<?xml version='1.0' encoding='utf-8'?>
<FilingSummary>
  <Version>3.22.4</Version>
  <ProcessingTime/>
  <ReportFormat>html</ReportFormat>
  <ContextCount>655</ContextCount>
  <ElementCount>499</ElementCount>
  <EntityCount>1</EntityCount>
  <FootnotesReported>false</FootnotesReported>
  <SegmentCount>350</SegmentCount>
  <ScenarioCount>0</ScenarioCount>
  <TuplesReported>false</TuplesReported>
  <UnitCount>14</UnitCount>
  <MyReports>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R1.htm</HtmlFileName>
      <LongName>00090 - Document - Document and Entity Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DocumentDocumentAndEntityInformation</Role>
      <ShortName>Document and Entity Information</ShortName>
      <MenuCategory>Cover</MenuCategory>
      <Position>1</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R2.htm</HtmlFileName>
      <LongName>00100 - Statement - CONSOLIDATED BALANCE SHEETS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/StatementConsolidatedBalanceSheets</Role>
      <ShortName>CONSOLIDATED BALANCE SHEETS</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>2</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R3.htm</HtmlFileName>
      <LongName>00105 - Statement - CONSOLIDATED BALANCE SHEETS (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/StatementConsolidatedBalanceSheetsParenthetical</Role>
      <ShortName>CONSOLIDATED BALANCE SHEETS (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>3</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R4.htm</HtmlFileName>
      <LongName>00200 - Statement - CONSOLIDATED STATEMENTS OF INCOME</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/StatementConsolidatedStatementsOfIncome</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF INCOME</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>4</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R5.htm</HtmlFileName>
      <LongName>00300 - Statement - CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/StatementConsolidatedStatementsOfComprehensiveIncome</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>5</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R6.htm</HtmlFileName>
      <LongName>00400 - Statement - CONSOLIDATED STATEMENTS OF EQUITY</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/StatementConsolidatedStatementsOfEquity</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF EQUITY</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>6</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R7.htm</HtmlFileName>
      <LongName>00405 - Statement - CONSOLIDATED STATEMENTS OF EQUITY (Parenthetical)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/StatementConsolidatedStatementsOfEquityParenthetical</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF EQUITY (Parenthetical)</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>7</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R8.htm</HtmlFileName>
      <LongName>00500 - Statement - CONSOLIDATED STATEMENTS OF CASH FLOWS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/StatementConsolidatedStatementsOfCashFlows</Role>
      <ShortName>CONSOLIDATED STATEMENTS OF CASH FLOWS</ShortName>
      <MenuCategory>Statements</MenuCategory>
      <Position>8</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R9.htm</HtmlFileName>
      <LongName>10101 - Disclosure - The Company</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureCompany</Role>
      <ShortName>The Company</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>9</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R10.htm</HtmlFileName>
      <LongName>10201 - Disclosure - Summary of Significant Accounting Policies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureSummaryOfSignificantAccountingPolicies</Role>
      <ShortName>Summary of Significant Accounting Policies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>10</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R11.htm</HtmlFileName>
      <LongName>10301 - Disclosure - Major Operators</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureMajorOperators</Role>
      <ShortName>Major Operators</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>11</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R12.htm</HtmlFileName>
      <LongName>10401 - Disclosure - Supplemental Cash Flow Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureSupplementalCashFlowInformation</Role>
      <ShortName>Supplemental Cash Flow Information</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>12</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R13.htm</HtmlFileName>
      <LongName>10501 - Disclosure - Real Estate Investments</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureRealEstateInvestments</Role>
      <ShortName>Real Estate Investments</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>13</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R14.htm</HtmlFileName>
      <LongName>10601 - Disclosure - Investment in Unconsolidated Joint Ventures</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureInvestmentInUnconsolidatedJointVentures</Role>
      <ShortName>Investment in Unconsolidated Joint Ventures</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>14</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R15.htm</HtmlFileName>
