The number of beds or units in a real estate property sold by the entity.

No definition available.

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

- Definition

The number of real estate properties sold by the entity.

+ References

No definition available.

+ Details

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

- Definition

Sales price of real estate or properties that were intended to be sold or held for capital appreciation or rental income.

+ References

No definition available.

+ Details

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

- Definition

The difference between the carrying value and the sale price of real estate or properties that were intended to be sold or held for capital appreciation or rental income. This element refers to the gain (loss) included in earnings and not to the cash proceeds of the sale. This element is a noncash adjustment to net income when calculating net cash generated by operating activities using the indirect method.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-URI http://asc.fasb.org/extlink&oid=98514028&loc=d3e3602-108585

+ Details

Name:	us-gaap_GainLossOnSaleOfProperties
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

- References

No definition available.

+ Details

Name:	us-gaap_RealEstateHeldForDevelopmentAndSaleNetAbstract
Namespace Prefix:	us-gaap_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

- Definition

Amount of real estate investment property, net of accumulated depreciation, which may include the following: (1) land available-for-sale; (2) land available-for-development; (3) investments in building and building improvements; (4) tenant allowances; (5) developments in-process; (6) rental properties; and (7) other real estate investments.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03.1(d))
-URI http://asc.fasb.org/extlink&oid=6879938&loc=d3e572229-122910

+ Details

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

- Details

Name:	us-gaap_MortgageLoansOnRealEstateDescriptionTypeOfPropertyAxis=ltc_AssistedLivingPropertiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	invest_InvestmentGeographicRegionAxis=ltc_OhioAndPennsylvaniaMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

- Details

Name:	invest_InvestmentGeographicRegionAxis=ltc_IndianaAndIowaMember
Namespace Prefix:
Data Type:	na
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Real Estate Investments - Properties sold (Details) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Jun. 30, 2018 USD ($)	Jun. 30, 2017 USD ($)	Jun. 30, 2018 USD ($) item property	Jun. 30, 2017 USD ($)	Dec. 31, 2017 USD ($) item property
Disposals and other
Carrying value	$ 1,097,929		$ 1,097,929		$ 1,086,089
Net gain	48,345	$ 5,054	$ 48,345	$ 5,054
ALF \| Ohio and Pennsylvania
Disposals and other
Number of properties sold \| property			6
Number of beds or units in property sold \| item			320
Sales price			$ 67,500
Carrying value	$ 16,352		16,352
Net gain			$ 48,345
ALF \| Indiana and Iowa
Disposals and other
Number of properties sold \| property					4
Number of beds or units in property sold \| item					175
Sales price					$ 14,250
Carrying value					8,726
Net gain					$ 5,054