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Revenue Recognition - Additional Information (Detail) - USD ($) $ in Thousands	9 Months Ended	12 Months Ended
	Jan. 31, 2026	Apr. 30, 2025
Disaggregation of Revenue [Line Items]
Contract liabilities	$ 4,067	$ 6,073
Contract liability recognized as revenue percentage	100.00%	40.00%
Accounts receivable
Disaggregation of Revenue [Line Items]
Contract assets	$ 16,726	$ 12,693

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Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time.

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