      <LongName>10701 - Disclosure - Notes Receivable</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureNotesReceivable</Role>
      <ShortName>Notes Receivable</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>15</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R16.htm</HtmlFileName>
      <LongName>10801 - Disclosure - Lease Incentives</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureLeaseIncentives</Role>
      <ShortName>Lease Incentives</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>16</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R17.htm</HtmlFileName>
      <LongName>10901 - Disclosure - Debt Obligations</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureDebtObligations</Role>
      <ShortName>Debt Obligations</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>17</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R18.htm</HtmlFileName>
      <LongName>11001 - Disclosure - Equity</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureEquity</Role>
      <ShortName>Equity</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>18</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R19.htm</HtmlFileName>
      <LongName>11101 - Disclosure - Commitments and Contingencies</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureCommitmentsAndContingencies</Role>
      <ShortName>Commitments and Contingencies</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>19</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R20.htm</HtmlFileName>
      <LongName>11201 - Disclosure - Distributions</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureDistributions</Role>
      <ShortName>Distributions</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>20</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R21.htm</HtmlFileName>
      <LongName>11301 - Disclosure - Net Income Per Common Share</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureNetIncomePerCommonShare</Role>
      <ShortName>Net Income Per Common Share</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>21</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R22.htm</HtmlFileName>
      <LongName>11401 - Disclosure - Quarterly Financial Information</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureQuarterlyFinancialInformation</Role>
      <ShortName>Quarterly Financial Information</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>22</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R23.htm</HtmlFileName>
      <LongName>11501 - Disclosure - Fair Value Measurements</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureFairValueMeasurements</Role>
      <ShortName>Fair Value Measurements</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>23</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R24.htm</HtmlFileName>
      <LongName>11601 - Disclosure - Subsequent Events</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureSubsequentEvents</Role>
      <ShortName>Subsequent Events</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>24</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R25.htm</HtmlFileName>
      <LongName>11701 - Disclosure - SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureScheduleIiValuationAndQualifyingAccounts</Role>
      <ShortName>SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>25</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R26.htm</HtmlFileName>
      <LongName>11801 - Disclosure - SCHEDULE III REAL ESTATE AND ACCUMULATED DEPRECIATION</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureScheduleIiiRealEstateAndAccumulatedDepreciation</Role>
      <ShortName>SCHEDULE III REAL ESTATE AND ACCUMULATED DEPRECIATION</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>26</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R27.htm</HtmlFileName>
      <LongName>11901 - Disclosure - SCHEDULE IV MORTGAGE LOANS ON REAL ESTATE</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureScheduleIvMortgageLoansOnRealEstate</Role>
      <ShortName>SCHEDULE IV MORTGAGE LOANS ON REAL ESTATE</ShortName>
      <MenuCategory>Notes</MenuCategory>
      <Position>27</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R28.htm</HtmlFileName>
      <LongName>20202 - Disclosure - Summary of Significant Accounting Policies (Policies)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureSummaryOfSignificantAccountingPoliciesPolicies</Role>
      <ShortName>Summary of Significant Accounting Policies (Policies)</ShortName>
      <MenuCategory>Policies</MenuCategory>
      <ParentRole>http://www.ltcproperties.com/role/DisclosureSummaryOfSignificantAccountingPolicies</ParentRole>
      <Position>28</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R29.htm</HtmlFileName>
      <LongName>30303 - Disclosure - Major Operators (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureMajorOperatorsTables</Role>
      <ShortName>Major Operators (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.ltcproperties.com/role/DisclosureMajorOperators</ParentRole>
      <Position>29</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R30.htm</HtmlFileName>
