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RESTRUCTURING CHARGES - Narrative (Details) $ in Thousands	3 Months Ended		6 Months Ended		12 Months Ended
	Sep. 30, 2025 USD ($)	Sep. 30, 2024 USD ($)	Sep. 30, 2025 USD ($)	Sep. 30, 2024 USD ($)	Mar. 31, 2025 USD ($) employee	Mar. 31, 2027 USD ($)	Mar. 31, 2026 USD ($)
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ 304	$ 2,409	$ 833	$ 18,972
One-time Termination Benefits
Restructuring Cost and Reserve [Line Items]
Restructuring charges			833
One-time Termination Benefits | Q1 FY25 VSP
Restructuring Cost and Reserve [Line Items]
Restructuring charges					$ 19,600
Number of employees terminated | employee					142
Restructuring charges			0
One-time Termination Benefits | Q3 FY25 Plan
Restructuring Cost and Reserve [Line Items]
Restructuring charges			800		$ 900
Restructuring charges			$ 833
One-time Termination Benefits | Q3 FY25 Plan | Forecast
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, expected cost						$ 100	$ 100

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