Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=109500613&loc=SL6031897-161870

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-03(16))
-URI http://asc.fasb.org/extlink&oid=119400593&loc=d3e572229-122910

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(22))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(16))
-URI http://asc.fasb.org/extlink&oid=6876686&loc=d3e534808-122878

Name:	us-gaap_DebtInstrumentCarryingAmount
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

Debt - Mortgage Debt (Details) $ in Thousands	1 Months Ended
Debt - Mortgage Debt (Details) $ in Thousands	Jul. 31, 2019 USD ($) property	Jun. 30, 2019 property	May 31, 2019 USD ($) property	Apr. 30, 2019 property	Sep. 30, 2019 USD ($) facility
Debt Instrument
Long-term debt					$ 6,549,877
Mortgage Debt
Debt Instrument
Long-term debt	$ 112,000		$ 50,000		$ 262,084
Weighted-average interest rate (as a percent)	4.89%		4.83%		4.13%
Number of healthcare facilities used to secure debt (in facilities) \| facility					17
Debt instrument, collateral, healthcare facilities carrying value					$ 523,000
Senior Housing
Debt Instrument
Number of properties acquired \| property		1
Senior Housing \| Senior Housing
Debt Instrument
Number of properties acquired \| property	5		3	9