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Stockholders' Equity and Noncontrolling Interests - Additional Information (Detail)								3 Months Ended						9 Months Ended
	Nov. 13, 2021 shares	Sep. 13, 2021 $ / shares	Jul. 27, 2021 Agreement $ / shares shares	Jun. 29, 2021 USD ($) shares	Jun. 14, 2021 $ / shares	Mar. 15, 2021 $ / shares	Nov. 13, 2020 USD ($) shares	Sep. 30, 2021 USD ($) $ / shares shares	Jun. 30, 2021 $ / shares shares	Mar. 31, 2021 $ / shares	Sep. 30, 2020 $ / shares shares	Jun. 30, 2020 $ / shares	Mar. 31, 2020 $ / shares shares	Sep. 30, 2021 USD ($) $ / shares shares	Jul. 26, 2021 $ / shares shares	Dec. 31, 2020 $ / shares shares	May 31, 2016 shares
Class Of Stock [Line Items]
Dividend declared per share | $ / shares								$ 0.12	$ 0.12	$ 0.12	$ 0.12	$ 0.12	$ 0.18
Dividends paid | $								$ 0						$ 278,000
At-the-market agreement to sell common shares, maximum offer price | $							$ 150,000,000
Common stock, par value | $ / shares			$ 0.01					$ 0.01						$ 0.01	$ 0.01	$ 0.01
Common stock, shares authorized			500,000,000					500,000,000						500,000,000	300,000,000	500,000,000	4,300,000
Number of IROP unites exchanged	122,155
OP Units outstanding	552,360
Common Shares
Class Of Stock [Line Items]
Issuance of common shares (in Shares)									2,932,000				3,406,000
Conversion of noncontrolling interest to common shares (in Shares)	122,155								122,155		87,148		82,357
Underwriting Agreement | BMO Capital Markets and Bank of Montreal
Class Of Stock [Line Items]
Issuance of common shares (in Shares)			16,100,000
Share price | $ / shares			$ 17.04
Underwriter's option to purchase additional shares			2,100,000
ATM Program | Forward Contracts
Class Of Stock [Line Items]
Number of shares issued				2,932,000			2,932,000
Net proceeds | $				$ 41,671,000
Forward Sale Agreement
Class Of Stock [Line Items]
Issuance of common shares (in Shares)			16,100,000											16,100,000
Share price | $ / shares								$ 17.04						$ 17.04
Number of agreements | Agreement			2
Settlement value of shares | $														$ 272,156,000
Dividend Declared
Class Of Stock [Line Items]
Declaration date		Sep. 13, 2021			Jun. 14, 2021	Mar. 15, 2021
Dividend declared per share | $ / shares		$ 0.12			$ 0.12	$ 0.12
Payment date		Oct. 22, 2021			Jul. 23, 2021	Apr. 23, 2021
Record date		Oct. 01, 2021			Jul. 02, 2021	Apr. 02, 2021
Dividend Declared | Noncontrolling Interests
Class Of Stock [Line Items]
Declaration date		Sep. 13, 2021			Jun. 14, 2021	Mar. 15, 2021
Dividend declared per share | $ / shares		$ 0.12			$ 0.12	$ 0.12
Payment date		Oct. 22, 2021			Jul. 23, 2021	Apr. 23, 2021
Record date		Oct. 01, 2021			Jul. 02, 2021	Apr. 02, 2021

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