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Real Estate Investments (Details 4) (USD $)
3 Months Ended 12 Months Ended
Mar. 31, 2015
Mar. 31, 2014
Dec. 31, 2013
item
property
Mortgage Loans      
Scheduled principal payments received $ 2,786,000us-gaap_ProceedsFromSaleAndCollectionOfMortgageNotesReceivable $ 519,000us-gaap_ProceedsFromSaleAndCollectionOfMortgageNotesReceivable  
Amount Funded 13,831,000ltc_InvestmentCommitmentsAmountFundedDuringPeriod    
Amount funded under loan 892,000ltc_LoanCommitmentsPrincipalAdvanced    
Loan commitment 4,288,000ltc_LoanCommitments    
Remaining loan commitments 1,954,000ltc_LoanCommitmentsOpen    
Investment Commitments. 90,643,000ltc_InvestmentCommitments    
Remaining Commitment 69,944,000ltc_InvestmentCommitmentsRemainingAmount    
Commitments funded 20,699,000ltc_InvestmentCommitmentsTotalAmountFunded    
Real Estate Investment [Member]      
Mortgage Loans      
Gross Investments 983,585,000us-gaap_RealEstateInvestmentPropertyAtCost
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
   
Percentage of Investments 100.00%ltc_RealEstateInvestmentsPercentage
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
   
Number of Properties 162us-gaap_NumberOfRealEstateProperties
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
   
Number of states 27ltc_RealEstateInvestmentsNumberOfStates
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
   
Number of operators 29ltc_RealEstateInvestmentsNumberOfOperatorsInStates
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
   
Amount Funded 11,081,000ltc_InvestmentCommitmentsAmountFundedDuringPeriod
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
   
Investment Commitments. 52,365,000ltc_InvestmentCommitments
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
   
Remaining Commitment 39,196,000ltc_InvestmentCommitmentsRemainingAmount
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
   
Commitments funded 13,169,000ltc_InvestmentCommitmentsTotalAmountFunded
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
   
Mortgage Loans on Real Estate [Member]      
Mortgage Loans      
Gross Investments 165,300,000us-gaap_RealEstateInvestmentPropertyAtCost
/ us-gaap_InvestmentTypeAxis
= us-gaap_MortgageLoansOnRealEstateMember
   
Percentage of Investments 100.00%ltc_RealEstateInvestmentsPercentage
/ us-gaap_InvestmentTypeAxis
= us-gaap_MortgageLoansOnRealEstateMember
   
Number of Loans 18us-gaap_MortgageLoansOnRealEstateNumberOfLoans
/ us-gaap_InvestmentTypeAxis
= us-gaap_MortgageLoansOnRealEstateMember
   
Number of Properties 37us-gaap_NumberOfRealEstateProperties
/ us-gaap_InvestmentTypeAxis
= us-gaap_MortgageLoansOnRealEstateMember
   
Number of states 7ltc_RealEstateInvestmentsNumberOfStates
/ us-gaap_InvestmentTypeAxis
= us-gaap_MortgageLoansOnRealEstateMember
   
Number of operators 10ltc_RealEstateInvestmentsNumberOfOperatorsInStates
/ us-gaap_InvestmentTypeAxis
= us-gaap_MortgageLoansOnRealEstateMember
   
Interest rate for mortgage loans, low end of range (as a percent) 7.10%us-gaap_MortgageLoansOnRealEstateMinimumInterestRateInRange
/ us-gaap_InvestmentTypeAxis
= us-gaap_MortgageLoansOnRealEstateMember
   
Interest rate for mortgage loans, high end of range (as a percent) 13.90%us-gaap_MortgageLoansOnRealEstateMaximumInterestRateInRange
/ us-gaap_InvestmentTypeAxis
= us-gaap_MortgageLoansOnRealEstateMember
   
Scheduled principal payments received 501,000us-gaap_ProceedsFromSaleAndCollectionOfMortgageNotesReceivable
/ us-gaap_InvestmentTypeAxis
= us-gaap_MortgageLoansOnRealEstateMember
519,000us-gaap_ProceedsFromSaleAndCollectionOfMortgageNotesReceivable
/ us-gaap_InvestmentTypeAxis
= us-gaap_MortgageLoansOnRealEstateMember
 
Loan commitment     176,387,000ltc_LoanCommitments
/ us-gaap_InvestmentTypeAxis
= us-gaap_MortgageLoansOnRealEstateMember
Forward commitments for capital improvements     12,000,000ltc_MortgageLoansOnRealEstateCapitalImprovementForwardCommitments
/ us-gaap_InvestmentTypeAxis
= us-gaap_MortgageLoansOnRealEstateMember
Additional loan proceeds committed 40,000,000ltc_MortgageLoansOnRealEstateAdditionalLoanProceedsCommitted
/ us-gaap_InvestmentTypeAxis
= us-gaap_MortgageLoansOnRealEstateMember
  40,000,000ltc_MortgageLoansOnRealEstateAdditionalLoanProceedsCommitted
/ us-gaap_InvestmentTypeAxis
= us-gaap_MortgageLoansOnRealEstateMember
Additional loan proceeds available annually 10,000,000ltc_MortgageLoansOnRealEstateOtherAdditionsAnnualProceedsAvailable
/ us-gaap_InvestmentTypeAxis
= us-gaap_MortgageLoansOnRealEstateMember
   
Period additional loan proceeds are limited to $10M 12 months    
Mortgage Loans on Real Estate [Member] | Minimum [Member]      
Mortgage Loans      
General amortization schedule of mortgage loans 20 years    
Specified basis points for annual increase in interest rate (as a percent) 0.10%ltc_MortgageLoansOnRealEstateInterestRateAnnualIncreaseSpecifiedBasisPoints
/ us-gaap_InvestmentTypeAxis
= us-gaap_MortgageLoansOnRealEstateMember
/ us-gaap_RangeAxis
= us-gaap_MinimumMember
   
Mortgage Loans on Real Estate [Member] | Maximum [Member]      
Mortgage Loans      
General amortization schedule of mortgage loans 30 years    
Specified basis points for annual increase in interest rate (as a percent) 0.25%ltc_MortgageLoansOnRealEstateInterestRateAnnualIncreaseSpecifiedBasisPoints
/ us-gaap_InvestmentTypeAxis
= us-gaap_MortgageLoansOnRealEstateMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
   
Mortgage Loans on Real Estate [Member] | Prestige Healthcare [Member]      
Mortgage Loans      
Loan commitment 196,387,000ltc_LoanCommitments
/ us-gaap_InvestmentTypeAxis
= us-gaap_MortgageLoansOnRealEstateMember
/ ltc_MajorOperatorsAxis
= ltc_PrestigeHealthcareMember
   
Number of properties securing loan 2ltc_NumberOfRealEstatePropertiesSecuringMortgageLoan
/ us-gaap_InvestmentTypeAxis
= us-gaap_MortgageLoansOnRealEstateMember
/ ltc_MajorOperatorsAxis
= ltc_PrestigeHealthcareMember
   
Number of parcels of land 2ltc_NumberOfParcelsOfLand
/ us-gaap_InvestmentTypeAxis
= us-gaap_MortgageLoansOnRealEstateMember
/ ltc_MajorOperatorsAxis
= ltc_PrestigeHealthcareMember
   
Mortgage Loans on Real Estate [Member] | Prestige Healthcare [Member] | Maximum [Member]      
Mortgage Loans      
Percentage of outstanding mortgage loan balance that may be prepaid without penalty 50.00%ltc_PercentageOfOutstandingMortgageLoanThatMayBePrepaidWithoutPenalty
/ us-gaap_InvestmentTypeAxis
= us-gaap_MortgageLoansOnRealEstateMember
/ ltc_MajorOperatorsAxis
= ltc_PrestigeHealthcareMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
   
Additional loan proceeds available for expansion and renovation 20,000,000ltc_AdditionalLoanProceedsAvailableForExpansionAndRenovation
/ us-gaap_InvestmentTypeAxis
= us-gaap_MortgageLoansOnRealEstateMember
/ ltc_MajorOperatorsAxis
= ltc_PrestigeHealthcareMember
/ us-gaap_RangeAxis
= us-gaap_MaximumMember
   
Mortgage and Construction Loans on Real Estate [Member] | Wisconsin      
Mortgage Loans      
Number of beds or units securing loan 106ltc_NumberOfBedsOrUnitsSecuringMortgageLoan
/ dei_EntityByLocationAxis
= stpr_WI
/ us-gaap_InvestmentTypeAxis
= ltc_MortgageAndConstructionLoansOnRealEstateMember
   
Loan commitment under which the purchase option was exercised 10,600,000ltc_LoanCommitmentUnderWhichPurchaseOptionWasExercised
/ dei_EntityByLocationAxis
= stpr_WI
/ us-gaap_InvestmentTypeAxis
= ltc_MortgageAndConstructionLoansOnRealEstateMember
   
Capital Improvement Loan Investment [Member]      
Mortgage Loans      
Amount Funded 1,858,000ltc_InvestmentCommitmentsAmountFundedDuringPeriod
/ us-gaap_InvestmentTypeAxis
= ltc_CapitalImprovementLoanInvestmentMember
   
Loan commitment 12,000,000ltc_LoanCommitments
/ us-gaap_InvestmentTypeAxis
= ltc_CapitalImprovementLoanInvestmentMember
   
Capital Improvement Loan Investment [Member] | Prestige Healthcare [Member]      
Mortgage Loans      
Remaining loan commitments 6,804,000ltc_LoanCommitmentsOpen
/ us-gaap_InvestmentTypeAxis
= ltc_CapitalImprovementLoanInvestmentMember
/ ltc_MajorOperatorsAxis
= ltc_PrestigeHealthcareMember
   
Capital Improvement Loan Investment Two [Member] | Prestige Healthcare [Member]      
Mortgage Loans      
Loan commitment 32,000,000ltc_LoanCommitments
/ us-gaap_InvestmentTypeAxis
= ltc_CapitalImprovementLoanInvestmentTwoMember
/ ltc_MajorOperatorsAxis
= ltc_PrestigeHealthcareMember
   
Skilled Nursing Facility Beds [Member] | Real Estate Investment [Member]      
Mortgage Loans      
Number of Beds/Units 9,147us-gaap_NumberOfUnitsInRealEstateProperty
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ ltc_RealEstateUnitsByTypeAxis
= ltc_SkilledNursingFacilityBedsMember
   
Skilled Nursing Facility Beds [Member] | Mortgage Loans on Real Estate [Member]      
Mortgage Loans      
Number of Beds/Units 3,701us-gaap_NumberOfUnitsInRealEstateProperty
/ us-gaap_InvestmentTypeAxis
= us-gaap_MortgageLoansOnRealEstateMember
/ ltc_RealEstateUnitsByTypeAxis
= ltc_SkilledNursingFacilityBedsMember
   
Assisted Living Facility Units [Member] | Real Estate Investment [Member]      
Mortgage Loans      
Number of Beds/Units 4,510us-gaap_NumberOfUnitsInRealEstateProperty
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ ltc_RealEstateUnitsByTypeAxis
= ltc_AssistedLivingFacilityUnitsMember
   
Assisted Living Facility Units [Member] | Mortgage Loans on Real Estate [Member]      
Mortgage Loans      
Number of Beds/Units 270us-gaap_NumberOfUnitsInRealEstateProperty
/ us-gaap_InvestmentTypeAxis
= us-gaap_MortgageLoansOnRealEstateMember
/ ltc_RealEstateUnitsByTypeAxis
= ltc_AssistedLivingFacilityUnitsMember
   
Skilled Nursing Properties [Member] | Real Estate Investment [Member]      
Mortgage Loans      
Gross Investments 499,580,000us-gaap_RealEstateInvestmentPropertyAtCost
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis
= ltc_SkilledNursingPropertiesMember
   
Percentage of Investments 50.80%ltc_RealEstateInvestmentsPercentage
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis
= ltc_SkilledNursingPropertiesMember
   
Number of Properties 69us-gaap_NumberOfRealEstateProperties
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis
= ltc_SkilledNursingPropertiesMember
   
Investment per Bed/Unit 58.68ltc_RealEstateInvestmentsPerUnit
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis
= ltc_SkilledNursingPropertiesMember
   
Amount Funded 25,000ltc_InvestmentCommitmentsAmountFundedDuringPeriod
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis
= ltc_SkilledNursingPropertiesMember
   
Investment Commitments. 6,600,000ltc_InvestmentCommitments
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis
= ltc_SkilledNursingPropertiesMember
   
Remaining Commitment 6,575,000ltc_InvestmentCommitmentsRemainingAmount
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis
= ltc_SkilledNursingPropertiesMember
   
