Leases - Assumptions (Details)	Jan. 31, 2021
Lessee Disclosure [Abstract]
Operating Lease, Weighted Average Remaining Lease Term	5 years 1 month 6 days
Finance Lease, Weighted Average Remaining Lease Term	5 years 7 months 6 days
Operating Lease, Weighted Average Discount Rate, Percent	8.30%
Finance Lease, Weighted Average Discount Rate, Percent	8.70%
Ferrellgas, L.P. [Member]
Lessee Disclosure [Abstract]
Operating Lease, Weighted Average Remaining Lease Term	5 years 1 month 6 days
Finance Lease, Weighted Average Remaining Lease Term	5 years 7 months 6 days
Operating Lease, Weighted Average Discount Rate, Percent	8.30%
Finance Lease, Weighted Average Discount Rate, Percent	8.70%