Equity - Summary of Dividend Activity (Detail) - $ / shares	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
First Quarter Dividend
Dividends Payable [Line Items]
Declaration Date	Feb. 15, 2019
Record Date	Feb. 26, 2019
Payment Date	Mar. 22, 2019
Dividend per share (in dollars per share)	$ 0.05
Second Quarter Dividend
Dividends Payable [Line Items]
Declaration Date	Apr. 25, 2019
Record Date	May 06, 2019
Payment Date	Jun. 07, 2019
Dividend per share (in dollars per share)	$ 0.05
Third Quarter Dividend
Dividends Payable [Line Items]
Declaration Date	Jul. 25, 2019	Jul. 26, 2018
Record Date	Aug. 05, 2019	Aug. 06, 2018
Payment Date	Sep. 06, 2019	Sep. 07, 2018
Dividend per share (in dollars per share)	$ 0.05	$ 0.05
Fourth Quarter Dividend
Dividends Payable [Line Items]
Declaration Date	Oct. 23, 2019	Oct. 25, 2018
Record Date	Nov. 04, 2019	Nov. 05, 2018
Payment Date	Dec. 06, 2019	Dec. 07, 2018
Dividend per share (in dollars per share)	$ 0.05	$ 0.05