Amount of assets pledged to secure a debt instrument.

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Face (par) amount of debt instrument at time of issuance.

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Contractual interest rate for funds borrowed, under the debt agreement.

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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The total amount of the contingent obligation under letters of credit outstanding as of the reporting date.

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Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding).

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Carrying value as of the balance sheet date, including the current and noncurrent portions, of collateralized debt obligations (with maturities initially due after one year or beyond the operating cycle, if longer). Such obligations include mortgage loans, chattel loans, and any other borrowings secured by assets of the borrower.

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The amount of an asset, typically cash, provided to a counterparty to provide certain assurance of performance by the entity pursuant to the terms of a written or oral agreement, such as a lease.

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Debt - Secured Senior Note and Credit Facility (Details) - USD ($)	Oct. 31, 2020	Jul. 31, 2020	Jun. 07, 2020	Apr. 30, 2020	Jan. 31, 2017	Jul. 31, 2014
Debt Instrument [Line Items]
Cash deposit against contingencies	$ 11,500,000	$ 11,500,000
Letters of credit outstanding	127,100,000	126,000,000
Cash pledged as collateral for letters of credit	79,400,000	78,200,000
Accounts Receivable Securitization Facility [Member]
Debt Instrument [Line Items]
Aggregate principal amount	0	0
Available borrowing capacity	26,000,000	11,000,000
Letters of credit outstanding	$ 50,000,000	$ 50,000,000
Fixed Rate Six Point Seven Five Due Two Thousand twenty Two [Member]
Debt Instrument [Line Items]
Aggregate principal amount						$ 475,000,000
Interest rate, as a percent	6.75%	6.75%				6.75%
Fixed rate, 8.625%, due 2020
Debt Instrument [Line Items]
Aggregate principal amount	$ 357,000,000				$ 175,000,000
Interest rate, as a percent	8.625%	8.625%	8.625%		8.625%
Fixed rate 10.00% Due 2025
Debt Instrument [Line Items]
Aggregate principal amount				$ 700,000,000
Interest rate, as a percent	10.00%			10.00%
Secured Debt	$ 703,424,000	$ 703,573,000
Ferrellgas, L.P. [Member]
Debt Instrument [Line Items]
Cash deposit against contingencies	11,500,000	11,500,000
Cash pledged as collateral for letters of credit	79,400,000	78,200,000
Ferrellgas, L.P. [Member] \| Accounts Receivable Securitization Facility [Member]
Debt Instrument [Line Items]
Aggregate principal amount	0	0
Available borrowing capacity	26,000,000	11,000,000
Letters of credit outstanding	50,000,000	50,000,000
Ferrellgas, L.P. [Member] \| Letter of Credit [Member]
Debt Instrument [Line Items]
Letters of credit outstanding	127,100,000	126,000,000
Cash pledged as collateral for letters of credit	$ 79,400,000	$ 78,200,000
Ferrellgas, L.P. [Member] \| Fixed Rate Six Point Seven Five Due Two Thousand twenty Two [Member]
Debt Instrument [Line Items]
Aggregate principal amount						$ 475,000,000
Interest rate, as a percent	6.75%	6.75%				6.75%
Ferrellgas, L.P. [Member] \| Fixed rate, 8.625%, due 2020
Debt Instrument [Line Items]
Aggregate principal amount	$ 357,000,000
Interest rate, as a percent			8.625%
Ferrellgas, L.P. [Member] \| Fixed rate 10.00% Due 2025
Debt Instrument [Line Items]
Aggregate principal amount				$ 700,000,000
Interest rate, as a percent	10.00%			10.00%
Secured Debt	$ 703,424,000	$ 703,573,000