RESTRUCTURING, IMPAIRMENT AND OTHER CHARGES: Summary of Restructuring Activity (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Restructuring Reserve [Roll Forward]
Restructuring charges and adjustments	$ 2,962	$ 0	$ 3,701	$ 0
Employee-related reserves
Restructuring Reserve [Roll Forward]
Restructuring Reserve, at the end of the period	100		100
Continuing operations
Restructuring Reserve [Roll Forward]
Restructuring Reserve, at the beginning of the period			3,074
Restructuring charges and adjustments			3,701
Payments			(2,064)
Restructuring Reserve, at the end of the period	4,711		4,711
Continuing operations | Employee-related reserves
Restructuring Reserve [Roll Forward]
Restructuring Reserve, at the beginning of the period			47
Restructuring charges and adjustments			1,646
Payments			(1,551)
Restructuring Reserve, at the end of the period	142		142
Continuing operations | Lease accruals
Restructuring Reserve [Roll Forward]
Restructuring Reserve, at the beginning of the period			3,027
Restructuring charges and adjustments			2,055
Payments			(513)
Restructuring Reserve, at the end of the period	$ 4,569		$ 4,569