Leases - Assumptions (Details)	Apr. 30, 2020
Lessee Disclosure [Abstract]
Operating Lease, Weighted Average Remaining Lease Term	5 years 8 months 12 days
Finance Lease, Weighted Average Remaining Lease Term	5 years 9 months 18 days
Operating Lease, Weighted Average Discount Rate, Percent	8.20%
Finance Lease, Weighted Average Discount Rate, Percent	7.60%
Ferrellgas, L.P. [Member]
Lessee Disclosure [Abstract]
Operating Lease, Weighted Average Remaining Lease Term	5 years 8 months 12 days
Finance Lease, Weighted Average Remaining Lease Term	5 years 9 months 18 days
Operating Lease, Weighted Average Discount Rate, Percent	8.20%
Finance Lease, Weighted Average Discount Rate, Percent	7.60%