The amount of accrued interest paid in the extinguishment of the debt.

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For debt issued at premium or discount, the issuance price as a percent of par.

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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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Face (par) amount of the original debt instrument that was repurchased.

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Amount, after accumulated amortization, of debt discount.

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Amount, after accumulated amortization, of debt premium.

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The amount of debt issuance costs that were incurred during a noncash or partial noncash transaction.

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Weighted average interest rate of debt outstanding.

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Gross amount of debt extinguished.

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The effective interest rate at the end of the reporting period.

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The carrying value as of the balance sheet date of the current portion of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement.

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Amount of cash outflow for cost from early extinguishment and prepayment of debt. Includes, but is not limited to, third-party cost, premium paid, and other fee paid to lender directly for debt extinguishment or debt prepayment. Excludes accrued interest.

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The cash inflow from additional borrowings, net of cash paid to third parties in connection with debt origination.

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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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Write-off of amounts previously capitalized as debt issuance cost in an extinguishment of debt.

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Debt - Long-Term Debt Activity (Details) - USD ($) $ in Thousands	1 Months Ended		9 Months Ended	12 Months Ended
	Apr. 30, 2020	Jan. 31, 2017	Apr. 30, 2020	Jul. 31, 2014	Jul. 31, 2019	Apr. 30, 2019	Jun. 30, 2015	Mar. 31, 2011	Nov. 30, 2010	Apr. 30, 2010
Debt Instrument [Line Items]
Short-term borrowings	$ 0		$ 0		$ 43,000
Capitalized financing cost			8,863
Cash deposit against contingencies	$ 11,500		11,500
Non-cash write-offs of unamortized debt discount and related capitalized debt costs			$ 19,883
Fixed rate 6.5% Due 2021
Debt Instrument [Line Items]
Interest rate, as a percent	6.50%		6.50%			6.50%			6.50%
Aggregate principal amount	$ 500,000		$ 500,000						$ 500,000
Fixed rate 6.75% Due 2023
Debt Instrument [Line Items]
Interest rate, as a percent	6.75%		6.75%		6.75%		6.75%
Aggregate principal amount							$ 500,000
Fixed rate 6.75% Due 2022
Debt Instrument [Line Items]
Interest rate, as a percent	6.75%		6.75%	6.75%	6.75%
Unamortized premium	$ 1,107		$ 1,107		$ 1,633
Aggregate principal amount				$ 475,000
Fixed rate 8.625% Due 2020
Debt Instrument [Line Items]
Interest rate, as a percent	8.625%	8.625%	8.625%		8.625%
Issuance price as percent of par		96.00%
Unamortized discount	$ 0		$ 0		$ 1,319
Net proceeds		$ 166,100
Aggregate principal amount	$ 357,000	$ 175,000	$ 357,000
Fixed rate 10.00% Due 2025
Debt Instrument [Line Items]
Interest rate, as a percent	10.00%		10.00%
Unamortized premium	$ 3,719		$ 3,719
Aggregate principal amount	700,000		700,000
Notes payable Due 2020 to 2029
Debt Instrument [Line Items]
Unamortized discount	$ 483		$ 483		$ 711
Weighted average interest rate (as a percent)	9.50%		9.50%		10.70%
Aggregate principal amount										$ 280,000
Amount redeemed								$ 98,000
