Accounts And Notes Receivable, Net And Accounts Receivable Securitization (Details) - USD ($) $ in Thousands	Oct. 31, 2020	Jul. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable pledged as collateral	$ 120,261	$ 103,703
Accounts receivable, not pledged as collateral (including other reserves)	823	(825)
Notes receivable, current portion	15,148	12,648
Other	37	36
Less: Allowance for expected credit losses	(16,781)	(14,124)
Accounts and notes receivable, net	119,488	101,438
Ferrellgas, L.P. [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable pledged as collateral	120,261	103,703
Accounts receivable, not pledged as collateral (including other reserves)	823	(825)
Notes receivable, current portion	15,148	12,648
Other	37	36
Less: Allowance for expected credit losses	(16,781)	(14,124)
Accounts and notes receivable, net	$ 119,488	$ 101,438