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Stockholders' Equity and Noncontrolling Interests - Additional Information (Detail) $ / shares in Units, $ in Thousands					3 Months Ended						9 Months Ended
	Sep. 15, 2020 $ / shares	Jun. 15, 2020 $ / shares	Mar. 16, 2020 $ / shares	Feb. 20, 2020 Agreement $ / shares shares	Sep. 30, 2020 USD ($) $ / shares shares	Jun. 30, 2020 $ / shares	Mar. 31, 2020 USD ($) $ / shares shares	Sep. 30, 2019 $ / shares shares	Jun. 30, 2019 $ / shares shares	Mar. 31, 2019 $ / shares shares	Sep. 30, 2020 USD ($) shares
Class Of Stock [Line Items]
Dividend declared per share | $ / shares					$ 0.12	$ 0.12	$ 0.18	$ 0.18	$ 0.18	$ 0.18
Dividends paid | $					$ 0						$ 161
Limited partnership interest received in exchange for issuance of common stock					87,148						169,505
OP Units outstanding					701,986						701,986
Common Shares
Class Of Stock [Line Items]
Common stock issued							3,406,000	972,887	65,704	510,000
Conversion of noncontrolling interest to common shares (in Shares)					87,148		82,357				169,505
Forward Sale Agreement
Class Of Stock [Line Items]
Common stock issued				10,350,000
Share price | $ / shares				$ 14.688
Number of agreements | Agreement				2
Shares issued							3,406,000
Settlement value of shares | $							$ 50,000
Settlement of remaining shares											6,944,000
Proceeds from sale of stock upon settlement | $											$ 98,845
Underwriting Agreement | BMO Capital Markets and Bank of Montreal
Class Of Stock [Line Items]
Common stock issued				10,350,000
Share price | $ / shares				$ 14.688
Underwriter's option to purchase additional shares				1,350,000
Dividend Declared
Class Of Stock [Line Items]
Declaration date	Sep. 15, 2020	Jun. 15, 2020	Mar. 16, 2020
Dividend declared per share | $ / shares	$ 0.12	$ 0.12	$ 0.18
Payment date	Oct. 23, 2020	Jul. 24, 2020	Apr. 24, 2020
Record date	Oct. 02, 2020	Jul. 02, 2020	Apr. 02, 2020
Dividend Declared | Noncontrolling Interests
Class Of Stock [Line Items]
Declaration date	Sep. 15, 2020	Jun. 15, 2020	Mar. 16, 2020
Dividend declared per share | $ / shares	$ 0.12	$ 0.12	$ 0.18
Payment date	Oct. 23, 2020	Jul. 24, 2020	Apr. 24, 2020
Record date	Oct. 02, 2020	Jul. 02, 2020	Apr. 02, 2020

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