Represents the amortization period of mortgage loan on real estate properties.

No definition available.

Name:	ltc_MortgageLoansOnRealEstateAmortizationPeriod
Namespace Prefix:	ltc_
Data Type:	xbrli:durationItemType
Balance Type:	na
Period Type:	duration

- Definition

Represents the amount of current monthly debt service on mortgage loans on real estate.

+ References

No definition available.

+ Details

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

- Definition

Represents the number of owned properties.

+ References

No definition available.

+ Details

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

- Definition

Represents the number of units or beds of owned properties.

+ References

No definition available.

+ Details

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

- Definition

Amount of contractual principal due at origination of mortgage loan within investment in mortgage loan on real estate by entity with substantial portion of business acquiring and holding investment real estate or interest in real estate.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 12
-Paragraph Column F
-Subsection 29

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 948
-SubTopic 310
-Section S99
-Paragraph 1
-Subparagraph (SX 210.12-29(Column F))
-URI http://asc.fasb.org/extlink&oid=6589523&loc=d3e617274-123014

+ Details

Name:	srt_MortgageLoansOnRealEstateFaceAmountOfMortgages
Namespace Prefix:	srt_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Interest rate of mortgage loan within investment in mortgage loan on real estate by entity with substantial portion of business acquiring and holding investment real estate or interest in real estate.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 12
-Paragraph Column B
-Subsection 29

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 948
-SubTopic 310
-Section S99
-Paragraph 1
-Subparagraph (SX 210.12-29(Column B))
-URI http://asc.fasb.org/extlink&oid=6589523&loc=d3e617274-123014

+ Details

Name:	srt_MortgageLoansOnRealEstateInterestRate
Namespace Prefix:	srt_
Data Type:	num:percentItemType
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

Name:	srt_MortgageLoansOnRealEstateLineItems
Namespace Prefix:	srt_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of payment to be received at final maturity date for mortgage loan within investment in mortgage loan on real estate by entity with substantial portion of business acquiring and holding investment real estate or interest in real estate.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 12
-Footnote 5
-Subsection 29

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 948
-SubTopic 310
-Section S99
-Paragraph 1
-Subparagraph (SX 210.12-29(Footnote 5))
-URI http://asc.fasb.org/extlink&oid=6589523&loc=d3e617274-123014

+ Details

Name:	srt_MortgageLoansOnRealEstatePeriodicPaymentTermsBalloonPaymentToBeReceived
Namespace Prefix:	srt_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of principal due on delinquent mortgage loan within investment in mortgage loan on real estate by entity with substantial portion of business acquiring and holding investment real estate or interest in real estate.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher SEC
-Name Regulation S-X (SX)
-Number 210
-Section 12
-Paragraph Column H
-Subsection 29

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 948
-SubTopic 310
-Section S99
-Paragraph 1
-Subparagraph (SX 210.12-29(Column H))
-URI http://asc.fasb.org/extlink&oid=6589523&loc=d3e617274-123014

+ Details

Name:	srt_MortgageLoansOnRealEstatePrincipalAmountOfDelinquentLoans
Namespace Prefix:	srt_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Definition

Amount of investment in mortgage loan on real estate by entity with substantial portion of business acquiring and holding investment real estate or interest in real estate.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 948
-SubTopic 310
-Section S99
-Paragraph 1
-Subparagraph (SX 210.12-29(Column G))
-URI http://asc.fasb.org/extlink&oid=6589523&loc=d3e617274-123014

+ Details

Name:	us-gaap_MortgageLoansOnRealEstate
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

- Details

Name:	srt_StatementGeographicalAxis=stpr_MI
Namespace Prefix:
Data Type:	na
Balance Type:
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- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
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- Details

Name:	srt_MortgageLoansOnRealEstateDescriptionLoanCategoryAxis=ltc_MortgageLoansOnRealEstateMaturingIn2045Member
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=ltc_PropertyWith263BedsOrUnitsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=ltc_PropertyWith157BedsOrUnitsMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

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Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	us-gaap_InvestmentTypeAxis=us-gaap_MortgagesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	srt_RangeAxis=srt_MinimumMember
Namespace Prefix:
Data Type:	na
Balance Type:
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- Details

Name:	srt_RangeAxis=srt_MaximumMember
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SCHEDULE IV MORTGAGE LOANS ON REAL ESTATE - Summary (Details) $ in Thousands	12 Months Ended
	Dec. 31, 2018 USD ($) item property	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)
Mortgage loans on real estate
Number of properties \| property	22
Number of beds/units \| item	2,892
Balloon Amount	$ 215,748
Current Monthly Debt Service	1,963
Face amount of originated mortgages	247,253
Carrying Amount of Mortgages	242,939	$ 223,907	$ 229,801	$ 217,529
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Michigan \| Mortgage Loans on Real Estate Maturing in 2043
Mortgage loans on real estate
Number of properties \| property	15
Number of beds/units \| item	2,029
Interest rate (as a percent)	9.71%
Balloon Amount	$ 160,855
Current Monthly Debt Service	1,500
Face amount of originated mortgages	187,855
Carrying Amount of Mortgages	$ 184,160
Michigan \| Mortgage Loans on Real Estate Maturing in 2045 \| Property with 501 Beds/Units
Mortgage loans on real estate
Number of properties \| property	4
Number of beds/units \| item	501
Interest rate (as a percent)	9.22%
Balloon Amount	$ 29,487
Current Monthly Debt Service	257
Face amount of originated mortgages	33,317
Carrying Amount of Mortgages	$ 32,984
Michigan \| Mortgage Loans on Real Estate Maturing in 2045 \| Property with 157 Beds/Units
Mortgage loans on real estate
Number of properties \| property	1
Number of beds/units \| item	157
Interest rate (as a percent)	9.41%
Balloon Amount	$ 14,325
Current Monthly Debt Service	117
Face amount of originated mortgages	15,000
Carrying Amount of Mortgages	$ 14,825
Michigan \| Mortgage Loans On Real Estate Maturing In 2020
Mortgage loans on real estate
Number of properties \| property	2
Number of beds/units \| item	205
Interest rate (as a percent)	9.41%
Balloon Amount	$ 11,081
Current Monthly Debt Service	89
Face amount of originated mortgages	11,081
Carrying Amount of Mortgages	10,970
Principal Amount of Loans Subject to Delinquent Principal or Interest	$ 0
Mortgage Loans
Mortgage loans on real estate
General amortization schedule of mortgage loans	30 years
Mortgage Loans \| Minimum
Mortgage loans on real estate
Interest rate (as a percent)	9.20%
General amortization schedule of mortgage loans	30 years
Mortgage Loans \| Maximum
Mortgage loans on real estate
Interest rate (as a percent)	9.70%