Special Project Costs (Details) - Hostess Brands - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Oct. 31, 2025	Oct. 31, 2024	Oct. 31, 2025	Oct. 31, 2024
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost	$ 0.7	$ 15.1	$ 1.1	$ 27.1
Restructuring and related cost, cost incurred to date	186.0		186.0
Transaction Costs
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost	0.0	0.0	0.0	0.0
Restructuring and related cost, cost incurred to date	99.0		99.0
Employee-related costs
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost	0.1	4.4	0.4	7.0
Restructuring and related cost, cost incurred to date	43.4		43.4
Other transition and termination costs
Restructuring Cost and Reserve [Line Items]
Restructuring and related cost, incurred cost	0.6	$ 10.7	0.7	$ 20.1
Restructuring and related cost, cost incurred to date	$ 43.6		$ 43.6