LOSS PER SHARE AND STOCKHOLDERS’ EQUITY:   Reconciliation of basic and diluted earnings (loss) per share (Details) - USD ($) $ / shares in Units, shares in Thousands, $ in Thousands	3 Months Ended		9 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020
Basic loss per share:
Net loss	$ (15,375)	$ (11,725)	$ (4,441)	$ (57,421)
Basic weighted-average shares outstanding (in shares)	68,190	66,523	68,187	66,034
Basic loss per share (in USD per share)	$ (0.23)	$ (0.18)	$ (0.07)	$ (0.87)
Diluted loss per share:
Basic weighted-average shares outstanding (in shares)	68,190	66,523	68,187	66,034
Dilutive effect of common stock options and restricted stock as computed under the treasury stock method (in shares)	0	0	0	0
Diluted weighted-average shares outstanding (in shares)	68,190	66,523	68,187	66,034
Diluted loss per share (in USD per share)	$ (0.23)	$ (0.18)	$ (0.07)	$ (0.87)