      <LongName>30403 - Disclosure - Supplemental Cash Flow Information (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureSupplementalCashFlowInformationTables</Role>
      <ShortName>Supplemental Cash Flow Information (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.ltcproperties.com/role/DisclosureSupplementalCashFlowInformation</ParentRole>
      <Position>30</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R31.htm</HtmlFileName>
      <LongName>30503 - Disclosure - Real Estate Investments (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureRealEstateInvestmentsTables</Role>
      <ShortName>Real Estate Investments (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.ltcproperties.com/role/DisclosureRealEstateInvestments</ParentRole>
      <Position>31</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R32.htm</HtmlFileName>
      <LongName>30603 - Disclosure - Investment in Unconsolidated Joint Ventures (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureInvestmentInUnconsolidatedJointVenturesTables</Role>
      <ShortName>Investment in Unconsolidated Joint Ventures (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.ltcproperties.com/role/DisclosureInvestmentInUnconsolidatedJointVentures</ParentRole>
      <Position>32</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R33.htm</HtmlFileName>
      <LongName>30703 - Disclosure - Notes Receivable (Tables)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureNotesReceivableTables</Role>
      <ShortName>Notes Receivable (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.ltcproperties.com/role/DisclosureNotesReceivable</ParentRole>
      <Position>33</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R34.htm</HtmlFileName>
      <LongName>30803 - Disclosure - Lease Incentives (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureLeaseIncentivesTables</Role>
      <ShortName>Lease Incentives (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.ltcproperties.com/role/DisclosureLeaseIncentives</ParentRole>
      <Position>34</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R35.htm</HtmlFileName>
      <LongName>30903 - Disclosure - Debt Obligations (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureDebtObligationsTables</Role>
      <ShortName>Debt Obligations (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.ltcproperties.com/role/DisclosureDebtObligations</ParentRole>
      <Position>35</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R36.htm</HtmlFileName>
      <LongName>31003 - Disclosure - Equity (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureEquityTables</Role>
      <ShortName>Equity (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.ltcproperties.com/role/DisclosureEquity</ParentRole>
      <Position>36</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R37.htm</HtmlFileName>
      <LongName>31103 - Disclosure - Commitments and Contingencies (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureCommitmentsAndContingenciesTables</Role>
      <ShortName>Commitments and Contingencies (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.ltcproperties.com/role/DisclosureCommitmentsAndContingencies</ParentRole>
      <Position>37</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R38.htm</HtmlFileName>
      <LongName>31203 - Disclosure - Distributions (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureDistributionsTables</Role>
      <ShortName>Distributions (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.ltcproperties.com/role/DisclosureDistributions</ParentRole>
      <Position>38</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R39.htm</HtmlFileName>
      <LongName>31303 - Disclosure - Net Income Per Common Share (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureNetIncomePerCommonShareTables</Role>
      <ShortName>Net Income Per Common Share (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.ltcproperties.com/role/DisclosureNetIncomePerCommonShare</ParentRole>
      <Position>39</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R40.htm</HtmlFileName>
      <LongName>31403 - Disclosure - Quarterly Financial Information (Unaudited) (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureQuarterlyFinancialInformationUnauditedTables</Role>
      <ShortName>Quarterly Financial Information (Unaudited) (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.ltcproperties.com/role/DisclosureQuarterlyFinancialInformation</ParentRole>
      <Position>40</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R41.htm</HtmlFileName>
      <LongName>31503 - Disclosure - Fair Value Measurements (Tables)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureFairValueMeasurementsTables</Role>
      <ShortName>Fair Value Measurements (Tables)</ShortName>
      <MenuCategory>Tables</MenuCategory>
      <ParentRole>http://www.ltcproperties.com/role/DisclosureFairValueMeasurements</ParentRole>
      <Position>41</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R42.htm</HtmlFileName>
      <LongName>40101 - Disclosure - The Company (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureCompanyDetails</Role>
      <ShortName>The Company (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.ltcproperties.com/role/DisclosureCompany</ParentRole>
