Fair Value of Financial Instruments - Assets And Liabilities (Details) - USD ($) $ in Thousands	Mar. 31, 2021	Dec. 31, 2020
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Interest rate cap derivative asset	$ 10	$ 5
Interest rate swap derivative liabilities	(8,255)	(10,106)
Stock purchase warrant	1,906	0
Non-real estate investment
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Non-real estate investments measured at fair value	3,781	750
Non-real estate investments measured at NAV	6,482	3,338
Level 1
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Interest rate cap derivative asset	0	0
Interest rate swap derivative liabilities	0	0
Stock purchase warrant	0	0
Level 1 \| Non-real estate investment
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Non-real estate investments measured at fair value	2,069	0
Non-real estate investments measured at NAV	0	0
Level 2
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Interest rate cap derivative asset	10	5
Interest rate swap derivative liabilities	(8,255)	(10,106)
Stock purchase warrant	1,906	0
Level 2 \| Non-real estate investment
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Non-real estate investments measured at fair value	1,712	750
Non-real estate investments measured at NAV	0	0
Level 3
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Interest rate cap derivative asset	0	0
Interest rate swap derivative liabilities	0	0
Stock purchase warrant	0	0
Level 3 \| Non-real estate investment
Fair Value, Balance Sheet Grouping, Financial Statement Captions
Non-real estate investments measured at fair value	0	0
Non-real estate investments measured at NAV	$ 0	$ 0

Non-Real Estate Investments Measured At NAV

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Warrant, Fair Value

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Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes assets not subject to a master netting arrangement and not elected to be offset.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 55
-Paragraph 10
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
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Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=51824906&loc=SL20225862-175312

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
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-URI http://asc.fasb.org/extlink&oid=121572278&loc=d3e13433-108611

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 20
-Section 55
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-URI http://asc.fasb.org/extlink&oid=99393222&loc=SL20226008-175313

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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.

+ References

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Fair value portion of investment securities, including, but not limited to, marketable securities, derivative financial instruments, and investments accounted for under the equity method.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 820
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=117815213&loc=d3e19207-110258

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