<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.26.1</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>443</ContextCount>
  <ElementCount>391</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>false</FootnotesReported>
  <SegmentCount>145</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>15</UnitCount>
  <MyReports>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>0000001 - Document - Cover</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/Cover</Role>
      <ShortName>Cover</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>9952151 - Statement - Condensed Consolidated Statements of Operations</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/CondensedConsolidatedStatementsofOperations</Role>
      <ShortName>Condensed Consolidated Statements of Operations</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>9952152 - Statement - Condensed Consolidated Statements of Comprehensive (Loss) Income</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/CondensedConsolidatedStatementsofComprehensiveLossIncome</Role>
      <ShortName>Condensed Consolidated Statements of Comprehensive (Loss) Income</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>9952153 - Statement - Condensed Consolidated Balance Sheets</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/CondensedConsolidatedBalanceSheets</Role>
      <ShortName>Condensed Consolidated Balance Sheets</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>9952154 - Statement - Condensed Consolidated Balance Sheets (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/CondensedConsolidatedBalanceSheetsParenthetical</Role>
      <ShortName>Condensed Consolidated Balance Sheets (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>9952155 - Statement - Condensed Consolidated Statements of Cash Flows</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/CondensedConsolidatedStatementsofCashFlows</Role>
      <ShortName>Condensed Consolidated Statements of Cash Flows</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>9952156 - Statement - Condensed Consolidated Statements of Shareholders??? Equity (Deficit)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/CondensedConsolidatedStatementsofShareholdersEquityDeficit</Role>
      <ShortName>Condensed Consolidated Statements of Shareholders??? Equity (Deficit)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>9952157 - Disclosure - Organization and Description of Business</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/OrganizationandDescriptionofBusiness</Role>
      <ShortName>Organization and Description of Business</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>9952158 - Disclosure - Preparation of Condensed Consolidated Financial Statements</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/PreparationofCondensedConsolidatedFinancialStatements</Role>
      <ShortName>Preparation of Condensed Consolidated Financial Statements</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>9952159 - Disclosure - Merger and Purchase Price Allocation</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/MergerandPurchasePriceAllocation</Role>
      <ShortName>Merger and Purchase Price Allocation</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>9952160 - Disclosure - Goodwill</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/Goodwill</Role>
      <ShortName>Goodwill</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>9952161 - Disclosure - Notes and Other Debt, Net</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.uniti.com/role/NotesandOtherDebtNet</Role>
      <ShortName>Notes and Other Debt, Net</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>9952162 - Disclosure - Derivatives</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/Derivatives</Role>
      <ShortName>Derivatives</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>9952163 - Disclosure - Fair Value of Financial Instruments</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/FairValueofFinancialInstruments</Role>
      <ShortName>Fair Value of Financial Instruments</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>9952164 - Disclosure - Revenues</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/Revenues</Role>
      <ShortName>Revenues</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>9952165 - Disclosure - Employee Benefit Plans</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/EmployeeBenefitPlans</Role>
      <ShortName>Employee Benefit Plans</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>9952166 - Disclosure - Accumulated Other Comprehensive Income (Loss)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/AccumulatedOtherComprehensiveIncomeLoss</Role>
      <ShortName>Accumulated Other Comprehensive Income (Loss)</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>9952167 - Disclosure - (Loss) Earnings Per Share</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/LossEarningsPerShare</Role>
      <ShortName>(Loss) Earnings Per Share</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>9952168 - Disclosure - Segments</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/Segments</Role>
      <ShortName>Segments</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>9952169 - Disclosure - Commitments and Contingencies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/CommitmentsandContingencies</Role>
      <ShortName>Commitments and Contingencies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>20</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>9952170 - Disclosure - Supplementary Unrestricted Subsidiary Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/SupplementaryUnrestrictedSubsidiaryInformation</Role>
      <ShortName>Supplementary Unrestricted Subsidiary Information</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>21</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>995445 - Disclosure - Insider Trading Arrangements</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://xbrl.sec.gov/ecd/role/InsiderTradingArrangements</Role>
