<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.19.1</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>134</ContextCount>
  <ElementCount>238</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>false</FootnotesReported>
  <SegmentCount>42</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>4</UnitCount>
  <MyReports>
    <Report instance="nuvr-20190331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>000 - Document - Document And Entity Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nuvera.net/role/DocumentAndEntityInformation</Role>
      <ShortName>Document And Entity Information</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="nuvr-20190331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>001 - Statement - CONSOLIDATED STATEMENTS OF INCOME (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nuvera.net/role/ConsolidatedIncomeStatement</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF INCOME (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="nuvr-20190331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>002 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nuvera.net/role/ConsolidatedComprehensiveIncome</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="nuvr-20190331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>003 - Statement - CONSOLIDATED BALANCE SHEETS (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nuvera.net/role/ConsolidatedBalanceSheet</Role>
      <ShortName>CONSOLIDATED BALANCE SHEETS (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="nuvr-20190331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>004 - Statement - CONSOLIDATED BALANCE SHEETS (Unaudited) (Parentheticals)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nuvera.net/role/ConsolidatedBalanceSheet_Parentheticals</Role>
      <ShortName>CONSOLIDATED BALANCE SHEETS (Unaudited) (Parentheticals)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="nuvr-20190331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>005 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nuvera.net/role/ConsolidatedCashFlow</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF CASH FLOWS (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="nuvr-20190331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>006 - Statement - CONSOLIDATED STATEMENTS OF STOCKHOLDERS` EQUITY (Unaudited)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nuvera.net/role/ShareholdersEquityType2or3</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF STOCKHOLDERS` EQUITY (Unaudited)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="nuvr-20190331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>007 - Disclosure - Basis of Presentation and Consolidation</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nuvera.net/role/BasisofPresentationandConsolidation</Role>
      <ShortName>Basis of Presentation and Consolidation</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="nuvr-20190331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>008 - Disclosure - Revenue Recognition</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nuvera.net/role/RevenueRecognition</Role>
      <ShortName>Revenue Recognition</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="nuvr-20190331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>009 - Disclosure - Leases</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nuvera.net/role/Leases</Role>
      <ShortName>Leases</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="nuvr-20190331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>010 - Disclosure - Acquisitions and Dispositions</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nuvera.net/role/AcquisitionsandDispositions</Role>
      <ShortName>Acquisitions and Dispositions</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="nuvr-20190331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>011 - Disclosure - Fair Value Measurements</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nuvera.net/role/FairValueMeasurements</Role>
      <ShortName>Fair Value Measurements</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="nuvr-20190331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>012 - Disclosure - Goodwill and Intangibles</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nuvera.net/role/GoodwillandIntangibles</Role>
      <ShortName>Goodwill and Intangibles</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="nuvr-20190331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>013 - Disclosure - Secured Credit Facility</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nuvera.net/role/SecuredCreditFacility</Role>
      <ShortName>Secured Credit Facility</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="nuvr-20190331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>014 - Disclosure - Interest Rate Swaps</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nuvera.net/role/InterestRateSwaps</Role>
      <ShortName>Interest Rate Swaps</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="nuvr-20190331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>015 - Disclosure - Other Investments</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nuvera.net/role/OtherInvestments</Role>
      <ShortName>Other Investments</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="nuvr-20190331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>016 - Disclosure - Guarantees</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nuvera.net/role/Guarantees</Role>
      <ShortName>Guarantees</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="nuvr-20190331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>017 - Disclosure - Restricted Stock Units (RSU)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nuvera.net/role/RestrictedStockUnitsRSU</Role>
      <ShortName>Restricted Stock Units (RSU)</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="nuvr-20190331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>018 - Disclosure - Segment Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nuvera.net/role/SegmentInformation</Role>
      <ShortName>Segment Information</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="nuvr-20190331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>019 - Disclosure - Commitments and Contingencies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nuvera.net/role/CommitmentsandContingencies</Role>
      <ShortName>Commitments and Contingencies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>20</Position>
    </Report>
    <Report instance="nuvr-20190331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>020 - Disclosure - Broadband Grants</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nuvera.net/role/BroadbandGrants</Role>
      <ShortName>Broadband Grants</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>21</Position>
    </Report>
    <Report instance="nuvr-20190331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>021 - Disclosure - Subsequent Events</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nuvera.net/role/SubsequentEvents</Role>
      <ShortName>Subsequent Events</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>22</Position>
    </Report>
    <Report instance="nuvr-20190331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>022 - Disclosure - Accounting Policies, by Policy (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nuvera.net/role/AccountingPoliciesByPolicy</Role>
      <ShortName>Accounting Policies, by Policy (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <Position>23</Position>
    </Report>
    <Report instance="nuvr-20190331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>023 - Disclosure - Revenue Recognition (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nuvera.net/role/RevenueRecognitionTables</Role>
      <ShortName>Revenue Recognition (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.nuvera.net/role/RevenueRecognition</ParentRole>
      <Position>24</Position>
    </Report>
    <Report instance="nuvr-20190331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>024 - Disclosure - Leases (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nuvera.net/role/LeasesTables</Role>
      <ShortName>Leases (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.nuvera.net/role/Leases</ParentRole>
      <Position>25</Position>
    </Report>
    <Report instance="nuvr-20190331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>025 - Disclosure - Acquisitions and Dispositions (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nuvera.net/role/AcquisitionsandDispositionsTables</Role>
      <ShortName>Acquisitions and Dispositions (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.nuvera.net/role/AcquisitionsandDispositions</ParentRole>
      <Position>26</Position>
    </Report>
    <Report instance="nuvr-20190331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>026 - Disclosure - Goodwill and Intangibles (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nuvera.net/role/GoodwillandIntangiblesTables</Role>
      <ShortName>Goodwill and Intangibles (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.nuvera.net/role/GoodwillandIntangibles</ParentRole>
      <Position>27</Position>
    </Report>
    <Report instance="nuvr-20190331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>027 - Disclosure - Restricted Stock Units (RSU) (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nuvera.net/role/RestrictedStockUnitsRSUTables</Role>
      <ShortName>Restricted Stock Units (RSU) (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.nuvera.net/role/RestrictedStockUnitsRSU</ParentRole>
      <Position>28</Position>
    </Report>
    <Report instance="nuvr-20190331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>028 - Disclosure - Basis of Presentation and Consolidation (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nuvera.net/role/BasisofPresentationandConsolidationDetails</Role>
      <ShortName>Basis of Presentation and Consolidation (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.nuvera.net/role/BasisofPresentationandConsolidation</ParentRole>
      <Position>29</Position>
    </Report>
    <Report instance="nuvr-20190331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>029 - Disclosure - Revenue Recognition (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nuvera.net/role/RevenueRecognitionDetails</Role>
      <ShortName>Revenue Recognition (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.nuvera.net/role/RevenueRecognitionTables</ParentRole>
      <Position>30</Position>
    </Report>
    <Report instance="nuvr-20190331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>030 - Disclosure - Revenue Recognition (Details) - Revenue from contracts with customers</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nuvera.net/role/RevenuefromcontractswithcustomersTable</Role>
      <ShortName>Revenue Recognition (Details) - Revenue from contracts with customers</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.nuvera.net/role/RevenueRecognitionTables</ParentRole>
      <Position>31</Position>
    </Report>
    <Report instance="nuvr-20190331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>031 - Disclosure - Revenue Recognition (Details) - Receivables, contracts assets and contract liabilities from revenue contracts with customers</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nuvera.net/role/ReceivablescontractsassetsandcontractliabilitiesfromrevenuecontractswithcustomersTable</Role>
      <ShortName>Revenue Recognition (Details) - Receivables, contracts assets and contract liabilities from revenue contracts with customers</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.nuvera.net/role/RevenueRecognitionTables</ParentRole>
      <Position>32</Position>
    </Report>
    <Report instance="nuvr-20190331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>032 - Disclosure - Leases (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nuvera.net/role/LeasesDetails</Role>
      <ShortName>Leases (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.nuvera.net/role/LeasesTables</ParentRole>
      <Position>33</Position>
    </Report>
    <Report instance="nuvr-20190331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>033 - Disclosure - Leases (Details) - ROU and operating lease liabilities</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nuvera.net/role/ROUandoperatingleaseliabilitiesTable</Role>
      <ShortName>Leases (Details) - ROU and operating lease liabilities</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.nuvera.net/role/LeasesTables</ParentRole>
      <Position>34</Position>
    </Report>
    <Report instance="nuvr-20190331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>034 - Disclosure - Leases (Details) - Maturity analysis under these lease agreements</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nuvera.net/role/MaturityanalysisundertheseleaseagreementsTable</Role>
      <ShortName>Leases (Details) - Maturity analysis under these lease agreements</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.nuvera.net/role/LeasesTables</ParentRole>
      <Position>35</Position>
    </Report>
    <Report instance="nuvr-20190331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>035 - Disclosure - Leases (Details) - Lease expense</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nuvera.net/role/LeaseexpenseTable</Role>
      <ShortName>Leases (Details) - Lease expense</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.nuvera.net/role/LeasesTables</ParentRole>
      <Position>36</Position>
    </Report>
    <Report instance="nuvr-20190331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>036 - Disclosure - Acquisitions and Dispositions (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nuvera.net/role/AcquisitionsandDispositionsDetails</Role>
