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Leases - Additional Information (Details)	12 Months Ended
	Dec. 31, 2020 community lease
Lessee, Lease, Description [Line Items]
Number of communities leased | community	301
Number of operating communities leased	235
Number of financing communities leased	66
Operating lease, weighted average remaining lease term	6 years 8 months 12 days
Finance lease, weighted average remaining lease term	6 years 3 months 18 days
Operating lease, weighted average discount rate	7.20%
Finance lease, weighted average discount rate	8.00%
Minimum
Lessee, Lease, Description [Line Items]
Renewal term	5 years
Maximum
Lessee, Lease, Description [Line Items]
Renewal term	20 years

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Weighted average discount rate for finance lease calculated at point in time.

+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (g)(4)
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- Definition

Weighted average remaining lease term for finance lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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