      <Position>42</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R43.htm</HtmlFileName>
      <LongName>40201 - Disclosure - Summary of Significant Accounting Policies - Owned Properties (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureSummaryOfSignificantAccountingPoliciesOwnedPropertiesDetails</Role>
      <ShortName>Summary of Significant Accounting Policies - Owned Properties (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>43</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R44.htm</HtmlFileName>
      <LongName>40202 - Disclosure - Summary of Significant Accounting Policies - Working Capital Loan (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureSummaryOfSignificantAccountingPoliciesWorkingCapitalLoanDetails</Role>
      <ShortName>Summary of Significant Accounting Policies - Working Capital Loan (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>44</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R45.htm</HtmlFileName>
      <LongName>40203 - Disclosure - Summary of Significant Accounting Policies - Mezzanine Loans and Impairments (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureSummaryOfSignificantAccountingPoliciesMezzanineLoansAndImpairmentsDetails</Role>
      <ShortName>Summary of Significant Accounting Policies - Mezzanine Loans and Impairments (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>45</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R46.htm</HtmlFileName>
      <LongName>40204 - Disclosure - Summary of Significant Accounting Policies - Derivative Instruments (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureSummaryOfSignificantAccountingPoliciesDerivativeInstrumentsDetails</Role>
      <ShortName>Summary of Significant Accounting Policies - Derivative Instruments (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>46</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R47.htm</HtmlFileName>
      <LongName>40205 - Disclosure - Summary of Significant Accounting Policies - Revenue Recognition (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureSummaryOfSignificantAccountingPoliciesRevenueRecognitionDetails</Role>
      <ShortName>Summary of Significant Accounting Policies - Revenue Recognition (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>47</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R48.htm</HtmlFileName>
      <LongName>40206 - Disclosure - Summary of Significant Accounting Policies - Taxes (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureSummaryOfSignificantAccountingPoliciesTaxesDetails</Role>
      <ShortName>Summary of Significant Accounting Policies - Taxes (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.ltcproperties.com/role/DisclosureSummaryOfSignificantAccountingPoliciesPolicies</ParentRole>
      <Position>48</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R49.htm</HtmlFileName>
      <LongName>40301 - Disclosure - Major Operators (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureMajorOperatorsDetails</Role>
      <ShortName>Major Operators (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.ltcproperties.com/role/DisclosureMajorOperatorsTables</ParentRole>
      <Position>49</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R50.htm</HtmlFileName>
      <LongName>40401 - Disclosure - Supplemental Cash Flow Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureSupplementalCashFlowInformationDetails</Role>
      <ShortName>Supplemental Cash Flow Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.ltcproperties.com/role/DisclosureSupplementalCashFlowInformationTables</ParentRole>
      <Position>50</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R51.htm</HtmlFileName>
      <LongName>40501 - Disclosure - Real Estate Investments - Owned Properties (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureRealEstateInvestmentsOwnedPropertiesDetails</Role>
      <ShortName>Real Estate Investments - Owned Properties (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>51</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R52.htm</HtmlFileName>
      <LongName>40502 - Disclosure - Real Estate Investments - Base Rents (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureRealEstateInvestmentsBaseRentsDetails</Role>
      <ShortName>Real Estate Investments - Base Rents (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>52</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R53.htm</HtmlFileName>
      <LongName>40503 - Disclosure - Real Estate Investments - Lease (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureRealEstateInvestmentsLeaseDetails</Role>
      <ShortName>Real Estate Investments - Lease (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>53</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R54.htm</HtmlFileName>
      <LongName>40504 - Disclosure - Real Estate Investments - Impairment Loss (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureRealEstateInvestmentsImpairmentLossDetails</Role>
      <ShortName>Real Estate Investments - Impairment Loss (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>54</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R55.htm</HtmlFileName>
      <LongName>40505 - Disclosure - Real Estate Investments - Held-For-Sale Properties (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureRealEstateInvestmentsHeldForSalePropertiesDetails</Role>
      <ShortName>Real Estate Investments - Held-For-Sale Properties (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>55</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R56.htm</HtmlFileName>
      <LongName>40506 - Disclosure - Real Estate Investments - Acquisitions (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureRealEstateInvestmentsAcquisitionsDetails</Role>
      <ShortName>Real Estate Investments - Acquisitions (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>56</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R57.htm</HtmlFileName>
      <LongName>40507 - Disclosure - Real Estate Investments - Developments and Improvements (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureRealEstateInvestmentsDevelopmentsAndImprovementsDetails</Role>
      <ShortName>Real Estate Investments - Developments and Improvements (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>57</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R58.htm</HtmlFileName>
      <LongName>40508 - Disclosure - Real Estate Investments - Completed Projects (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureRealEstateInvestmentsCompletedProjectsDetails</Role>
      <ShortName>Real Estate Investments - Completed Projects (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>58</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R59.htm</HtmlFileName>
      <LongName>40509 - Disclosure - Real Estate Investments - Properties Sales (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureRealEstateInvestmentsPropertiesSalesDetails</Role>
      <ShortName>Real Estate Investments - Properties Sales (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>59</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R60.htm</HtmlFileName>
      <LongName>40510 - Disclosure - Real Estate Investments - Financing Receivable (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureRealEstateInvestmentsFinancingReceivableDetails</Role>
      <ShortName>Real Estate Investments - Financing Receivable (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>60</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R61.htm</HtmlFileName>
      <LongName>40511 - Disclosure - Real Estate Investments - Mortgage Loan (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureRealEstateInvestmentsMortgageLoanDetails</Role>
      <ShortName>Real Estate Investments - Mortgage Loan (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>61</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R62.htm</HtmlFileName>
      <LongName>40512 - Disclosure - Real Estate Investments - Mortgage Loans Activity (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureRealEstateInvestmentsMortgageLoansActivityDetails</Role>
      <ShortName>Real Estate Investments - Mortgage Loans Activity (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>62</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R63.htm</HtmlFileName>
      <LongName>40513 - Disclosure - Real Estate Investments - Mortgage Loans - Scheduled Principal Payments (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureRealEstateInvestmentsMortgageLoansScheduledPrincipalPaymentsDetails</Role>
      <ShortName>Real Estate Investments - Mortgage Loans - Scheduled Principal Payments (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>63</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R64.htm</HtmlFileName>
      <LongName>40601 - Disclosure - Investment in Unconsolidated Joint Ventures - Investment (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureInvestmentInUnconsolidatedJointVenturesInvestmentDetails</Role>
      <ShortName>Investment in Unconsolidated Joint Ventures - Investment (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>64</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R65.htm</HtmlFileName>
      <LongName>40701 - Disclosure - Notes Receivable (Details)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureNotesReceivableDetails</Role>
      <ShortName>Notes Receivable (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.ltcproperties.com/role/DisclosureNotesReceivableTables</ParentRole>
      <Position>65</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R66.htm</HtmlFileName>
      <LongName>40702 - Disclosure - Notes Receivable - Components (Details)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureNotesReceivableComponentsDetails</Role>
      <ShortName>Notes Receivable - Components (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>66</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R67.htm</HtmlFileName>
      <LongName>40703 - Disclosure - Notes Receivable - Other Information (Details)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureNotesReceivableOtherInformationDetails</Role>
      <ShortName>Notes Receivable - Other Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>67</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R68.htm</HtmlFileName>
      <LongName>40704 - Disclosure - Notes Receivable - New Loan Commitment (Details)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureNotesReceivableNewLoanCommitmentDetails</Role>
