Net Income Per Common Share - Schedule of reconciliation of the numerator and denominator used in the calculation of basic and diluted net income per common share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended				6 Months Ended
	Dec. 31, 2020	Sep. 30, 2020	Dec. 31, 2019	Sep. 30, 2019	Dec. 31, 2020	Dec. 31, 2019
Numerator:
Net income	$ 4,769	$ 402	$ 10,710	$ (9,356)	$ 5,171	$ 1,354
Denominator:
Weighted average shares outstanding - basic	92,025		89,517		91,609	89,145
Dilutive effect of potential common shares	1,328		762		998	950
Weighted average shares outstanding - diluted	93,353		90,279		92,607	90,095
Basic net income per share	$ 0.05		$ 0.12		$ 0.06	$ 0.02
Diluted net income per share	$ 0.05		$ 0.12		$ 0.06	$ 0.02