Assets Held-For-Sale, Purchase And Sale Agreement Less Estimated Costs To Sell

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- Definition

Historical Cost Basis For Shares Owned

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- Definition

The number of real estate properties owned by the entity, which are classified as held for sale as of the balance sheet date.

+ References

No definition available.

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- Definition

Amount of write-down of assets recognized in the income statement. Includes, but is not limited to, losses from tangible assets, intangible assets and goodwill.

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- Definition

Fair value portion of assets classified as held for sale.

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Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition

Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

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- Definition

Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation.

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- Definition

Amount of unrealized gain (loss) on investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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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.

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- Definition

Balance held at close of period in number of shares.

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- Definition

Fair value portion of investments in an entity not consolidated. Includes, but is not limited to, investments in an entity that is affiliated with the reporting entity by means of direct or indirect ownership, an entity in which the reporting entity shares control of the entity with another party or group, an entity which the company has significant influence, but does not have control and subsidiaries that are not required to be consolidated and are accounted for using the equity or cost method.

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- Definition

The number of real estate properties owned as of the balance sheet date.

+ References

No definition available.

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- Definition

Fair value portion of physical assets used in the normal conduct of business to produce goods and services and not intended for resale. Examples include, but are not limited to, land, buildings, machinery and equipment, office equipment, and furniture and fixtures.

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Fair Value of Assets and Liabilities - Assets and Liabilities (Details) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2020 USD ($) property shares	Sep. 30, 2019 USD ($)	Sep. 30, 2020 USD ($) property shares	Sep. 30, 2019 USD ($)	Jan. 01, 2020 USD ($) shares	Dec. 31, 2019 shares
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Common shares of beneficial interest, shares issued (in shares) \| shares	238,268,478		238,268,478			237,897,163
Common shares of beneficial interest, shares outstanding (in shares) \| shares	238,268,478		238,268,478			237,897,163
Unrealized gains and losses on equity securities held	$ 12,510	$ 40	$ 14,541	$ (40)
Impairment of assets	$ 64,202	$ 33,099	$ 106,611	$ 41,518
Number of real estate properties \| property	407		407
Five Star
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Common shares of beneficial interest, shares issued (in shares) \| shares					10,268,158	10,268,158
Five Star
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities investment (in shares) \| shares	10,691,658		10,691,658
Initial cost basis	$ 44,448		$ 44,448		$ 38,095
Common shares of beneficial interest, shares outstanding (in shares) \| shares						423,500
Unrealized gains and losses on equity securities held	12,510		14,541
Recurring \| Five Star
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in affiliates, fair value	54,207		54,207
Recurring \| Quoted Prices in Active Markets for Identical Assets (Level 1) \| Five Star
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in affiliates, fair value	54,207		54,207
Recurring \| Significant Other Observable Inputs (Level 2) \| Five Star
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in affiliates, fair value	0		0
Recurring \| Significant Unobservable Inputs (Level 3) \| Five Star
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Investments in affiliates, fair value	0		0
Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Real estate properties held for sale	56,673		56,673
Real estate properties at fair value	31,010		31,010
Nonrecurring \| Quoted Prices in Active Markets for Identical Assets (Level 1)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Real estate properties held for sale	0		0
Real estate properties at fair value	0		0
Nonrecurring \| Significant Other Observable Inputs (Level 2)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Real estate properties held for sale	56,673		56,673
Real estate properties at fair value	0		0
Nonrecurring \| Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Real estate properties held for sale	0		0
Real estate properties at fair value	$ 31,010		$ 31,010
Common Shares \| Five Star
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Equity securities investment (in shares) \| shares	10,691,658		10,691,658
Medical Office Buildings \| Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Sale price less estimated cost to sell	$ 3,875		$ 3,875
Medical Office Buildings \| Held-for-sale, Not Discontinued Operations \| Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment of assets			$ 1,524
Number of real estate properties held for sale \| property	1		1
Sale price less estimated cost to sell	$ 160		$ 160
Senior Living Communities \| Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Real estate properties at fair value	31,010		31,010
Impairment of assets			59,847
Sale price less estimated cost to sell	$ 54,100		$ 54,100
Number of real estate properties \| property	9		9
Senior Living Communities \| Held-for-sale, Not Discontinued Operations \| Nonrecurring
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Impairment of assets			$ 33,356
Number of real estate properties held for sale \| property	14		14
Sale price less estimated cost to sell	$ 1,142		$ 1,142