Senior Secured Credit Facility May 2018 [Member]
Debt Instrument [Line Items]
Outstanding borrowing repaid	$ 283,900
Accrued interest paid	3,100
Cash deposit against contingencies	11,500		$ 11,500
Prepayment premium paid	17,500
Non-cash write-offs of unamortized debt discount and related capitalized debt costs	19,900
Variable interest Revolving Facility
Debt Instrument [Line Items]
Short-term borrowings					$ 43,000
Interest rate at period end					9.47%
Debt Instrument Issued At Par [Member] \| Fixed rate 6.75% Due 2022
Debt Instrument [Line Items]
Aggregate principal amount				$ 325,000
Debt Instrument Issued At Par [Member] \| Fixed rate 10.00% Due 2025
Debt Instrument [Line Items]
Aggregate principal amount	$ 575,000		575,000
Debt Instrument Issued At Other Than Par [Member] \| Fixed rate 6.75% Due 2022
Debt Instrument [Line Items]
Issuance price as percent of par				104.00%
Aggregate principal amount				$ 150,000
Debt Instrument Issued At Other Than Par [Member] \| Fixed rate 10.00% Due 2025
Debt Instrument [Line Items]
Issuance price as percent of par	103.00%
Aggregate principal amount	$ 125,000		125,000
Ferrellgas, L.P. [Member]
Debt Instrument [Line Items]
Short-term borrowings	0		0		$ 43,000
Capitalized financing cost			8,863
Cash deposit against contingencies	$ 11,500		11,500
Non-cash write-offs of unamortized debt discount and related capitalized debt costs			$ 19,883
Ferrellgas, L.P. [Member] \| Fixed rate 6.5% Due 2021
Debt Instrument [Line Items]
Interest rate, as a percent	6.50%		6.50%		6.50%				6.50%
Aggregate principal amount	$ 500,000		$ 500,000						$ 500,000
Ferrellgas, L.P. [Member] \| Fixed rate 6.75% Due 2023
Debt Instrument [Line Items]
Interest rate, as a percent	6.75%		6.75%		6.75%		6.75%
Aggregate principal amount	$ 500,000		$ 500,000				$ 500,000
Ferrellgas, L.P. [Member] \| Fixed rate 6.75% Due 2022
Debt Instrument [Line Items]
Interest rate, as a percent	6.75%		6.75%	6.75%	6.75%
Unamortized premium	$ 1,107		$ 1,107		$ 1,633
Aggregate principal amount				$ 475,000
Ferrellgas, L.P. [Member] \| Fixed rate 8.625% Due 2020
Debt Instrument [Line Items]
Aggregate principal amount	$ 357,000		$ 357,000
Ferrellgas, L.P. [Member] \| Fixed rate 10.00% Due 2025
Debt Instrument [Line Items]
Interest rate, as a percent	10.00%		10.00%
Unamortized premium	$ 3,719		$ 3,719
Aggregate principal amount	700,000		700,000
Ferrellgas, L.P. [Member] \| Notes payable Due 2020 to 2029
Debt Instrument [Line Items]
Unamortized discount	$ 483		$ 483		$ 711
Weighted average interest rate (as a percent)	9.50%		9.50%		10.70%
Ferrellgas, L.P. [Member] \| Senior Secured Credit Facility May 2018 [Member]
Debt Instrument [Line Items]
Outstanding borrowing repaid	$ 283,900
Accrued interest paid	3,100
Cash deposit against contingencies	11,500		$ 11,500
Prepayment premium paid	17,500
Non-cash write-offs of unamortized debt discount and related capitalized debt costs	19,900
Ferrellgas, L.P. [Member] \| Variable interest Revolving Facility
Debt Instrument [Line Items]
Short-term borrowings					$ 43,000
Interest rate at period end					9.47%
Ferrellgas, L.P. [Member] \| Debt Instrument Issued At Par [Member] \| Fixed rate 6.75% Due 2022
Debt Instrument [Line Items]
Aggregate principal amount				$ 325,000
Ferrellgas, L.P. [Member] \| Debt Instrument Issued At Par [Member] \| Fixed rate 10.00% Due 2025
Debt Instrument [Line Items]
Aggregate principal amount	$ 575,000		575,000
Ferrellgas, L.P. [Member] \| Debt Instrument Issued At Other Than Par [Member] \| Fixed rate 6.75% Due 2022
Debt Instrument [Line Items]
Issuance price as percent of par				104.00%
Aggregate principal amount				$ 150,000
Ferrellgas, L.P. [Member] \| Debt Instrument Issued At Other Than Par [Member] \| Fixed rate 10.00% Due 2025
Debt Instrument [Line Items]
Issuance price as percent of par	103.00%
Aggregate principal amount	$ 125,000		$ 125,000