Schedule of Long-Term Debt (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/DebtScheduleOfLongTermDebtDetails</Role>
      <ShortName>DEBT - Schedule of Long-Term Debt (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>54</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R55.htm</HtmlFileName>
      <LongName>2408403 - Disclosure - DEBT - Credit Facility (Narrative) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/DebtCreditFacilityNarrativeDetails</Role>
      <ShortName>DEBT - Credit Facility (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>55</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R56.htm</HtmlFileName>
      <LongName>2408404 - Disclosure - DEBT - Notes Payable (Narrative) (Details)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.premierinc.com/role/DebtNotesPayableNarrativeDetails</Role>
      <ShortName>DEBT - Notes Payable (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>56</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R57.htm</HtmlFileName>
      <LongName>2409402 - Disclosure - REDEEMABLE LIMITED PARTNERS' CAPITAL - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/RedeemableLimitedPartnersCapitalNarrativeDetails</Role>
      <ShortName>REDEEMABLE LIMITED PARTNERS' CAPITAL - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>57</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R58.htm</HtmlFileName>
      <LongName>2409403 - Disclosure - REDEEMABLE LIMITED PARTNERS' CAPITAL - Changes in Redeemable Limited Partners' Capital (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/RedeemableLimitedPartnersCapitalChangesInRedeemableLimitedPartnersCapitalDetails</Role>
      <ShortName>REDEEMABLE LIMITED PARTNERS' CAPITAL - Changes in Redeemable Limited Partners' Capital (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>58</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R59.htm</HtmlFileName>
      <LongName>2409404 - Disclosure - REDEEMABLE LIMITED PARTNERS' CAPITAL - Schedule of Quarterly Distributions to Limited Partners (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/RedeemableLimitedPartnersCapitalScheduleOfQuarterlyDistributionsToLimitedPartnersDetails</Role>
      <ShortName>REDEEMABLE LIMITED PARTNERS' CAPITAL - Schedule of Quarterly Distributions to Limited Partners (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>59</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R60.htm</HtmlFileName>
      <LongName>2410401 - Disclosure - STOCKHOLDERS' DEFICIT (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/StockholdersDeficitDetails</Role>
      <ShortName>STOCKHOLDERS' DEFICIT (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.premierinc.com/role/StockholdersDeficit</ParentRole>
      <Position>60</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R61.htm</HtmlFileName>
      <LongName>2411402 - Disclosure - EARNINGS (LOSS) PER SHARE - Reconciliation of the Numerator and Denominator Used for Basic and Diluted Earnings (Loss) Per Share (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/EarningsLossPerShareReconciliationOfNumeratorAndDenominatorUsedForBasicAndDilutedEarningsLossPerShareDetails</Role>
      <ShortName>EARNINGS (LOSS) PER SHARE - Reconciliation of the Numerator and Denominator Used for Basic and Diluted Earnings (Loss) Per Share (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.premierinc.com/role/EarningsLossPerShareTables</ParentRole>
      <Position>61</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R62.htm</HtmlFileName>
      <LongName>2411403 - Disclosure - EARNINGS (LOSS) PER SHARE - Schedule of Exchange Agreement (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/EarningsLossPerShareScheduleOfExchangeAgreementDetails</Role>
      <ShortName>EARNINGS (LOSS) PER SHARE - Schedule of Exchange Agreement (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.premierinc.com/role/EarningsLossPerShareTables</ParentRole>
      <Position>62</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R63.htm</HtmlFileName>
      <LongName>2412402 - Disclosure - STOCK-BASED COMPENSATION - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/StockBasedCompensationNarrativeDetails</Role>
      <ShortName>STOCK-BASED COMPENSATION - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>63</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R64.htm</HtmlFileName>
      <LongName>2412403 - Disclosure - STOCK-BASED COMPENSATION - Schedule of Information Related to Restricted Stock, Performance Share Awards and Stock Options (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/StockBasedCompensationScheduleOfInformationRelatedToRestrictedStockPerformanceShareAwardsAndStockOptionsDetails</Role>
      <ShortName>STOCK-BASED COMPENSATION - Schedule of Information Related to Restricted Stock, Performance Share Awards and Stock Options (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>64</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R65.htm</HtmlFileName>
      <LongName>2412404 - Disclosure - STOCK-BASED COMPENSATION - Schedule of Unrecognized Stock-Based Compensation Expense (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/StockBasedCompensationScheduleOfUnrecognizedStockBasedCompensationExpenseDetails</Role>
      <ShortName>STOCK-BASED COMPENSATION - Schedule of Unrecognized Stock-Based Compensation Expense (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>65</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R66.htm</HtmlFileName>
      <LongName>2412405 - Disclosure - STOCK-BASED COMPENSATION - Schedule of Aggregate Intrinsic Value of Stock Options (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/StockBasedCompensationScheduleOfAggregateIntrinsicValueOfStockOptionsDetails</Role>
      <ShortName>STOCK-BASED COMPENSATION - Schedule of Aggregate Intrinsic Value of Stock Options (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>66</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R67.htm</HtmlFileName>
      <LongName>2412406 - Disclosure - STOCK-BASED COMPENSATION - Assumptions Used for Determining the Fair Value of Stock Options Granted (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/StockBasedCompensationAssumptionsUsedForDeterminingFairValueOfStockOptionsGrantedDetails</Role>
      <ShortName>STOCK-BASED COMPENSATION - Assumptions Used for Determining the Fair Value of Stock Options Granted (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>67</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R68.htm</HtmlFileName>
      <LongName>2413401 - Disclosure - INCOME TAXES (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/IncomeTaxesDetails</Role>
      <ShortName>INCOME TAXES (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.premierinc.com/role/IncomeTaxes</ParentRole>
      <Position>68</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R69.htm</HtmlFileName>
      <LongName>2414401 - Disclosure - RELATED PARTY TRANSACTIONS (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/RelatedPartyTransactionsDetails</Role>
      <ShortName>RELATED PARTY TRANSACTIONS (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.premierinc.com/role/RelatedPartyTransactions</ParentRole>
      <Position>69</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R70.htm</HtmlFileName>
      <LongName>2416402 - Disclosure - SEGMENTS - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/SegmentsNarrativeDetails</Role>
      <ShortName>SEGMENTS - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>70</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R71.htm</HtmlFileName>
      <LongName>2416403 - Disclosure - SEGMENTS - Schedule of Segment Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/SegmentsScheduleOfSegmentInformationDetails</Role>
      <ShortName>SEGMENTS - Schedule of Segment Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>71</Position>
    </Report>
    <Report instance="pinc-20170331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R72.htm</HtmlFileName>
      <LongName>2416404 - Disclosure - SEGMENTS - Reconciliation of Income Before Income Taxes to Segment Adjusted EBITDA (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.premierinc.com/role/SegmentsReconciliationOfIncomeBeforeIncomeTaxesToSegmentAdjustedEbitdaDetails</Role>
      <ShortName>SEGMENTS - Reconciliation of Income Before Income Taxes to Segment Adjusted EBITDA (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>72</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <InputFiles>
    <File>pinc-20170331.xml</File>
    <File>pinc-20170331.xsd</File>
    <File>pinc-20170331_cal.xml</File>
    <File>pinc-20170331_def.xml</File>
    <File>pinc-20170331_lab.xml</File>
    <File>pinc-20170331_pre.xml</File>
  </InputFiles>
  <SupplementalFiles/>
  <BaseTaxonomies/>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
