Supplemental financial statement information - Other Current Liabilities (Details) - USD ($) $ in Thousands	Oct. 31, 2023	Jul. 31, 2023
Supplemental Financial Statement Information [Line Items]
Accrued interest	$ 7,277	$ 29,011
Customer deposits and advances	43,496	36,226
Accrued payroll	20,315	35,075
Accrued insurance	16,476	15,256
Broker margin deposit liability	2,424	6,972
Accrued senior preferred units distributions	17,964	17,452
Other	67,289	57,038
Other current liabilities	175,241	197,030
Ferrellgas, L.P
Supplemental Financial Statement Information [Line Items]
Accrued interest	7,277	29,011
Customer deposits and advances	43,496	36,226
Accrued payroll	20,315	35,075
Accrued insurance	16,476	15,256
Broker margin deposit liability	2,424	6,972
Accrued senior preferred units distributions	17,964	17,452
Other	67,206	56,974
Other current liabilities	$ 175,158	$ 196,966