Segment Reporting - Schedule of Properties (Details) $ in Thousands	6 Months Ended
Jun. 30, 2020 USD ($) unit property
Real Estate Properties [Line Items]
Properties Under Management	75
Units Under Management \| unit	10,515
Property and Other Revenues \| $	$ 142,883
Revenue
Real Estate Properties [Line Items]
Percentage of Total Property and Other Revenues	100.00%
Watermark Retirement Communities
Real Estate Properties [Line Items]
Properties Under Management	30
Units Under Management \| unit	5,265
Property and Other Revenues \| $	$ 73,675
Watermark Retirement Communities \| Revenue
Real Estate Properties [Line Items]
Percentage of Total Property and Other Revenues	51.60%
Solstice Senior Living
Real Estate Properties [Line Items]
Properties Under Management	32
Units Under Management \| unit	4,000
Property and Other Revenues \| $	$ 51,199
Solstice Senior Living \| Revenue
Real Estate Properties [Line Items]
Percentage of Total Property and Other Revenues	35.80%
Avamere Health Services
Real Estate Properties [Line Items]
Properties Under Management	5
Units Under Management \| unit	453
Property and Other Revenues \| $	$ 9,054
Avamere Health Services \| Revenue
Real Estate Properties [Line Items]
Percentage of Total Property and Other Revenues	6.30%
Arcadia Management
Real Estate Properties [Line Items]
Properties Under Management	4
Units Under Management \| unit	572
Property and Other Revenues \| $	$ 5,308
Arcadia Management \| Revenue
Real Estate Properties [Line Items]
Percentage of Total Property and Other Revenues	3.70%
Integral Senior Living
Real Estate Properties [Line Items]
Properties Under Management	3
Units Under Management \| unit	162
Property and Other Revenues \| $	$ 3,506
Integral Senior Living \| Revenue
Real Estate Properties [Line Items]
Percentage of Total Property and Other Revenues	2.50%
Senior Lifestyle Corporation
Real Estate Properties [Line Items]
Properties Under Management	1
Units Under Management \| unit	63
Property and Other Revenues \| $	$ 0
Number of properties held for sale	1
Senior Lifestyle Corporation \| Revenue
Real Estate Properties [Line Items]
Percentage of Total Property and Other Revenues	0.00%
Other
Real Estate Properties [Line Items]
Properties Under Management	0
Units Under Management \| unit	0
Property and Other Revenues \| $	$ 141
Other \| Revenue
Real Estate Properties [Line Items]
Percentage of Total Property and Other Revenues	0.10%
Winterfell \| Solstice Senior Living
Real Estate Properties [Line Items]
Ownership interest (as a percentage)	80.00%

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- Definition

For an entity that discloses a concentration risk in relation to quantitative amount, which serves as the "benchmark" (or denominator) in the equation, this concept represents the concentration percentage derived from the division.

+ References

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The parent entity's interest in net assets of the subsidiary, expressed as a percentage.

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The total amount of noninterest income which may be derived from: (1) fees and commissions; (2) premiums earned; (3) insurance policy charges; (4) the sale or disposal of assets; and (5) other sources not otherwise specified.

+ References

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- Definition

The number of real estate properties owned as of the balance sheet date.

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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.

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