Supplemental financial statement information - Prepaids and Other Assets Net (Details) - USD ($) $ in Thousands	Oct. 31, 2023	Jul. 31, 2023
Supplemental Financial Statement Information [Line Items]
Broker margin deposit assets	$ 13,918	$ 11,939
Other	29,107	17,196
Prepaid expenses and other current assets	43,025	29,135
Other assets, net	56,408	58,838
Ferrellgas, L.P
Supplemental Financial Statement Information [Line Items]
Broker margin deposit assets	13,918	11,939
Other	29,086	17,174
Prepaid expenses and other current assets	43,004	29,113
Other assets, net	$ 56,408	$ 58,838