Net Income Per Common Share (EPS) - Schedule of Earnings Per Share Calculations (Detail) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020	Dec. 31, 2019
Earnings Per Share [Abstract]
Net Income	$ 16,948	$ 10,652	$ 28,327	$ 22,022
Weighted average number of common shares outstanding - basic	85,120	82,831	85,564	83,794
Effect of dilutive securities	3	45	2	41
Weighted average number of common shares outstanding - diluted	85,123	82,876	85,566	83,835
Basic earnings per share	$ 0.20	$ 0.13	$ 0.33	$ 0.26
Diluted earnings per share	$ 0.20	$ 0.13	$ 0.33	$ 0.26