The number of properties held for sale at the reporting date.

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- Definition

Difference between amount at which an investment accounted for under the equity method of accounting is carried (reported) on the balance sheet and amount of underlying equity in net assets the reporting Entity has in the investee.

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- Definition

This item represents an other than temporary decline in value that has been recognized against an investment accounted for under the equity method of accounting. The excess of the carrying amount over the fair value of the investment represents the amount of the write down which is or was reflected in earnings. The written down value is a new cost basis with the adjusted value of the investment becoming its new carrying value subject to the equity accounting method. Evidence of a loss in value might include, but would not necessarily be limited to, absence of an ability to recover the carrying amount of the investment or inability of the investee to sustain an earnings capacity which would justify the carrying amount of the investment.

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- Definition

The percentage of ownership of common stock or equity participation in the investee accounted for under the equity method of accounting.

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- 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.

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- Definition

The net gain (loss) resulting from sales and other disposals of real estate owned for investment purposes.

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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

The cash inflow associated with the sale of equity method investments, which are investments in joint ventures and entities in which the entity has an equity ownership interest normally of 20 to 50 percent and exercises significant influence.

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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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Investments in and Advances to Unconsolidated Joint Ventures - Narrative (Details) £ in Millions	1 Months Ended		3 Months Ended						12 Months Ended
	Dec. 31, 2019 USD ($)	Dec. 31, 2019 GBP (£)	Dec. 31, 2019 USD ($)	Sep. 30, 2019 USD ($) property	Jun. 30, 2019 USD ($)	Mar. 31, 2019 USD ($)	Sep. 30, 2018 USD ($)	Jun. 30, 2018 USD ($)	Dec. 31, 2019 USD ($)	Dec. 31, 2018 USD ($)	Dec. 31, 2017 USD ($)	Oct. 31, 2019 property
Schedule of Equity Method Investments [Line Items]
Impairment charge									$ 6,000,000
Gain (loss) on sales of real estate, net			$ 11,000,000	$ 0	$ 11,000,000	$ 8,000,000	$ 95,000,000	$ 25,000,000	22,900,000	$ 925,985,000	$ 356,641,000
Unconsolidated Joint Ventures
Schedule of Equity Method Investments [Line Items]
Aggregate unamortized basis difference	$ (64,000,000)		$ (64,000,000)						$ (64,000,000)	$ (69,000,000)
CCRC JV Investment
Schedule of Equity Method Investments [Line Items]
Number of properties classified as held for sale \| property				1
Impairment charge				$ 12,000,000
Investment ownership percentage	49.00%		49.00%						49.00%			49.00%
U.K. JV
Schedule of Equity Method Investments [Line Items]
Investment ownership percentage	49.00%		49.00%						49.00%
Proceeds from sale of equity method investments	$ 91,000,000	£ 70
Loss on sale of properties	7,000,000
Gain (loss) on sales of real estate, net	$ 1,000,000
Brookedale MTCA \| CCRC JV Investment
Schedule of Equity Method Investments [Line Items]
Investment ownership percentage												51.00%
CCRC JV Investment \| Brookedale MTCA
Schedule of Equity Method Investments [Line Items]
Number of real estate properties \| property												15
Assets leased to others \| Other non-reportable segments \| CCRC JV Investment
Schedule of Equity Method Investments [Line Items]
Number of real estate properties \| property												15
Assets leased to others \| Other non-reportable segments \| CCRC JV Investment \| Brookedale MTCA
Schedule of Equity Method Investments [Line Items]
Number of real estate properties \| property												13