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Real Estate Investments - Types of property Improvement (Details) - USD ($) $ in Thousands | 6 Months Ended
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Jun. 30, 2022 | Jun. 30, 2021
Real estate investments |  |
Invested in projects | $ 14,779 |
Improvements |  |
Real estate investments |  |
Invested in projects | 2,905 | $ 2,046
ALF | Improvements |  |
Real estate investments |  |
Invested in projects | 1,964 | $ 2,046
SNF | Improvements |  |
Real estate investments |  |
Invested in projects | 620 |
Other | Improvements |  |
Real estate investments |  |
Invested in projects | $ 321 |

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- Definition Represents the amount funded into various investment commitments by the entity during the period. + References No definition available. + Details
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Namespace Prefix: | ltc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_RealEstatePropertiesLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=ltc_AssistedLivingPropertiesMember
Namespace Prefix: |
Data Type: | na
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Period Type: |

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- Details
Name: | srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=ltc_SkilledNursingPropertiesMember
Namespace Prefix: |
Data Type: | na
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- Details
Name: | srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=ltc_OtherSeniorHousingPropertiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |