Divestitures - (Details Textual) shares in Millions, $ in Millions			6 Months Ended	7 Months Ended	10 Months Ended	12 Months Ended
	Nov. 15, 2023 USD ($) shares	Apr. 28, 2023 USD ($) numberOfEmployees shares	Apr. 30, 2024 USD ($)	Dec. 01, 2024 USD ($)	Mar. 02, 2025 USD ($)	Apr. 30, 2025 USD ($)	Apr. 30, 2024 USD ($)	Apr. 30, 2023 USD ($)	Mar. 03, 2025 numberOfEmployees	Dec. 02, 2024 numberOfEmployees	Nov. 01, 2023 numberOfEmployees
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from divestitures – net						$ 326.0	$ 56.3	$ 686.3
Gain (loss) on divestitures - net						(310.1)	(12.9)	(1,018.5)
Sweet Baked Snacks Value Brands
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from divestitures – net						34.6
Gain (loss) on divestitures - net						(44.2)
Disposal Group, Not Discontinued Operation, Number of Employees | numberOfEmployees									400
Sweet Baked Snacks Value Brands | Sweet Baked Snacks
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Annual net sales			$ 30.0		$ 48.4
Voortman
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from divestitures – net						291.4
Gain (loss) on divestitures - net						$ (265.9)
Disposal Group, Not Discontinued Operation, Number of Employees | numberOfEmployees										300
Voortman | Sweet Baked Snacks
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Annual net sales			$ 65.0	$ 86.3
Canada Condiment Business
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from divestitures – net							25.3
Gain (loss) on divestitures - net							(5.7)
Canada Condiment Business | Other
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Annual net sales							43.8	61.6
Sahale Snacks
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from divestitures – net							31.6
Gain (loss) on divestitures - net							(6.7)
Disposal Group, Not Discontinued Operation, Number of Employees | numberOfEmployees											100
Sahale Snacks | U.S. Retail Frozen Handheld and Spreads
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Annual net sales							$ 24.1	48.4
Pet Food Brands
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from divestitures – net								683.9
Gain (loss) on divestitures - net								(1,000.0)
Disposal Group, Not Discontinued Operation, Number of Employees | numberOfEmployees		1,100
Total proceeds from divestitures - cash and equity								1,200.0
Pet Food Brands | Post Holdings Inc.
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Proceeds from divestitures - equity | shares	5.4	5.4
Investment in equity securities	$ 460.9	$ 491.6						487.8
Proceeds from investment in equity securities	$ 466.3
Pet Food Brands | U.S. Retail Pet Foods
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Annual net sales								$ 1,500.0