      <ShortName>Insider Trading Arrangements</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>22</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>9955511 - Disclosure - Preparation of Condensed Consolidated Financial Statements (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/PreparationofCondensedConsolidatedFinancialStatementsPolicies</Role>
      <ShortName>Preparation of Condensed Consolidated Financial Statements (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <Position>23</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>9955512 - Disclosure - Preparation of Condensed Consolidated Financial Statements (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/PreparationofCondensedConsolidatedFinancialStatementsTables</Role>
      <ShortName>Preparation of Condensed Consolidated Financial Statements (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.uniti.com/role/PreparationofCondensedConsolidatedFinancialStatements</ParentRole>
      <Position>24</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>9955513 - Disclosure - Merger and Purchase Price Allocation (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/MergerandPurchasePriceAllocationTables</Role>
      <ShortName>Merger and Purchase Price Allocation (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.uniti.com/role/MergerandPurchasePriceAllocation</ParentRole>
      <Position>25</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>9955514 - Disclosure - Goodwill (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/GoodwillTables</Role>
      <ShortName>Goodwill (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.uniti.com/role/Goodwill</ParentRole>
      <Position>26</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>9955515 - Disclosure - Notes and Other Debt, Net (Tables)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.uniti.com/role/NotesandOtherDebtNetTables</Role>
      <ShortName>Notes and Other Debt, Net (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.uniti.com/role/NotesandOtherDebtNet</ParentRole>
      <Position>27</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>9955516 - Disclosure - Derivatives (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/DerivativesTables</Role>
      <ShortName>Derivatives (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.uniti.com/role/Derivatives</ParentRole>
      <Position>28</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>9955517 - Disclosure - Fair Value of Financial Instruments (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/FairValueofFinancialInstrumentsTables</Role>
      <ShortName>Fair Value of Financial Instruments (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.uniti.com/role/FairValueofFinancialInstruments</ParentRole>
      <Position>29</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>9955518 - Disclosure - Revenues (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/RevenuesTables</Role>
      <ShortName>Revenues (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.uniti.com/role/Revenues</ParentRole>
      <Position>30</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>9955519 - Disclosure - Employee Benefit Plans (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/EmployeeBenefitPlansTables</Role>
      <ShortName>Employee Benefit Plans (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.uniti.com/role/EmployeeBenefitPlans</ParentRole>
      <Position>31</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>9955520 - Disclosure - Accumulated Other Comprehensive Income (Loss) (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/AccumulatedOtherComprehensiveIncomeLossTables</Role>
      <ShortName>Accumulated Other Comprehensive Income (Loss) (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.uniti.com/role/AccumulatedOtherComprehensiveIncomeLoss</ParentRole>
      <Position>32</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>9955521 - Disclosure - (Loss) Earnings Per Share (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/LossEarningsPerShareTables</Role>
      <ShortName>(Loss) Earnings Per Share (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.uniti.com/role/LossEarningsPerShare</ParentRole>
      <Position>33</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>9955522 - Disclosure - Segments (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/SegmentsTables</Role>
      <ShortName>Segments (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.uniti.com/role/Segments</ParentRole>
      <Position>34</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>9955523 - Disclosure - Supplementary Unrestricted Subsidiary Information (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/SupplementaryUnrestrictedSubsidiaryInformationTables</Role>
      <ShortName>Supplementary Unrestricted Subsidiary Information (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.uniti.com/role/SupplementaryUnrestrictedSubsidiaryInformation</ParentRole>
      <Position>35</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>9955524 - Disclosure - Organization and Description of Business (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/OrganizationandDescriptionofBusinessDetails</Role>
      <ShortName>Organization and Description of Business (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.uniti.com/role/OrganizationandDescriptionofBusiness</ParentRole>
      <Position>36</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>9955525 - Disclosure - Preparation of Condensed Consolidated Financial Statements - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/PreparationofCondensedConsolidatedFinancialStatementsNarrativeDetails</Role>
      <ShortName>Preparation of Condensed Consolidated Financial Statements - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.uniti.com/role/PreparationofCondensedConsolidatedFinancialStatementsTables</ParentRole>
      <Position>37</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>9955526 - Disclosure - Preparation of Condensed Consolidated Financial Statements - Schedule of Supplemental Cash Flow Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/PreparationofCondensedConsolidatedFinancialStatementsScheduleofSupplementalCashFlowInformationDetails</Role>
