Equity - Schedule of Redemption Activity (Details) - Common Stock - Share Redemption Program - $ / shares	12 Months Ended	77 Months Ended
Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020
Class of Stock [Line Items]
Shares of common stock redeemed (shares)	1,841,887	20,933,322	26,072,452
Weighted average price per share (in usd per share)	$ 9.01	$ 9.44	$ 9.41

Number of stock bought back by the entity at the exercise price or redemption price.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644

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Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	duration