Commitments funded 25,000ltc_InvestmentCommitmentsTotalAmountFunded
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis
= ltc_SkilledNursingPropertiesMember
   
Skilled Nursing Properties [Member] | Real Estate Investment [Member] | Wisconsin      
Mortgage Loans      
Purchase Price 13,946,000us-gaap_BusinessCombinationConsiderationTransferred1
/ dei_EntityByLocationAxis
= stpr_WI
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis
= ltc_SkilledNursingPropertiesMember
   
Skilled Nursing Properties [Member] | Mortgage Loans on Real Estate [Member]      
Mortgage Loans      
Gross Investments 151,352,000us-gaap_RealEstateInvestmentPropertyAtCost
/ us-gaap_InvestmentTypeAxis
= us-gaap_MortgageLoansOnRealEstateMember
/ us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis
= ltc_SkilledNursingPropertiesMember
   
Percentage of Investments 91.60%ltc_RealEstateInvestmentsPercentage
/ us-gaap_InvestmentTypeAxis
= us-gaap_MortgageLoansOnRealEstateMember
/ us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis
= ltc_SkilledNursingPropertiesMember
   
Number of Loans 15us-gaap_MortgageLoansOnRealEstateNumberOfLoans
/ us-gaap_InvestmentTypeAxis
= us-gaap_MortgageLoansOnRealEstateMember
/ us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis
= ltc_SkilledNursingPropertiesMember
   
Number of Properties 29us-gaap_NumberOfRealEstateProperties
/ us-gaap_InvestmentTypeAxis
= us-gaap_MortgageLoansOnRealEstateMember
/ us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis
= ltc_SkilledNursingPropertiesMember
   
Investment per Bed/Unit 40.89ltc_RealEstateInvestmentsPerUnit
/ us-gaap_InvestmentTypeAxis
= us-gaap_MortgageLoansOnRealEstateMember
/ us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis
= ltc_SkilledNursingPropertiesMember
   
Skilled Nursing Properties [Member] | Mortgage Loans on Real Estate [Member] | Michigan      
Mortgage Loans      
Amount funded under loan     124,387,000ltc_LoanCommitmentsPrincipalAdvanced
/ dei_EntityByLocationAxis
= stpr_MI
/ us-gaap_InvestmentTypeAxis
= us-gaap_MortgageLoansOnRealEstateMember
/ us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis
= ltc_SkilledNursingPropertiesMember
Number of properties securing loan 15ltc_NumberOfRealEstatePropertiesSecuringMortgageLoan
/ dei_EntityByLocationAxis
= stpr_MI
/ us-gaap_InvestmentTypeAxis
= us-gaap_MortgageLoansOnRealEstateMember
/ us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis
= ltc_SkilledNursingPropertiesMember
  15ltc_NumberOfRealEstatePropertiesSecuringMortgageLoan
/ dei_EntityByLocationAxis
= stpr_MI
/ us-gaap_InvestmentTypeAxis
= us-gaap_MortgageLoansOnRealEstateMember
/ us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis
= ltc_SkilledNursingPropertiesMember
Number of beds or units securing loan     2,058ltc_NumberOfBedsOrUnitsSecuringMortgageLoan
/ dei_EntityByLocationAxis
= stpr_MI
/ us-gaap_InvestmentTypeAxis
= us-gaap_MortgageLoansOnRealEstateMember
/ us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis
= ltc_SkilledNursingPropertiesMember
Skilled Nursing Properties [Member] | Mortgage Loans on Real Estate [Member] | Prestige Healthcare [Member] | Michigan      
Mortgage Loans      
Amount Funded 9,500,000ltc_InvestmentCommitmentsAmountFundedDuringPeriod
/ dei_EntityByLocationAxis
= stpr_MI
/ us-gaap_InvestmentTypeAxis
= us-gaap_MortgageLoansOnRealEstateMember
/ ltc_MajorOperatorsAxis
= ltc_PrestigeHealthcareMember
/ us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis
= ltc_SkilledNursingPropertiesMember
   
Loan commitment 11,000,000ltc_LoanCommitments
/ dei_EntityByLocationAxis
= stpr_MI
/ us-gaap_InvestmentTypeAxis
= us-gaap_MortgageLoansOnRealEstateMember
/ ltc_MajorOperatorsAxis
= ltc_PrestigeHealthcareMember
/ us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis
= ltc_SkilledNursingPropertiesMember
   
Number of beds or units securing loan 157ltc_NumberOfBedsOrUnitsSecuringMortgageLoan
/ dei_EntityByLocationAxis
= stpr_MI
/ us-gaap_InvestmentTypeAxis
= us-gaap_MortgageLoansOnRealEstateMember
/ ltc_MajorOperatorsAxis
= ltc_PrestigeHealthcareMember
/ us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis
= ltc_SkilledNursingPropertiesMember
   
Interest rate for first five years 9.41%ltc_MortgageLoansOnRealEstateInterestRateFirstFiveYears
/ dei_EntityByLocationAxis
= stpr_MI
/ us-gaap_InvestmentTypeAxis
= us-gaap_MortgageLoansOnRealEstateMember
/ ltc_MajorOperatorsAxis
= ltc_PrestigeHealthcareMember
/ us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis
= ltc_SkilledNursingPropertiesMember
   
Period during which loan bears the initial specified interest rate 5 years    
Annual increase in interest rate (as percent) 2.25%ltc_MortgageLoansOnRealEstateAnnualInterestRateIncrease
/ dei_EntityByLocationAxis
= stpr_MI
/ us-gaap_InvestmentTypeAxis
= us-gaap_MortgageLoansOnRealEstateMember
/ ltc_MajorOperatorsAxis
= ltc_PrestigeHealthcareMember
/ us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis
= ltc_SkilledNursingPropertiesMember
   
Term of mortgage loan receivable 30 years    
Period of interest-only payments 3 years    
Skilled Nursing Properties [Member] | Mortgage and Construction Loans on Real Estate [Member] | Wisconsin      
Mortgage Loans      
Loan commitment under which the purchase option was exercised 10,600,000ltc_LoanCommitmentUnderWhichPurchaseOptionWasExercised
/ dei_EntityByLocationAxis
= stpr_WI
/ us-gaap_InvestmentTypeAxis
= ltc_MortgageAndConstructionLoansOnRealEstateMember
/ us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis
= ltc_SkilledNursingPropertiesMember
   
Skilled Nursing Properties [Member] | Skilled Nursing Facility Beds [Member] | Real Estate Investment [Member]      
Mortgage Loans      
Number of Beds/Units 8,513us-gaap_NumberOfUnitsInRealEstateProperty
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis
= ltc_SkilledNursingPropertiesMember
/ ltc_RealEstateUnitsByTypeAxis
= ltc_SkilledNursingFacilityBedsMember
   
Skilled Nursing Properties [Member] | Skilled Nursing Facility Beds [Member] | Mortgage Loans on Real Estate [Member]      
Mortgage Loans      
Number of Beds/Units 3,701us-gaap_NumberOfUnitsInRealEstateProperty
/ us-gaap_InvestmentTypeAxis
= us-gaap_MortgageLoansOnRealEstateMember
/ us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis
= ltc_SkilledNursingPropertiesMember
/ ltc_RealEstateUnitsByTypeAxis
= ltc_SkilledNursingFacilityBedsMember
   
Assisted Living Properties [Member] | Real Estate Investment [Member]      
Mortgage Loans      
Gross Investments 416,079,000us-gaap_RealEstateInvestmentPropertyAtCost
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis
= ltc_AssistedLivingPropertiesMember
   
Percentage of Investments 42.30%ltc_RealEstateInvestmentsPercentage
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis
= ltc_AssistedLivingPropertiesMember
   
Number of Properties 85us-gaap_NumberOfRealEstateProperties
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis
= ltc_AssistedLivingPropertiesMember
   
Investment per Bed/Unit 98.22ltc_RealEstateInvestmentsPerUnit
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis
= ltc_AssistedLivingPropertiesMember
   
Amount Funded 11,056,000ltc_InvestmentCommitmentsAmountFundedDuringPeriod
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis
= ltc_AssistedLivingPropertiesMember
   
Investment Commitments. 45,765,000ltc_InvestmentCommitments
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis
= ltc_AssistedLivingPropertiesMember
   
Remaining Commitment 32,621,000ltc_InvestmentCommitmentsRemainingAmount
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis
= ltc_AssistedLivingPropertiesMember
   
Commitments funded 13,144,000ltc_InvestmentCommitmentsTotalAmountFunded
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis
= ltc_AssistedLivingPropertiesMember
   
