Related Party Transactions (Details) - USD ($) $ in Thousands	3 Months Ended	9 Months Ended
Sep. 30, 2021	Sep. 30, 2020	Sep. 30, 2021	Sep. 30, 2020
Related Party Transaction [Line Items]
Rental revenue	$ 9,628	$ 11,454	$ 30,183	$ 34,461
Property operating expenses	5,610	6,388	16,500	18,507
General and administrative	3,698	1,997	12,799	7,958
Advisory fee to related party	3,419	2,329	11,594	7,055
Interest income	6,128	5,421	17,388	16,459
Interest expense	7,057	7,622	22,476	26,295
Affiliate
Related Party Transaction [Line Items]
Rental revenue	312	262	867	808
Property operating expenses	178	254	755	750
General and administrative	1,017	1,094	3,434	2,991
Interest income	5,053	4,812	15,139	14,613
Interest expense	1,431	1,583	4,199	5,040
Affiliate \| Pillar and Regis
Related Party Transaction [Line Items]
Rental revenue	312	262	867	808
Affiliate \| Regis
Related Party Transaction [Line Items]
Property operating expenses	178	254	755	750
Affiliate \| Pillar
Related Party Transaction [Line Items]
General and administrative	1,017	1,094	3,434	2,991
Advisory fee to related party	3,419	2,329	11,594	7,055
Interest expense	1,431	1,583	4,199	5,040
Affiliate \| UHF and Pillar
Related Party Transaction [Line Items]
Interest income	$ 5,053	$ 4,812	$ 15,139	$ 14,613
ARL \| Affiliate \| MRHI
Related Party Transaction [Line Items]
Ownership interest	90.80%		90.80%

The amount of advisory fees to related parties, during the period.

No definition available.

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- Definition

Amount of expense incurred and directly related to generating revenue by lessor from operating lease of rented property and equipment.

+ References

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- Definition

The aggregate total of expenses of managing and administering the affairs of an entity, including affiliates of the reporting entity, which are not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

+ References

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- Definition

Amount of the cost of borrowed funds accounted for as interest expense for debt.

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- Definition

Amount before accretion (amortization) of purchase discount (premium) of interest income on nonoperating securities.

+ References

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- Definition

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

+ References

No definition available.

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- Definition

Amount of operating lease income from lease payments and variable lease payments paid and payable to lessor. Includes, but is not limited to, variable lease payments not included in measurement of lease receivable.

+ References

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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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