Represents the amount of investment commitments of the entity.

No definition available.

Name:	ltc_InvestmentCommitments
Namespace Prefix:	ltc_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

- Definition

Represents the amount funded into various investment commitments for completed construction by the entity during the period.

+ References

No definition available.

+ Details

Name:	ltc_InvestmentCommitmentsAmountFundedDuringPeriodForCompletedConstruction
Namespace Prefix:	ltc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

- References

No definition available.

+ Details

Name:	ltc_InvestmentCommitmentsForCompletedConstructionProjectsAbstract
Namespace Prefix:	ltc_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the total amount funded for completed construction projects under various investment commitments of the entity.

+ References

No definition available.

+ Details

Name:	ltc_InvestmentCommitmentsTotalAmountFundedForCompletedConstructionProjects
Namespace Prefix:	ltc_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Represents the number of beds and units under completed construction projects of the entity.

+ References

No definition available.

+ Details

Name:	ltc_NumberOfBedsAndUnitsUnderCompletedConstructionProjects
Namespace Prefix:	ltc_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	instant

- Definition

Represents the number of properties under completed construction projects.

+ References

No definition available.

+ Details

Name:	ltc_NumberOfPropertiesUnderCompletedConstructionProjects
Namespace Prefix:	ltc_
Data Type:	xbrli:integerItemType
Balance Type:	na
Period Type:	duration

- 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

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Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Details

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- Details

Name:	us-gaap_CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationByPropertyOrProjectAxis=ltc_DevelopmentProjectMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_CapitalizedCostsOfUnprovedPropertiesExcludedFromAmortizationByPropertyOrProjectAxis=ltc_ImprovementsProjectMember
Namespace Prefix:
Data Type:	na
Balance Type:
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- Details

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Data Type:	na
Balance Type:
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- Details

Name:	us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=ltc_SkilledNursingPropertiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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- Details

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Real Estate Investments - Development and Improvement Projects (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2017 USD ($) item property	Dec. 31, 2016 USD ($) item property	Dec. 31, 2015 USD ($) item property
Real estate investments
Investment Commitment	$ 193,708
Real Estate Investment Completed Projects
Completed development and improvement projects
Number of Properties \| property		7	5
Number of Beds/Units \| item		611	518
Funding		$ 42,974	$ 3,564
Total Funding		81,561	14,906
Developments
Completed development and improvement projects
Funding	22,901	42,342	25,929
Improvements
Completed development and improvement projects
Funding	2,899	6,792	7,534
ALF \| Developments
Real estate investments
Investment Commitment	17,667	41,859	24,099
ALF \| Improvements
Real estate investments
Investment Commitment	1,152	3,034	3,950
SNF \| Developments
Real estate investments
Investment Commitment	5,234	483	1,830
SNF \| Improvements
Real estate investments
Investment Commitment	1,356	$ 3,758	$ 3,584
SNF \| Improvements \| Real Estate Investment Completed Projects \| Texas
Completed development and improvement projects
Number of Properties \| property			1
Number of Beds/Units \| item			196
Funding			$ 522
Total Funding			$ 522
SNF \| Improvements \| Real Estate Investment Completed Projects \| California
Completed development and improvement projects
Number of Properties \| property			1
Number of Beds/Units \| item			121
Funding			$ 1,481
Total Funding			$ 1,481
SNF \| Improvements \| Real Estate Investment Completed Projects \| Arizona
Completed development and improvement projects
Number of Properties \| property		1
Number of Beds/Units \| item		160
Funding		$ 3,432
Total Funding		$ 4,672
SNF \| Improvements \| Real Estate Investment Completed Projects \| Tennessee
Completed development and improvement projects
Number of Properties \| property			2
Number of Beds/Units \| item			141
Funding			$ 39
Total Funding			$ 2,200
Other Properties \| Improvements
Real estate investments
Investment Commitment	$ 391
MC Units \| Developments \| Real Estate Investment Completed Projects \| Texas
Completed development and improvement projects
Number of Properties \| property		1
Number of Beds/Units \| item		56
Funding		$ 1,110
Total Funding		$ 11,776
MC Units \| Developments \| Real Estate Investment Completed Projects \| California
Completed development and improvement projects
Number of Properties \| property		1
Number of Beds/Units \| item		66
Funding		$ 7,716
Total Funding		$ 12,400
MC Units \| Developments \| Real Estate Investment Completed Projects \| Colorado
Completed development and improvement projects
Number of Properties \| property			1
Number of Beds/Units \| item			60
Funding			$ 1,522
Total Funding			$ 10,703
MC Units \| Developments \| Real Estate Development Commitments \| Real Estate Investment Completed Projects \| Illinois
Completed development and improvement projects
Number of Properties \| property	1
Number of Beds/Units \| item	66
Funding	$ 7,753
Total Funding	$ 13,498
MC Units \| Developments \| Real Estate Development Commitments, Commitments One \| Real Estate Investment Completed Projects \| Illinois
Completed development and improvement projects
Number of Properties \| property		1
Number of Beds/Units \| item		66
Funding		$ 2,980
Total Funding		$ 12,248
MC Units \| Developments \| Real Estate Development Commitments, Commitments Two \| Real Estate Investment Completed Projects \| Illinois
Completed development and improvement projects
Number of Properties \| property		1
Number of Beds/Units \| item		66
Funding		$ 7,331
Total Funding		$ 11,962
ALF & MC \| Developments \| Real Estate Investment Completed Projects \| South Carolina
Completed development and improvement projects
Number of Properties \| property		1
Number of Beds/Units \| item		89
Funding		$ 9,170
Total Funding		$ 15,080
ILF \| Developments \| Real Estate Investment Completed Projects \| Kansas
Completed development and improvement projects
Number of Properties \| property		1
Number of Beds/Units \| item		108
Funding		$ 11,235
Total Funding		$ 13,423