Supplemental financial statement information - Prepaids and Other Assets Net (Details) - USD ($) $ in Thousands	Oct. 31, 2022	Jul. 31, 2022
Supplemental Financial Statement Information [Line Items]
Broker margin deposit assets	$ 35,230	$ 12,338
Other	33,300	18,426
Prepaid expenses and other current assets	68,530	30,764
Ferrellgas, L.P
Supplemental Financial Statement Information [Line Items]
Broker margin deposit assets	35,230	12,338
Other	33,279	18,405
Prepaid expenses and other current assets	$ 68,509	$ 30,743