Represents the number of shares held as a percentage of the total shares outstanding at the end of the period.

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Investment Owned, Percentage of Total Outstanding Share Issuances

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Represents the number of communities managed by a related party.

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Number Of Living Units

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Number of Communities Leased by the Company

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Number of Leases With Related Party

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Represents the amount of improvements to real estate properties made by lessees and purchased by the entity.

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No definition available.

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Receivables

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Related Party Transaction, Amount Of Improvements To Communities To Leased Asset

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Related Party Transaction, Annual Minimum Rent Payable

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Expenses recognized during the period resulting from property management transactions (excluding transactions that are eliminated in consolidated or combined financial statements) with related party during the period.

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No definition available.

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Related Party Transaction, Monthly Minimum Rent Payable

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Related Party Transaction, Percentage Target EBITDA Of New Management Agreement Not Earned

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Related Party Transaction, Percentage Target EBITDA Of New Management Agreement Not Earned For All Communities

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Related Party Transaction, Percentage of Annual Incentive Fee

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Related Party Transaction, Property Management Agreement, Initial Term

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Represents the management fees payable to related parties under property management agreement expressed as a percentage of gross revenues.

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Related Party Transaction, Property Management Agreement, Management Fees as Percentage of Gross Revenues Realized At All Communities

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Represents the number of consecutive renewal terms of agreement that the entity has the option to renew.

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Related Party Transaction, Property Management Agreement, Renewal Term

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Related party Transaction, Variable Rent Payment Excluded From Rental Income

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Related party Transaction, Variable Rent Payment

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For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

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Contractual interest rate for funds borrowed, under the debt agreement.

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The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.

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Leases and Management Agreements with Five Star - Narrative (Details) $ in Thousands		1 Months Ended	3 Months Ended		6 Months Ended		11 Months Ended
	Apr. 01, 2019 USD ($)	Apr. 30, 2019 living_unit	Jun. 30, 2019 USD ($) community	Jun. 30, 2018 USD ($) community	Jun. 30, 2019 USD ($) community lease_agreement renewal_option	Jun. 30, 2018 USD ($) community	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)
Line of credit			$ 690,000		$ 690,000			$ 139,000
Senior Living Communities
Monthly minimum rent payable	$ 10,931
Payments to acquire assets	49,155
Five Star
Total rental income recognized					75,000
Annual minimum rent payable			$ 680		680
Amount of improvements to communities					$ 86,288
Investment owned, percentage of total shares outstanding			34.00%		34.00%
Percentage of total outstanding share issuances			51.00%		51.00%
Property management agreement, renewal term					5 years
Management fees as percentage of gross revenues			5.00%		5.00%
Percentage of gross revenues realized at all communities			1.50%		1.50%
Property management agreement, initial term					15 years
Number of consecutive renewal terms of agreement \| renewal_option					2
Percentage target EBITDA of new management agreement not earned					90.00%
Percentage target EBITDA of new Management agreement not earned for all communities					20.00%
Line of credit			$ 25,000		$ 25,000
Interest rate (as a percent)			6.00%		6.00%
Percentage of annual incentive fee			15.00%		15.00%
Payments to acquire assets					$ 49,155
Five Star
Number of communities leased by the Company \| community			181	184	181	184
Number of leases with related party \| lease_agreement					5
Total rental income recognized			$ 33,400	$ 51,692	$ 72,713	$ 103,450
Variable rent payment included in rental income			538		538
Variable rent payment excluded from rental income			1,289		2,664
Receivables			$ 14,786		$ 14,786			$ 18,697
Real estate improvements purchased						8,529
Investment owned, percentage of total shares outstanding			8.30%		8.30%
Property management agreement expense			$ 3,871	3,533	$ 7,660	$ 7,027
Five Star \| Rents from significant lessee \| Investment
Percentage of rental income					26.40%
Five Star \| Senior Living Communities
Number of communities managed by related party \| community					77	75
Rehabilitation Services \| Five Star
Expenses from transactions with related party			$ 1,513	$ 1,660	$ 3,188	$ 3,359
Rental income \| Five Star \| Rents from significant lessee \| Investment
Percentage of rental income			12.70%		13.80%
Scenario, Forecast \| Five Star
Monthly minimum rent payable							$ 11,000
Maximum \| Senior Living Communities
Payments to acquire assets	$ 60,000
Oregon \| Senior Living Communities
Number of living units \| living_unit		318