Investments in Real Estate - Acquisitions Narrative (Details) - Real Estate Investment - USD ($)	9 Months Ended
Sep. 30, 2021	Sep. 30, 2020
Investments in real estate properties
Contingent consideration associated with acquisitions	$ 0	$ 0
Revenue generated from acquired properties during the period	67,400,000	27,500,000
Net income generated from acquired properties during the period	$ 12,900,000	$ 9,400,000

Amount of contingent consideration recognized as part of consideration transferred in asset acquisition.

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 50
-Section 30
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=123362884&loc=d3e9212-128498

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 50
-Section 25
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=123385561&loc=d3e9135-128495

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 50
-Section 30
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=123362884&loc=d3e9215-128498

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Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration