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
	Jun. 30, 2019	Jun. 30, 2018
EARNINGS (LOSS) PER SHARE AND STOCKHOLDERS' EQUITY [Abstract]
Net earnings (loss) from continuing operations	$ (42,140)	$ (27,818)
Earnings from discontinued operations, net of tax	0	24,803
Net loss	$ (42,140)	$ (3,015)
Basic earnings (loss) per share:
Basic weighted-average shares outstanding (in shares)	68,906	76,935
Basic earnings (loss) per share from continuing operations (in dollars per share)	$ (0.61)	$ (0.36)
Basic earnings (loss) per share from discontinued operations (in dollars per share)	0	0.32
Basic earnings (loss) per share (in dollars per share)	$ (0.61)	$ (0.04)
Diluted earnings (loss) per share:
Basic weighted-average shares outstanding (in shares)	68,906	76,935
Dilutive effect of common stock options, warrants, and restricted stock as computed under the treasury stock method (in shares)	0	0
Diluted weighted-average shares outstanding	68,906	76,935
Diluted earnings (loss) per share from continuing operations (in dollars per share)	$ (0.61)	$ (0.36)
Diluted earnings (loss) per share from discontinued operations (in dollars per share)	0	0.32
Diluted earnings (loss), net per share (in USD per share)	$ (0.61)	$ (0.04)