Supplemental financial statement information - Other Current Liabilities (Details) - USD ($) $ in Thousands	Oct. 31, 2022	Jul. 31, 2022
Supplemental Financial Statement Information [Line Items]
Accrued interest	$ 9,435	$ 29,703
Customer deposits and advances	42,212	33,189
Accrued payroll	16,246	29,717
Accrued insurance	15,202	16,114
Accrued senior preferred units distributions	17,966	17,466
Other	86,635	59,616
Other current liabilities	187,696	185,805
Ferrellgas, L.P
Supplemental Financial Statement Information [Line Items]
Accrued interest	9,435	29,703
Customer deposits and advances	42,212	33,189
Accrued payroll	16,246	29,717
Accrued insurance	15,202	16,114
Accrued senior preferred units distributions	17,966	17,466
Other	86,356	59,339
Other current liabilities	$ 187,417	$ 185,528