Total number of common shares of an entity that have been sold or granted to shareholders (includes common shares that were issued, repurchased and remain in the treasury). These shares represent capital invested by the firm's shareholders and owners, and may be all or only a portion of the number of shares authorized. Shares issued include shares outstanding and shares held in the treasury.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02(29))
-URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682

Name:	us-gaap_CommonStockSharesIssued
Namespace Prefix:	us-gaap_
Data Type:	xbrli:sharesItemType
Balance Type:	na
Period Type:	instant

Internalization - Schedule of Base Consideration (Parenthetical) - (Detail) - shares	Jun. 30, 2020	Feb. 07, 2020	Dec. 31, 2019
Business Acquisition Contingent Consideration [Line Items]
Common stock, shares issued	26,077,000		26,001,000
Common Stock
Business Acquisition Contingent Consideration [Line Items]
Common stock, shares issued		781,000
OP Units
Business Acquisition Contingent Consideration [Line Items]
Operating partnership units		1,320,000