      <ShortName>Acquisitions and Dispositions (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.nuvera.net/role/AcquisitionsandDispositionsTables</ParentRole>
      <Position>37</Position>
    </Report>
    <Report instance="nuvr-20190331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>037 - Disclosure - Acquisitions and Dispositions (Details) - Allocation of the acquisition value of Scott-Rice</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nuvera.net/role/AllocationoftheacquisitionvalueofScottRiceTable</Role>
      <ShortName>Acquisitions and Dispositions (Details) - Allocation of the acquisition value of Scott-Rice</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.nuvera.net/role/AcquisitionsandDispositionsTables</ParentRole>
      <Position>38</Position>
    </Report>
    <Report instance="nuvr-20190331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>038 - Disclosure - Acquisitions and Dispositions (Details) - Pro forma statements</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nuvera.net/role/ProformastatementsTable</Role>
      <ShortName>Acquisitions and Dispositions (Details) - Pro forma statements</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.nuvera.net/role/AcquisitionsandDispositionsTables</ParentRole>
      <Position>39</Position>
    </Report>
    <Report instance="nuvr-20190331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>039 - Disclosure - Goodwill and Intangibles (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nuvera.net/role/GoodwillandIntangiblesDetails</Role>
      <ShortName>Goodwill and Intangibles (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.nuvera.net/role/GoodwillandIntangiblesTables</ParentRole>
      <Position>40</Position>
    </Report>
    <Report instance="nuvr-20190331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>040 - Disclosure - Goodwill and Intangibles (Details) - Components of identified intangible assets</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nuvera.net/role/ComponentsofidentifiedintangibleassetsTable</Role>
      <ShortName>Goodwill and Intangibles (Details) - Components of identified intangible assets</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.nuvera.net/role/GoodwillandIntangiblesTables</ParentRole>
      <Position>41</Position>
    </Report>
    <Report instance="nuvr-20190331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>041 - Disclosure - Goodwill and Intangibles (Details) - Summary of Future Amortization Expense</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nuvera.net/role/SummaryofFutureAmortizationExpenseTable</Role>
      <ShortName>Goodwill and Intangibles (Details) - Summary of Future Amortization Expense</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.nuvera.net/role/GoodwillandIntangiblesTables</ParentRole>
      <Position>42</Position>
    </Report>
    <Report instance="nuvr-20190331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>042 - Disclosure - Secured Credit Facility (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nuvera.net/role/SecuredCreditFacilityDetails</Role>
      <ShortName>Secured Credit Facility (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.nuvera.net/role/SecuredCreditFacility</ParentRole>
      <Position>43</Position>
    </Report>
    <Report instance="nuvr-20190331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>043 - Disclosure - Interest Rate Swaps (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nuvera.net/role/InterestRateSwapsDetails</Role>
      <ShortName>Interest Rate Swaps (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.nuvera.net/role/InterestRateSwaps</ParentRole>
      <Position>44</Position>
    </Report>
    <Report instance="nuvr-20190331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>044 - Disclosure - Other Investments (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nuvera.net/role/OtherInvestmentsDetails</Role>
      <ShortName>Other Investments (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.nuvera.net/role/OtherInvestments</ParentRole>
      <Position>45</Position>
    </Report>
    <Report instance="nuvr-20190331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>045 - Disclosure - Guarantees (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nuvera.net/role/GuaranteesDetails</Role>
      <ShortName>Guarantees (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.nuvera.net/role/Guarantees</ParentRole>
      <Position>46</Position>
    </Report>
    <Report instance="nuvr-20190331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>046 - Disclosure - Restricted Stock Units (RSU) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nuvera.net/role/RestrictedStockUnitsRSUDetails</Role>
      <ShortName>Restricted Stock Units (RSU) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.nuvera.net/role/RestrictedStockUnitsRSUTables</ParentRole>
      <Position>47</Position>
    </Report>
    <Report instance="nuvr-20190331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>047 - Disclosure - Restricted Stock Units (RSU) (Details) - RSUs currently issued or forfeited</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nuvera.net/role/RSUscurrentlyissuedorforfeitedTable</Role>
      <ShortName>Restricted Stock Units (RSU) (Details) - RSUs currently issued or forfeited</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.nuvera.net/role/RestrictedStockUnitsRSUTables</ParentRole>
      <Position>48</Position>
    </Report>
    <Report instance="nuvr-20190331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>048 - Disclosure - Segment Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nuvera.net/role/SegmentInformationDetails</Role>
      <ShortName>Segment Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.nuvera.net/role/SegmentInformation</ParentRole>
      <Position>49</Position>
    </Report>
    <Report instance="nuvr-20190331.xml">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R50.htm</HtmlFileName>
      <LongName>049 - Disclosure - Broadband Grants (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.nuvera.net/role/BroadbandGrantsDetails</Role>
      <ShortName>Broadband Grants (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.nuvera.net/role/BroadbandGrants</ParentRole>
      <Position>50</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <InputFiles>
    <File>nuvr-20190331.xml</File>
    <File>nuvr-20190331.xsd</File>
    <File>nuvr-20190331_cal.xml</File>
    <File>nuvr-20190331_def.xml</File>
    <File>nuvr-20190331_lab.xml</File>
    <File>nuvr-20190331_pre.xml</File>
  </InputFiles>
  <SupplementalFiles/>
  <BaseTaxonomies>
    <BaseTaxonomy>http://fasb.org/srt/2019-01-31</BaseTaxonomy>
    <BaseTaxonomy>http://xbrl.sec.gov/dei/2018-01-31</BaseTaxonomy>
    <BaseTaxonomy>http://fasb.org/us-gaap/2019-01-31</BaseTaxonomy>
    <BaseTaxonomy>http://xbrl.sec.gov/invest/2013-01-31</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
