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Goodwill and Other Intangible Assets - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	Apr. 30, 2026	Apr. 30, 2025	Nov. 01, 2024
Goodwill [Line Items]
Goodwill	$ 12,487	$ 12,487
Goodwill, impairment loss	0
Amortization expense	1,500	$ 800
Impairment of intangible assets, indefinite-lived (excluding goodwill)	0
Nu Aire
Goodwill [Line Items]
Goodwill	12,487		$ 14,200
Other intangible assets	$ 18,600		$ 18,600

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