Leases - Cash Flow (Details) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2022	Jul. 31, 2021	Jul. 31, 2020
Operating cash flows, operating leases	$ 32,699	$ 34,895	$ 41,636
Operating cash flows, financing leases	9,475	3,396	1,060
Financing cash flows, financing leases	6,545	7,188	2,116
Ferrellgas, L.P. [Member]
Financing cash flows, financing leases	$ 6,545	$ 7,188	$ 2,116