Common Shares (Details 1) $ / shares in Units, $ in Millions		12 Months Ended
	Nov. 07, 2023 USD ($) shares	Apr. 30, 2025 USD ($) votes_per_share shares	Apr. 30, 2024 USD ($) shares	Apr. 30, 2023 USD ($) shares	Sep. 08, 2023 $ / shares shares	Mar. 02, 2023 shares
Stockholders' Equity Note [Abstract]
Number of votes each holder of a common share outstanding is entitled | votes_per_share		1
Equity, Class of Treasury Stock [Line Items]
Shares authorized to be repurchased, shares		1,100,000
Payments for shares repurchased | $		$ 3.3	$ 372.8	$ 367.5
Hostess Brands
Equity, Class of Treasury Stock [Line Items]
Business Acquisition, Equity Interest Issued or Issuable, Number of Shares	4,000,000.0
Business Acquisition, Equity Interest Issued or Issuable, Value Assigned | $	$ 450.2
Business Acquisition, Price Paid Per Share in Cash | $ / shares					$ 30.00
Business Acquisition, Equity Interest Issued or Issuable, Fraction of Common Shares Issued					0.03002
Business Acquisition, Equity Interest Issued or Issuable, Value of Price Per Share Paid | $ / shares					$ 4.25
Board Authorized Repurchased Plan
Equity, Class of Treasury Stock [Line Items]
Shares remaining for repurchase, shares				3,500,000
Shares authorized to be repurchased, shares						2,400,000
Shares repurchased during period, shares			2,400,000
Payments for shares repurchased | $			$ 362.8
Share Repurchase Program, Excise Tax, Payable | $			$ 3.6
Share Repurchase Program, Excise Tax | $		$ 6.7