Accounts And Notes Receivable, Net And Accounts Receivable Securitization (Details) - USD ($) $ in Thousands	Jan. 31, 2020	Jul. 31, 2019
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable pledged as collateral	$ 175,386	$ 106,145
Accounts receivable, not pledged as collateral (including other reserves)	1,604	1,218
Notes receivable, current portion	7,886	2,660
Other	33	36
Less: Allowance for doubtful accounts	(2,465)	(2,463)
Accounts and notes receivable, net	182,444	107,596
Ferrellgas, L.P. [Member]
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable pledged as collateral	175,386	106,145
Accounts receivable, not pledged as collateral (including other reserves)	1,604	1,218
Notes receivable, current portion	7,886	2,660
Other	33	36
Less: Allowance for doubtful accounts	(2,465)	(2,463)
Accounts and notes receivable, net	$ 182,444	$ 107,596