Earnings Per Share - Weighted Average Shares Outstanding for Basic and Diluted Net Income Per Share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended
	Jun. 30, 2020	Jun. 30, 2019
Earnings per share — Basic:
Net income (loss)	$ (824)	$ 1,244
Weighted-average shares outstanding — Basic	66,296	65,015
Net income (loss) per common share — Basic	$ (0.01)	$ 0.02
Earnings per share — Diluted:
Net income (loss)	$ (824)	$ 1,244
Weighted-average shares outstanding — Basic	66,296	65,015
Effect of potentially dilutive securities		338
Weighted-average shares outstanding — Diluted	66,296	65,353
Net income (loss) per common share — Diluted	$ (0.01)	$ 0.02