Accounts And Notes Receivable, Net And Accounts Receivable Securitization (Details) - USD ($)	Jul. 31, 2020	Jul. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable pledged as collateral	$ 103,703,000	$ 106,145,000
Accounts receivable, not pledged as collateral (including other reserves)	(825,000)	1,218,000
Notes receivable, current portion	12,648,000	2,660,000
Other	36,000	36,000
Less: Allowance for doubtful accounts	(14,124,000)	(2,463,000)
Accounts and notes receivable, net	101,438,000	107,596,000
Ferrellgas, L.P. [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable pledged as collateral	103,703,000	106,145,000
Accounts receivable, not pledged as collateral (including other reserves)	(825,000)	1,218,000
Notes receivable, current portion	12,648,000	2,660,000
Other	36,000	36,000
Less: Allowance for doubtful accounts	(14,124,000)	(2,463,000)
Accounts and notes receivable, net	$ 101,438,000	$ 107,596,000