For an unclassified balance sheet, amounts due from an entity in which the reporting entity shares joint control with another party or group.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
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-Subparagraph (SX 210.4-08.(k)(1))
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Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
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Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
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-Name Accounting Standards Codification
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Name:	us-gaap_DueFromJointVentures
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

Real Estate and Lending Activities - Loans - Additional Information (Detail) $ in Thousands, € in Millions	9 Months Ended
	Sep. 30, 2020 USD ($) Hospital	Sep. 30, 2020 EUR (€)	Dec. 31, 2019 USD ($)
Loans [Line Items]
Acquisition loan	$ 334,281		$ 123,893
Primotop Holdings S.a.r.l. [Member]
Loans [Line Items]
Shareholder loan to joint venture \| €		€ 290
Joint Venture Partner [Member]
Loans [Line Items]
Acquisition loan	$ 205,000
Acute Care Hospital [Member]
Loans [Line Items]
Number of facilities acquired \| Hospital	2