      <ShortName>Preparation of Condensed Consolidated Financial Statements - Schedule of Supplemental Cash Flow Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>38</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>9955527 - Disclosure - Merger and Purchase Price Allocation - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/MergerandPurchasePriceAllocationNarrativeDetails</Role>
      <ShortName>Merger and Purchase Price Allocation - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>39</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>9955528 - Disclosure - Merger and Purchase Price Allocation - Schedule of Merger Consideration (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/MergerandPurchasePriceAllocationScheduleofMergerConsiderationDetails</Role>
      <ShortName>Merger and Purchase Price Allocation - Schedule of Merger Consideration (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>40</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>9955529 - Disclosure - Merger and Purchase Price Allocation - Schedule of Preliminary Fair Values of the Assets Acquired and Liabilities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/MergerandPurchasePriceAllocationScheduleofPreliminaryFairValuesoftheAssetsAcquiredandLiabilitiesDetails</Role>
      <ShortName>Merger and Purchase Price Allocation - Schedule of Preliminary Fair Values of the Assets Acquired and Liabilities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>41</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>9955530 - Disclosure - Merger and Purchase Price Allocation - Schedule of Transaction Related and Other Costs (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/MergerandPurchasePriceAllocationScheduleofTransactionRelatedandOtherCostsDetails</Role>
      <ShortName>Merger and Purchase Price Allocation - Schedule of Transaction Related and Other Costs (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>42</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>9955531 - Disclosure - Merger and Purchase Price Allocation - Schedule of Unaudited Pro Forma Consolidated Results of Operations (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/MergerandPurchasePriceAllocationScheduleofUnauditedProFormaConsolidatedResultsofOperationsDetails</Role>
      <ShortName>Merger and Purchase Price Allocation - Schedule of Unaudited Pro Forma Consolidated Results of Operations (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>43</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>9955532 - Disclosure - Goodwill (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/GoodwillDetails</Role>
      <ShortName>Goodwill (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.uniti.com/role/GoodwillTables</ParentRole>
      <Position>44</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>9955533 - Disclosure - Notes and Other Debt, Net - Schedule of Notes and Other Debt (Details)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.uniti.com/role/NotesandOtherDebtNetScheduleofNotesandOtherDebtDetails</Role>
      <ShortName>Notes and Other Debt, Net - Schedule of Notes and Other Debt (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>45</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>9955534 - Disclosure - Notes and Other Debt, Net - Narrative (Details)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.uniti.com/role/NotesandOtherDebtNetNarrativeDetails</Role>
      <ShortName>Notes and Other Debt, Net - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>46</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>9955535 - Disclosure - Notes and Other Debt, Net - Uniti Credit Agreement (Narrative) (Details)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.uniti.com/role/NotesandOtherDebtNetUnitiCreditAgreementNarrativeDetails</Role>
      <ShortName>Notes and Other Debt, Net - Uniti Credit Agreement (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>47</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>9955536 - Disclosure - Notes and Other Debt, Net - Windstream Credit Agreement (Narrative) (Details)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.uniti.com/role/NotesandOtherDebtNetWindstreamCreditAgreementNarrativeDetails</Role>
      <ShortName>Notes and Other Debt, Net - Windstream Credit Agreement (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>48</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>9955537 - Disclosure - Notes and Other Debt, Net - Senior Unsecured Notes (Narrative) (Details)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.uniti.com/role/NotesandOtherDebtNetSeniorUnsecuredNotesNarrativeDetails</Role>
      <ShortName>Notes and Other Debt, Net - Senior Unsecured Notes (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>49</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R50.htm</HtmlFileName>
      <LongName>9955538 - Disclosure - Notes and Other Debt, Net - Kinetic ABS Notes (Narrative) (Details)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.uniti.com/role/NotesandOtherDebtNetKineticABSNotesNarrativeDetails</Role>
      <ShortName>Notes and Other Debt, Net - Kinetic ABS Notes (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>50</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R51.htm</HtmlFileName>
      <LongName>9955539 - Disclosure - Notes and Other Debt, Net - Schedule of Maturities of Long-Term Debt (Details)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.uniti.com/role/NotesandOtherDebtNetScheduleofMaturitiesofLongTermDebtDetails</Role>
      <ShortName>Notes and Other Debt, Net - Schedule of Maturities of Long-Term Debt (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>51</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R52.htm</HtmlFileName>
      <LongName>9955540 - Disclosure - Notes and Other Debt, Net - Gain (Loss) on Extinguishment of Debt (Narrative) (Details)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.uniti.com/role/NotesandOtherDebtNetGainLossonExtinguishmentofDebtNarrativeDetails</Role>