Assisted Living Properties [Member] | Mortgage Loans on Real Estate [Member]      
Mortgage Loans      
Gross Investments 13,948,000us-gaap_RealEstateInvestmentPropertyAtCost
/ us-gaap_InvestmentTypeAxis
= us-gaap_MortgageLoansOnRealEstateMember
/ us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis
= ltc_AssistedLivingPropertiesMember
   
Percentage of Investments 8.40%ltc_RealEstateInvestmentsPercentage
/ us-gaap_InvestmentTypeAxis
= us-gaap_MortgageLoansOnRealEstateMember
/ us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis
= ltc_AssistedLivingPropertiesMember
   
Number of Loans 3us-gaap_MortgageLoansOnRealEstateNumberOfLoans
/ us-gaap_InvestmentTypeAxis
= us-gaap_MortgageLoansOnRealEstateMember
/ us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis
= ltc_AssistedLivingPropertiesMember
   
Number of Properties 8us-gaap_NumberOfRealEstateProperties
/ us-gaap_InvestmentTypeAxis
= us-gaap_MortgageLoansOnRealEstateMember
/ us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis
= ltc_AssistedLivingPropertiesMember
   
Investment per Bed/Unit 51.66ltc_RealEstateInvestmentsPerUnit
/ us-gaap_InvestmentTypeAxis
= us-gaap_MortgageLoansOnRealEstateMember
/ us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis
= ltc_AssistedLivingPropertiesMember
   
Assisted Living Properties [Member] | Assisted Living Facility Units [Member] | Real Estate Investment [Member]      
Mortgage Loans      
Number of Beds/Units 4,236us-gaap_NumberOfUnitsInRealEstateProperty
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis
= ltc_AssistedLivingPropertiesMember
/ ltc_RealEstateUnitsByTypeAxis
= ltc_AssistedLivingFacilityUnitsMember
   
Assisted Living Properties [Member] | Assisted Living Facility Units [Member] | Mortgage Loans on Real Estate [Member]      
Mortgage Loans      
Number of Beds/Units 270us-gaap_NumberOfUnitsInRealEstateProperty
/ us-gaap_InvestmentTypeAxis
= us-gaap_MortgageLoansOnRealEstateMember
/ us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis
= ltc_AssistedLivingPropertiesMember
/ ltc_RealEstateUnitsByTypeAxis
= ltc_AssistedLivingFacilityUnitsMember
   
Range of Care Properties [Member] | California      
Mortgage Loans      
Proceeds received from the payoff of a mortgage loan 2,285,000ltc_ProceedsFromPayoffOfMortgageLoan
/ dei_EntityByLocationAxis
= stpr_CA
/ us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis
= ltc_RangeOfCarePropertiesMember
   
Range of Care Properties [Member] | Real Estate Investment [Member]      
Mortgage Loans      
Gross Investments $ 43,907,000us-gaap_RealEstateInvestmentPropertyAtCost
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis
= ltc_RangeOfCarePropertiesMember
   
Percentage of Investments 4.50%ltc_RealEstateInvestmentsPercentage
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis
= ltc_RangeOfCarePropertiesMember
   
Number of Properties 7us-gaap_NumberOfRealEstateProperties
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis
= ltc_RangeOfCarePropertiesMember
   
Investment per Bed/Unit 48.36ltc_RealEstateInvestmentsPerUnit
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis
= ltc_RangeOfCarePropertiesMember
   
Range of Care Properties [Member] | Skilled Nursing Facility Beds [Member] | Real Estate Investment [Member]      
Mortgage Loans      
Number of Beds/Units 634us-gaap_NumberOfUnitsInRealEstateProperty
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis
= ltc_RangeOfCarePropertiesMember
/ ltc_RealEstateUnitsByTypeAxis
= ltc_SkilledNursingFacilityBedsMember
   
Range of Care Properties [Member] | Assisted Living Facility Units [Member] | Real Estate Investment [Member]      
Mortgage Loans      
Number of Beds/Units 274us-gaap_NumberOfUnitsInRealEstateProperty
/ us-gaap_InvestmentTypeAxis
= us-gaap_RealEstateInvestmentMember
/ us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis
= ltc_RangeOfCarePropertiesMember
/ ltc_RealEstateUnitsByTypeAxis
= ltc_AssistedLivingFacilityUnitsMember