      <ShortName>Notes Receivable - New Loan Commitment (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>68</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R69.htm</HtmlFileName>
      <LongName>40801 - Disclosure - Lease Incentives (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureLeaseIncentivesDetails</Role>
      <ShortName>Lease Incentives (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.ltcproperties.com/role/DisclosureLeaseIncentivesTables</ParentRole>
      <Position>69</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R70.htm</HtmlFileName>
      <LongName>40802 - Disclosure - Lease Incentives - Non-Contingent Lease Incentive Activity (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureLeaseIncentivesNonContingentLeaseIncentiveActivityDetails</Role>
      <ShortName>Lease Incentives - Non-Contingent Lease Incentive Activity (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>70</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R71.htm</HtmlFileName>
      <LongName>40901 - Disclosure - Debt Obligations - Bank Borrowings (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureDebtObligationsBankBorrowingsDetails</Role>
      <ShortName>Debt Obligations - Bank Borrowings (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>71</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R72.htm</HtmlFileName>
      <LongName>40902 - Disclosure - Debt Obligations - Interest Rate Swap Agreement (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureDebtObligationsInterestRateSwapAgreementDetails</Role>
      <ShortName>Debt Obligations - Interest Rate Swap Agreement (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>72</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R73.htm</HtmlFileName>
      <LongName>40903 - Disclosure - Debt Obligations - Senior Unsecured Notes (Details)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureDebtObligationsSeniorUnsecuredNotesDetails</Role>
      <ShortName>Debt Obligations - Senior Unsecured Notes (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>73</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R74.htm</HtmlFileName>
      <LongName>40904 - Disclosure - Debt Obligations - Component (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureDebtObligationsComponentDetails</Role>
      <ShortName>Debt Obligations - Component (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>74</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R75.htm</HtmlFileName>
      <LongName>40905 - Disclosure - Debt Obligations - Borrowings and Repayments (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureDebtObligationsBorrowingsAndRepaymentsDetails</Role>
      <ShortName>Debt Obligations - Borrowings and Repayments (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>75</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R76.htm</HtmlFileName>
      <LongName>40906 - Disclosure - Debt Obligations - Future Maturities (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureDebtObligationsFutureMaturitiesDetails</Role>
      <ShortName>Debt Obligations - Future Maturities (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>76</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R77.htm</HtmlFileName>
      <LongName>41001 - Disclosure - Equity - Noncontrolling Interest (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureEquityNoncontrollingInterestDetails</Role>
      <ShortName>Equity - Noncontrolling Interest (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>77</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R78.htm</HtmlFileName>
      <LongName>41002 - Disclosure - Equity - Class of Stock Disclosures - Common Stock (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureEquityClassOfStockDisclosuresCommonStockDetails</Role>
      <ShortName>Equity - Class of Stock Disclosures - Common Stock (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>78</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R79.htm</HtmlFileName>
      <LongName>41003 - Disclosure - Equity - Stock Repurchase Plan (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureEquityStockRepurchasePlanDetails</Role>
      <ShortName>Equity - Stock Repurchase Plan (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>79</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R80.htm</HtmlFileName>
      <LongName>41004 - Disclosure - Equity - Distributions (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureEquityDistributionsDetails</Role>
      <ShortName>Equity - Distributions (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>80</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R81.htm</HtmlFileName>
      <LongName>41005 - Disclosure - Equity - Stock-Based Compensation plans (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureEquityStockBasedCompensationPlansDetails</Role>
      <ShortName>Equity - Stock-Based Compensation plans (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>81</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R82.htm</HtmlFileName>
      <LongName>41006 - Disclosure - Equity - Restricted Stock and performance-based stock units (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureEquityRestrictedStockAndPerformanceBasedStockUnitsDetails</Role>
