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Common Shares (Details Textual) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Jul. 31, 2025	Jul. 31, 2024
Equity, Class of Treasury Stock [Line Items]
Payments to repurchase shares	$ 4.6	$ 2.6
Board Authorized Repurchased Plan
Equity, Class of Treasury Stock [Line Items]
Shares repurchased	0.0	0.0
Share Repurchase Program, Remaining Authorized, Number of Shares	1.1

Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock.

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