Disposal group including discontinued operation loss gain on write down.

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Number of properties sold.

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Number of real estate facilities designated as held for sale.

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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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No definition available.

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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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Amount of difference between the carrying amount and the sales price of real estate properties sold as part of discontinued operations.

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No definition available.

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Amount after allowance and deduction of deferred interest and fees, unamortized costs and premiums and discounts from face amounts, of loans and leases held in portfolio, including but not limited to, commercial and consumer loans. Includes loans held for sale. Excludes loans and leases covered under loss sharing agreements.

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The number of businesses acquired by the entity during the period.

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No definition available.

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The cash inflow from an entity that is affiliated with the entity by means of direct or indirect ownership.

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The cash inflow from amounts received from issuance of long-term debt that is wholly or partially secured by collateral. Excludes proceeds from tax exempt secured debt.

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- Definition

The cash inflow from the sale of property, plant and equipment (capital expenditures), software, and other intangible assets.

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Cash received for the sale of real estate that is not part of an investing activity during the current period.

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Amount of real estate investments, 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; (7) other real estate investments; (8) real estate joint ventures; and (9) unconsolidated real estate and other joint ventures not separately presented.

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Real Estate and Lending Activities - Disposals - Additional Information (Detail) $ in Thousands, € in Millions						3 Months Ended	6 Months Ended
	Aug. 03, 2018 EUR (€)	Jun. 07, 2018 EUR (€) Hospital	Jun. 04, 2018 USD ($) Hospital	Mar. 01, 2018 USD ($)	Mar. 31, 2017 USD ($)	Sep. 30, 2018 EUR (€)	Jun. 30, 2018 USD ($) Facility	Jun. 30, 2017 USD ($)	Dec. 31, 2017 USD ($)
Debt Instrument [Line Items]
Proceeds from sale of facilities					$ 64,000
Loans, Balance							$ 1,834,721		$ 1,928,525
Gain on real estate dispositions					7,400
Gain offset by non-cash charges					$ 600
Net proceeds from sale of real estate							221,931	$ 64,335
Steward Health Care System LLC [Member] \| Houston, Texas [Member] \| St. Joseph Medical Center [Member]
Debt Instrument [Line Items]
Gain on real estate dispositions				$ 1,500
Gain offset by non-cash charges				1,700
Net proceeds from sale of real estate				$ 148,000
Working Capital Loans [Member]
Debt Instrument [Line Items]
Loans, Balance							29,565		31,761
Mortgage Loans [Member]
Debt Instrument [Line Items]
Loans, Balance							1,686,866		$ 1,778,316
Germany [Member] \| Acute Care Hospital [Member]
Debt Instrument [Line Items]
Ownership interest in joint venture under the equity method		50.00%
Aggregate value of ownership interest		€ 1,635					$ 1,299,503
Number of facilities designated as held for sale \| Facility							71
Germany [Member] \| Acute Care Hospital [Member] \| Subsequent Event [Member]
Debt Instrument [Line Items]
Proceeds from issuance of new secured debt \| €	€ 655
California, Texas, and Oregon [Member] \| Vibra Healthcare, LLC [Member]
Debt Instrument [Line Items]
Proceeds from sale of facilities			$ 53,300
Gain on real estate dispositions			24,200
Gain offset by non-cash charges			5,100
California, Texas, and Oregon [Member] \| Working Capital Loans [Member] \| Vibra Healthcare, LLC [Member]
Debt Instrument [Line Items]
Loans, Balance			1,500
California, Texas, and Oregon [Member] \| Mortgage Loans [Member] \| Vibra Healthcare, LLC [Member]
Debt Instrument [Line Items]
Loans, Balance			$ 18,300
California, Texas, and Oregon [Member] \| Long-term Acute Care Hospital [Member] \| Vibra Healthcare, LLC [Member]
Debt Instrument [Line Items]
Number of properties sold \| Hospital			3
Primotop Holdings S.a.r.l. [Member] \| Germany [Member] \| Acute Care Hospital [Member]
Debt Instrument [Line Items]
Ownership interest in joint venture under the equity method		50.00%
Number of facilities acquired \| Hospital		71
Primotop Holdings S.a.r.l. [Member] \| Germany [Member] \| Scenario, Forecast [Member] \| Acute Care Hospital [Member]
Debt Instrument [Line Items]
Proceeds from joint venture \| €						€ 1,140