      <ShortName>Equity - Restricted Stock and performance-based stock units (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>82</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R83.htm</HtmlFileName>
      <LongName>41007 - Disclosure - Equity - Options (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureEquityOptionsDetails</Role>
      <ShortName>Equity - Options (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>83</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R84.htm</HtmlFileName>
      <LongName>41101 - Disclosure - Commitments and Contingencies - Summary of Commitments (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureCommitmentsAndContingenciesSummaryOfCommitmentsDetails</Role>
      <ShortName>Commitments and Contingencies - Summary of Commitments (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>84</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R85.htm</HtmlFileName>
      <LongName>41201 - Disclosure - Distributions (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureDistributionsDetails</Role>
      <ShortName>Distributions (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.ltcproperties.com/role/DisclosureDistributionsTables</ParentRole>
      <Position>85</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R86.htm</HtmlFileName>
      <LongName>41301 - Disclosure - Net Income Per Common Share (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureNetIncomePerCommonShareDetails</Role>
      <ShortName>Net Income Per Common Share (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.ltcproperties.com/role/DisclosureNetIncomePerCommonShareTables</ParentRole>
      <Position>86</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R87.htm</HtmlFileName>
      <LongName>41401 - Disclosure - Quarterly Financial Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureQuarterlyFinancialInformationDetails</Role>
      <ShortName>Quarterly Financial Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.ltcproperties.com/role/DisclosureQuarterlyFinancialInformationUnauditedTables</ParentRole>
      <Position>87</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R88.htm</HtmlFileName>
      <LongName>41501 - Disclosure - Fair Value Measurements (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureFairValueMeasurementsDetails</Role>
      <ShortName>Fair Value Measurements (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.ltcproperties.com/role/DisclosureFairValueMeasurementsTables</ParentRole>
      <Position>88</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R89.htm</HtmlFileName>
      <LongName>41601 - Disclosure - Subsequent Events - Lease Renewals (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureSubsequentEventsLeaseRenewalsDetails</Role>
      <ShortName>Subsequent Events - Lease Renewals (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>89</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R90.htm</HtmlFileName>
      <LongName>41602 - Disclosure - Subsequent Events - Financing Receivable (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureSubsequentEventsFinancingReceivableDetails</Role>
      <ShortName>Subsequent Events - Financing Receivable (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>90</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R91.htm</HtmlFileName>
      <LongName>41603 - Disclosure - Subsequent Events - Mortgage Loans (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureSubsequentEventsMortgageLoansDetails</Role>
      <ShortName>Subsequent Events - Mortgage Loans (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>91</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R92.htm</HtmlFileName>
      <LongName>41604 - Disclosure - Subsequent Events - Notes Receivable (Details)</LongName>
      <ReportType>Notes</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureSubsequentEventsNotesReceivableDetails</Role>
      <ShortName>Subsequent Events - Notes Receivable (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>92</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R93.htm</HtmlFileName>
      <LongName>41605 - Disclosure - Subsequent Events - Unconsolidated Joint Ventures (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureSubsequentEventsUnconsolidatedJointVenturesDetails</Role>
      <ShortName>Subsequent Events - Unconsolidated Joint Ventures (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>93</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R94.htm</HtmlFileName>
      <LongName>41606 - Disclosure - Subsequent Events - Debt Obligations (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureSubsequentEventsDebtObligationsDetails</Role>
      <ShortName>Subsequent Events - Debt Obligations (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>94</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R95.htm</HtmlFileName>
      <LongName>41607 - Disclosure - Subsequent Events - Equity (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureSubsequentEventsEquityDetails</Role>
      <ShortName>Subsequent Events - Equity (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>95</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R96.htm</HtmlFileName>
