Earnings Per Common Share - Computation of Basic and Diluted Earnings Per Common Share (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Earnings Per Share [Abstract]
Net earnings	$ 13,524	$ 30,680	$ 27,606	$ 49,429
Less earnings attributable to RSUs outstanding	(547)	(716)	(1,094)	(1,154)
Net earnings attributable to common stockholders used in basic and diluted earnings per share calculation	$ 12,977	$ 29,964	$ 26,512	$ 48,275
Basic	49,615	46,733	48,309	46,727
Incremental shares from stock-based compensation	117	23	75	19
Incremental shares from ATM Program forward agreements	71		124
Incremental shares from the February 2023 Forward Offering	186		68
Diluted	49,989	46,756	48,576	46,746
Basic earnings per common share	$ 0.26	$ 0.64	$ 0.55	$ 1.03
Diluted earnings per common share	$ 0.26	$ 0.64	$ 0.55	$ 1.03