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Number of Properties Impaired

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Number Of Real Estate Properties Impaired

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Real Estate Investment Property, Aggregate Carrying Value Before Impairment

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- Definition

Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized.

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Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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The charge against earnings in the period to reduce the carrying amount of real property to fair value.

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Carrying amount as of the balance sheet date of investments in land and buildings held for sale, excluding real estate considered to be inventory of the entity.

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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.

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Dispositions of Real Estate and Discontinued Operations - Impairments of Real Estate (Details) $ / item in Thousands	3 Months Ended			9 Months Ended
	Sep. 30, 2021 USD ($) property	Jun. 30, 2021 USD ($)	Sep. 30, 2020 USD ($) property	Sep. 30, 2021 USD ($) property	Sep. 30, 2020 USD ($) $ / item property	Dec. 31, 2020 USD ($)
Real Estate [Line Items]
Impairment of real estate			$ 37,000,000		$ 87,000,000
Goodwill, impairment loss	$ 0		0	$ 0	$ 0
Goodwill	0			0
Deferred tax assets, valuation allowance	$ 36,000,000			$ 36,000,000		$ 33,000,000
Number of properties impaired \| property	2			2
Minimum
Real Estate [Line Items]
Impairment calculation, price per unit \| $ / item					33
Maximum
Real Estate [Line Items]
Impairment calculation, price per unit \| $ / item					300
Weighted Average
Real Estate [Line Items]
Impairment calculation, price per unit \| $ / item					136
Discontinued Operations
Real Estate [Line Items]
Impairment of real estate			36,000,000		$ 82,000,000
Held-for-sale
Real Estate [Line Items]
Goodwill, impairment loss	$ 22,000,000	$ 7,000,000		$ 29,000,000
Goodwill	0			0		$ 29,000,000
Impairments 2020, Group One
Real Estate [Line Items]
Real estate investment property, aggregate carrying value before impairment			200,000,000		200,000,000
Real estate held-for-sale			163,000,000		163,000,000
Impairments 2020, Group Two
Real Estate [Line Items]
Real estate investment property, aggregate carrying value before impairment			424,000,000		424,000,000
Real estate held-for-sale			$ 337,000,000		$ 337,000,000
SHOP
Real Estate [Line Items]
Impairment of real estate				$ 4,000,000
Number of real estate properties impaired \| property			9	1	28
SHOP \| Impairments 2021
Real Estate [Line Items]
Real estate investment property, aggregate carrying value before impairment	20,000,000			$ 20,000,000
Real estate held-for-sale	16,000,000			16,000,000
Senior housing triple-net
Real Estate [Line Items]
Number of real estate properties impaired \| property			1		5
Medical office
Real Estate [Line Items]
Impairment of real estate	$ 2,000,000			$ 2,000,000
Number of real estate properties impaired \| property	2		1	2	2
Medical office \| Impairments 2021
Real Estate [Line Items]
Real estate investment property, aggregate carrying value before impairment	$ 13,000,000			$ 13,000,000
Real estate held-for-sale	$ 11,000,000			$ 11,000,000
Undeveloped MOB land parcel
Real Estate [Line Items]
Number of real estate properties impaired \| property					1