RESTRUCTURING, IMPAIRMENT AND OTHER CHARGES - Schedule of Restructuring Activity (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023	Mar. 31, 2024	Mar. 31, 2021
Restructuring Reserve [Roll Forward]
Restructuring charges and adjustments	$ 397	$ 1,383	$ 575	$ 1,471
Employee-related reserves
Restructuring Reserve [Roll Forward]
Restructuring charges and adjustments			600		$ 4,200	$ 1,700
Continuing Operations
Restructuring Reserve [Roll Forward]
Restructuring reserve, at the beginning of the period			4,605
Restructuring charges and adjustments			577
Payments			(2,179)
Restructuring reserve, at the end of the period	3,003		3,003		4,605
Continuing Operations | Employee-related reserves
Restructuring Reserve [Roll Forward]
Restructuring reserve, at the beginning of the period			1,680
Restructuring charges and adjustments			577
Payments			(1,631)
Restructuring reserve, at the end of the period	626		626		1,680
Continuing Operations | Lease accruals
Restructuring Reserve [Roll Forward]
Restructuring reserve, at the beginning of the period			2,925
Restructuring charges and adjustments			0
Payments			(548)
Restructuring reserve, at the end of the period	$ 2,377		$ 2,377		$ 2,925