Debt - 2019 Financings (Details) - Subsequent Event $ in Millions	May 07, 2019 USD ($) community
Mortgage notes payable
Debt Instrument [Line Items]
Percentage of principal bearing fixed rate	60.00%
Fixed rate	4.52%
Percentage of principal bearing variable rate	40.00%
Mortgage notes payable \| Non-Recourse Supplemental Loan
Debt Instrument [Line Items]
Face amount	$ 111.1
Mortgage notes payable \| Mortgage Debt Due 2019
Debt Instrument [Line Items]
Extinguishment of debt	$ 156.0
Secured debt \| Non-Recourse First Mortgages
Debt Instrument [Line Items]
Number of communities securing debt \| community	14
LIBOR \| Mortgage notes payable
Debt Instrument [Line Items]
Basis spread on variable rate basis	2.23%

Debt Instrument, Number Of Communities Securing Debt

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- Definition

Percentage points added to the reference rate to compute the variable rate on the debt instrument.

+ References

No definition available.

+ Details

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- Definition

Face (par) amount of debt instrument at time of issuance.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=114775744&loc=d3e28551-108399

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

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- Definition

Contractual interest rate for funds borrowed, under the debt agreement.

+ References

Reference 1: 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(a)(1))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

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- Definition

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.

+ References

No definition available.

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- Definition

Gross amount of debt extinguished.

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- Definition

The interest rate applicable to the portion of the carrying amount of long-term borrowings outstanding as of the balance sheet date, including current maturities, which accrues interest at a set, unchanging rate.

+ References

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- Definition

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