      <LongName>41701 - Disclosure - SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureScheduleIiValuationAndQualifyingAccountsDetails</Role>
      <ShortName>SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.ltcproperties.com/role/DisclosureScheduleIiValuationAndQualifyingAccounts</ParentRole>
      <Position>96</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R97.htm</HtmlFileName>
      <LongName>41801 - Disclosure - SCHEDULE III REAL ESTATE AND ACCUMULATED DEPRECIATION - By Property (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureScheduleIiiRealEstateAndAccumulatedDepreciationByPropertyDetails</Role>
      <ShortName>SCHEDULE III REAL ESTATE AND ACCUMULATED DEPRECIATION - By Property (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>97</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R98.htm</HtmlFileName>
      <LongName>41802 - Disclosure - SCHEDULE III REAL ESTATE AND ACCUMULATED DEPRECIATION - Additional Information (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureScheduleIiiRealEstateAndAccumulatedDepreciationAdditionalInformationDetails</Role>
      <ShortName>SCHEDULE III REAL ESTATE AND ACCUMULATED DEPRECIATION - Additional Information (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>98</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R99.htm</HtmlFileName>
      <LongName>41803 - Disclosure - SCHEDULE III REAL ESTATE AND ACCUMULATED DEPRECIATION - Summary (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureScheduleIiiRealEstateAndAccumulatedDepreciationSummaryDetails</Role>
      <ShortName>SCHEDULE III REAL ESTATE AND ACCUMULATED DEPRECIATION - Summary (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.ltcproperties.com/role/DisclosureScheduleIiiRealEstateAndAccumulatedDepreciation</ParentRole>
      <Position>99</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R100.htm</HtmlFileName>
      <LongName>41901 - Disclosure - SCHEDULE IV MORTGAGE LOANS ON REAL ESTATE - Summary (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureScheduleIvMortgageLoansOnRealEstateSummaryDetails</Role>
      <ShortName>SCHEDULE IV MORTGAGE LOANS ON REAL ESTATE - Summary (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <ParentRole>http://www.ltcproperties.com/role/DisclosureScheduleIvMortgageLoansOnRealEstate</ParentRole>
      <Position>100</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R101.htm</HtmlFileName>
      <LongName>41902 - Disclosure - SCHEDULE IV MORTGAGE LOANS ON REAL ESTATE - Number of Loans (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureScheduleIvMortgageLoansOnRealEstateNumberOfLoansDetails</Role>
      <ShortName>SCHEDULE IV MORTGAGE LOANS ON REAL ESTATE - Number of Loans (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>101</Position>
    </Report>
    <Report instance="ltc-20221231x10k.htm">
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <HtmlFileName>R102.htm</HtmlFileName>
      <LongName>41903 - Disclosure - SCHEDULE IV MORTGAGE LOANS ON REAL ESTATE - Rollforward (Details)</LongName>
      <ReportType>Sheet</ReportType>
      <Role>http://www.ltcproperties.com/role/DisclosureScheduleIvMortgageLoansOnRealEstateRollforwardDetails</Role>
      <ShortName>SCHEDULE IV MORTGAGE LOANS ON REAL ESTATE - Rollforward (Details)</ShortName>
      <MenuCategory>Details</MenuCategory>
      <Position>102</Position>
    </Report>
    <Report>
      <IsDefault>false</IsDefault>
      <HasEmbeddedReports>false</HasEmbeddedReports>
      <LongName>All Reports</LongName>
      <ReportType>Book</ReportType>
      <ShortName>All Reports</ShortName>
    </Report>
  </MyReports>
  <Logs>
    <Log type="Warning">[ix-0514-Hidden-Fact-Eligible-For-Transform] WARN: 25 fact(s) appearing in ix:hidden were eligible for transformation: dei:CurrentFiscalYearEndDate, ltc:MortgageLoansOnRealEstateAmortizationPeriod, us-gaap:CommonStockDividendsPerShareDeclared, us-gaap:CommonStockSharesIssued, us-gaap:CommonStockSharesOutstanding, us-gaap:DebtInstrumentTerm, us-gaap:LessorOperatingLeaseTermOfContract, us-gaap:LessorSalesTypeLeaseRenewalTerm1, us-gaap:PropertyPlantAndEquipmentUsefulLife -  ltc-20221231x10k.htm 9</Log>
  </Logs>
  <InputFiles>
    <File doctype="10-K" original="ltc-20221231x10k.htm">ltc-20221231x10k.htm</File>
    <File>ltc-20221231.xsd</File>
    <File>ltc-20221231_cal.xml</File>
    <File>ltc-20221231_def.xml</File>
    <File>ltc-20221231_lab.xml</File>
    <File>ltc-20221231_pre.xml</File>
    <File>ltc-20221231xex21.htm</File>
    <File>ltc-20221231xex23d1.htm</File>
    <File>ltc-20221231xex31d1.htm</File>
    <File>ltc-20221231xex31d2.htm</File>
    <File>ltc-20221231xex32.htm</File>
  </InputFiles>
  <SupplementalFiles>
    <File>ltc-20221231x10k001.jpg</File>
    <File>ltc-20221231x10k008.jpg</File>
    <File>ltc-20221231x10k011.jpg</File>
    <File>ltc-20221231x10k012.jpg</File>
  </SupplementalFiles>
  <BaseTaxonomies>
    <BaseTaxonomy items="139">http://fasb.org/srt/2022</BaseTaxonomy>
    <BaseTaxonomy items="2208">http://fasb.org/us-gaap/2022</BaseTaxonomy>
    <BaseTaxonomy items="36">http://xbrl.sec.gov/dei/2022</BaseTaxonomy>
  </BaseTaxonomies>
  <HasPresentationLinkbase>true</HasPresentationLinkbase>
  <HasCalculationLinkbase>true</HasCalculationLinkbase>
</FilingSummary>