      <ShortName>Notes and Other Debt, Net - Gain (Loss) on Extinguishment of Debt (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>52</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R53.htm</HtmlFileName>
      <LongName>9955541 - Disclosure - Notes and Other Debt, Net - Deferred Financing Cost (Narrative) (Details)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.uniti.com/role/NotesandOtherDebtNetDeferredFinancingCostNarrativeDetails</Role>
      <ShortName>Notes and Other Debt, Net - Deferred Financing Cost (Narrative) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>53</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R54.htm</HtmlFileName>
      <LongName>9955542 - Disclosure - Notes and Other Debt, Net - Schedule of Interest Expense (Details)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.uniti.com/role/NotesandOtherDebtNetScheduleofInterestExpenseDetails</Role>
      <ShortName>Notes and Other Debt, Net - Schedule of Interest Expense (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>54</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R55.htm</HtmlFileName>
      <LongName>9955543 - Disclosure - Derivatives - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/DerivativesNarrativeDetails</Role>
      <ShortName>Derivatives - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>55</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R56.htm</HtmlFileName>
      <LongName>9955544 - Disclosure - Derivatives - Schedule of Derivative Instruments of Interest Rate Swap Agreements (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/DerivativesScheduleofDerivativeInstrumentsofInterestRateSwapAgreementsDetails</Role>
      <ShortName>Derivatives - Schedule of Derivative Instruments of Interest Rate Swap Agreements (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>56</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R57.htm</HtmlFileName>
      <LongName>9955545 - Disclosure - Derivatives - Schedule of Derivative Instruments (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/DerivativesScheduleofDerivativeInstrumentsDetails</Role>
      <ShortName>Derivatives - Schedule of Derivative Instruments (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>57</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R58.htm</HtmlFileName>
      <LongName>9955546 - Disclosure - Derivatives - Schedule of Offsetting Assets (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/DerivativesScheduleofOffsettingAssetsDetails</Role>
      <ShortName>Derivatives - Schedule of Offsetting Assets (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>58</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R59.htm</HtmlFileName>
      <LongName>9955547 - Disclosure - Derivatives - Schedule of Offsetting Liabilities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/DerivativesScheduleofOffsettingLiabilitiesDetails</Role>
      <ShortName>Derivatives - Schedule of Offsetting Liabilities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>59</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R60.htm</HtmlFileName>
      <LongName>9955548 - Disclosure - Fair Value of Financial Instruments (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/FairValueofFinancialInstrumentsDetails</Role>
      <ShortName>Fair Value of Financial Instruments (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.uniti.com/role/FairValueofFinancialInstrumentsTables</ParentRole>
      <Position>60</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R61.htm</HtmlFileName>
      <LongName>9955549 - Disclosure - Revenues - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/RevenuesNarrativeDetails</Role>
      <ShortName>Revenues - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>61</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R62.htm</HtmlFileName>
      <LongName>9955550 - Disclosure - Revenues - Schedule of Accounts Receivable (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/RevenuesScheduleofAccountsReceivableDetails</Role>
      <ShortName>Revenues - Schedule of Accounts Receivable (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>62</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R63.htm</HtmlFileName>
      <LongName>9955551 - Disclosure - Revenues - Schedule of Allowance for Credit Loss (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/RevenuesScheduleofAllowanceforCreditLossDetails</Role>
      <ShortName>Revenues - Schedule of Allowance for Credit Loss (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>63</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R64.htm</HtmlFileName>
      <LongName>9955552 - Disclosure - Revenues - Schedule of Contract Assets and Contract Liabilities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/RevenuesScheduleofContractAssetsandContractLiabilitiesDetails</Role>
      <ShortName>Revenues - Schedule of Contract Assets and Contract Liabilities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>64</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R65.htm</HtmlFileName>
      <LongName>9955553 - Disclosure - Revenues - Schedule of Revenues Disaggregated by Category (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/RevenuesScheduleofRevenuesDisaggregatedbyCategoryDetails</Role>
      <ShortName>Revenues - Schedule of Revenues Disaggregated by Category (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>65</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R66.htm</HtmlFileName>
      <LongName>9955554 - Disclosure - Revenues - Schedule of Capitalized Contract Cost (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/RevenuesScheduleofCapitalizedContractCostDetails</Role>
      <ShortName>Revenues - Schedule of Capitalized Contract Cost (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>66</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R67.htm</HtmlFileName>
      <LongName>9955555 - Disclosure - Employee Benefit Plans - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/EmployeeBenefitPlansNarrativeDetails</Role>
