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Supplemental Balance Sheet Information - Narrative (Details) $ in Millions	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($) entryFee	Oct. 01, 2019 entryFee
Schedule of Investments [Line Items]
Ownership Percentage	50.00%
CCRC Venture | CCRCs
Schedule of Investments [Line Items]
Number of entry fee | entryFee		16	14
CCRC Venture Opco | HCP, Inc.
Schedule of Investments [Line Items]
Ownership Percentage		49.00%
CCRC Venture
Schedule of Investments [Line Items]
Ownership Percentage		51.00%
Equity method liability | $	$ 10.1	$ 66.2

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+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571

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