Accounts And Notes Receivable, Net And Accounts Receivable Securitization (Details) - USD ($)	Jul. 31, 2019	Jul. 31, 2018
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable pledged as collateral	$ 106,145,000	$ 120,079,000
Accounts receivable, not pledged as collateral (including other reserves)	1,218,000	8,272,000
Notes receivable, current portion	2,660,000	132,000
Other	36,000	26,000
Less: Allowance for doubtful accounts	(2,463,000)	(2,455,000)
Accounts and notes receivable, net	107,596,000	126,054,000
Ferrellgas, L.P. [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable pledged as collateral	106,145,000	120,079,000
Accounts receivable, not pledged as collateral (including other reserves)	1,218,000	8,272,000
Notes receivable, current portion	2,660,000	132,000
Other	36,000	26,000
Less: Allowance for doubtful accounts	(2,463,000)	(2,455,000)
Accounts and notes receivable, net	$ 107,596,000	$ 126,054,000