      <ShortName>Employee Benefit Plans - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>67</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R68.htm</HtmlFileName>
      <LongName>9955556 - Disclosure - Employee Benefit Plans - Schedule of Components of Pension Income (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/EmployeeBenefitPlansScheduleofComponentsofPensionIncomeDetails</Role>
      <ShortName>Employee Benefit Plans - Schedule of Components of Pension Income (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>68</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R69.htm</HtmlFileName>
      <LongName>9955557 - Disclosure - Accumulated Other Comprehensive Income (Loss) (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/AccumulatedOtherComprehensiveIncomeLossDetails</Role>
      <ShortName>Accumulated Other Comprehensive Income (Loss) (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.uniti.com/role/AccumulatedOtherComprehensiveIncomeLossTables</ParentRole>
      <Position>69</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R70.htm</HtmlFileName>
      <LongName>9955558 - Disclosure - (Loss) Earnings Per Share - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/LossEarningsPerShareNarrativeDetails</Role>
      <ShortName>(Loss) Earnings Per Share - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>70</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R71.htm</HtmlFileName>
      <LongName>9955559 - Disclosure - (Loss) Earnings Per Share - Schedule of Earnings Per Share Basic and Diluted (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/LossEarningsPerShareScheduleofEarningsPerShareBasicandDilutedDetails</Role>
      <ShortName>(Loss) Earnings Per Share - Schedule of Earnings Per Share Basic and Diluted (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>71</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R72.htm</HtmlFileName>
      <LongName>9955560 - Disclosure - Segments - Narrative (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/SegmentsNarrativeDetails</Role>
      <ShortName>Segments - Narrative (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>72</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R73.htm</HtmlFileName>
      <LongName>9955561 - Disclosure - Segments - Schedule of Segment Reporting Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/SegmentsScheduleofSegmentReportingInformationDetails</Role>
      <ShortName>Segments - Schedule of Segment Reporting Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>73</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R74.htm</HtmlFileName>
      <LongName>9955562 - Disclosure - Segments - Schedule of Capital Expenditures by Segment (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/SegmentsScheduleofCapitalExpendituresbySegmentDetails</Role>
      <ShortName>Segments - Schedule of Capital Expenditures by Segment (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>74</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R75.htm</HtmlFileName>
      <LongName>9955563 - Disclosure - Segments - Schedule of Reconciliation of Total Segment Revenues and Sales to Total Consolidated Revenues and Sales (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/SegmentsScheduleofReconciliationofTotalSegmentRevenuesandSalestoTotalConsolidatedRevenuesandSalesDetails</Role>
      <ShortName>Segments - Schedule of Reconciliation of Total Segment Revenues and Sales to Total Consolidated Revenues and Sales (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>75</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R76.htm</HtmlFileName>
      <LongName>9955564 - Disclosure - Segments - Schedule of Reconciliation of Segment Contribution Margin to Consolidated Net Income (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/SegmentsScheduleofReconciliationofSegmentContributionMargintoConsolidatedNetIncomeDetails</Role>
      <ShortName>Segments - Schedule of Reconciliation of Segment Contribution Margin to Consolidated Net Income (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>76</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R77.htm</HtmlFileName>
      <LongName>9955565 - Disclosure - Supplementary Unrestricted Subsidiary Information - Schedule of Consolidated Balance Sheet of Such Unrestricted Subsidiaries (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/SupplementaryUnrestrictedSubsidiaryInformationScheduleofConsolidatedBalanceSheetofSuchUnrestrictedSubsidiariesDetails</Role>
      <ShortName>Supplementary Unrestricted Subsidiary Information - Schedule of Consolidated Balance Sheet of Such Unrestricted Subsidiaries (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>77</Position>
    </Report>
    <Report instance="unit-20260331.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R78.htm</HtmlFileName>
      <LongName>9955566 - Disclosure - Supplementary Unrestricted Subsidiary Information - Schedule of Consolidating Statement of Income (Loss) of Such Unrestricted Subsidiaries (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.uniti.com/role/SupplementaryUnrestrictedSubsidiaryInformationScheduleofConsolidatingStatementofIncomeLossofSuchUnrestrictedSubsidiariesDetails</Role>
      <ShortName>Supplementary Unrestricted Subsidiary Information - Schedule of Consolidating Statement of Income (Loss) of Such Unrestricted Subsidiaries (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>78</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" isDefinitelyFs="true" isUsgaap="true" original="unit-20260331.htm">unit-20260331.htm</File>
    <File>unit-20260331.xsd</File>
    <File>unit-20260331_cal.xml</File>
    <File>unit-20260331_def.xml</File>
    <File>unit-20260331_lab.xml</File>
    <File>unit-20260331_pre.xml</File>
  </InputFiles>
  <SupplementalFiles/>
  <BaseTaxonomies>
    <BaseTaxonomy items="2">http://fasb.org/srt/2025</BaseTaxonomy>
    <BaseTaxonomy items="1441">http://fasb.org/us-gaap/2025</BaseTaxonomy>
    <BaseTaxonomy items="29">http://xbrl.sec.gov/dei/2025</BaseTaxonomy>
    <BaseTaxonomy items="4">http://xbrl.sec.gov/ecd/2025</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
