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REVENUE - Contract assets and contract liabilities (Details) - USD ($) $ in Thousands	Sep. 30, 2025	Mar. 31, 2025	Mar. 31, 2024
REVENUE
Contract assets	$ 10,132	$ 9,587
Contract liabilities	1,442	1,040	$ 2,104
Billed
REVENUE
Contract liabilities	16,531	18,720
Unbilled
REVENUE
Contract assets	24,274	26,059
Progress Payments
REVENUE
Contract assets	(14,142)	(16,472)
Obligations Satisfied
REVENUE
Contract liabilities	$ (16,129)	$ (19,784)

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