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

No definition available.

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=119993939&loc=d3e28551-108399

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 835
-SubTopic 30
-Section 55
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=114775985&loc=d3e28878-108400

+ Details

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- Definition

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

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.5-02.22(a)(1))
-URI http://asc.fasb.org/extlink&oid=120391452&loc=d3e13212-122682

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- Definition

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.

+ References

No definition available.

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- Definition

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

+ References

No definition available.

+ Details

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Balance Type:	debit
Period Type:	instant

- Definition

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

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 14
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121586364&loc=d3e3255-108585

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Debt - Long-Term Debt Activity (Details) - USD ($) $ in Millions	1 Months Ended		12 Months Ended
	Apr. 30, 2020	Jan. 31, 2017	Jul. 31, 2014	Jan. 31, 2021	Jul. 31, 2020	Jun. 30, 2015	Mar. 31, 2011	Nov. 30, 2010	Apr. 30, 2010
Fixed rate, 6.5%, due 2021
Debt Instrument [Line Items]
Aggregate principal amount								$ 500.0
Interest rate, as a percent				6.50%	6.50%			6.50%
Fixed rate, 6.75%, due 2023
Debt Instrument [Line Items]
Aggregate principal amount						$ 500.0
Interest rate, as a percent				6.75%	6.75%	6.75%
Fixed rate, 6.75%, due 2022
Debt Instrument [Line Items]
Aggregate principal amount			$ 475.0
Interest rate, as a percent			6.75%	6.75%	6.75%
Fixed rate, 8.625%, due 2020
Debt Instrument [Line Items]
Aggregate principal amount		$ 175.0
Interest rate, as a percent		8.625%		8.625%	8.625%
Issuance price as percent of par		96.00%
Net proceeds		$ 166.1
Fixed rate 10.00% Due 2025
Debt Instrument [Line Items]
Aggregate principal amount	$ 700.0
Interest rate, as a percent	10.00%			10.00%
Notes payable Due 2021 to 2029
Debt Instrument [Line Items]
Aggregate principal amount									$ 280.0
Amount redeemed							$ 98.0
Debt Instrument Issued At Par [Member] \| Fixed rate, 6.75%, due 2022
Debt Instrument [Line Items]
Aggregate principal amount			$ 325.0
Debt Instrument Issued At Par [Member] \| Fixed rate 10.00% Due 2025
Debt Instrument [Line Items]
Aggregate principal amount	$ 575.0
Debt Instrument Issued At Other Than Par [Member] \| Fixed rate, 6.75%, due 2022
Debt Instrument [Line Items]
Aggregate principal amount			$ 150.0
Issuance price as percent of par			104.00%
Debt Instrument Issued At Other Than Par [Member] \| Fixed rate 10.00% Due 2025
Debt Instrument [Line Items]
Aggregate principal amount	$ 125.0
Issuance price as percent of par	103.00%
Ferrellgas, L.P. [Member] \| Fixed rate, 6.5%, due 2021
Debt Instrument [Line Items]
Aggregate principal amount				$ 500.0				$ 500.0
Interest rate, as a percent				6.50%	6.50%			6.50%
Ferrellgas, L.P. [Member] \| Fixed rate, 6.75%, due 2023
Debt Instrument [Line Items]
Aggregate principal amount				$ 500.0		$ 500.0
Interest rate, as a percent				6.75%	6.75%	6.75%
Ferrellgas, L.P. [Member] \| Fixed rate, 6.75%, due 2022
Debt Instrument [Line Items]
Aggregate principal amount			$ 475.0
Interest rate, as a percent			6.75%	6.75%	6.75%
Ferrellgas, L.P. [Member] \| Fixed rate 10.00% Due 2025
Debt Instrument [Line Items]
Aggregate principal amount	$ 700.0
Interest rate, as a percent	10.00%			10.00%
Ferrellgas, L.P. [Member] \| Debt Instrument Issued At Par [Member] \| Fixed rate, 6.75%, due 2022
Debt Instrument [Line Items]
Aggregate principal amount			$ 325.0
Ferrellgas, L.P. [Member] \| Debt Instrument Issued At Par [Member] \| Fixed rate 10.00% Due 2025
Debt Instrument [Line Items]
Aggregate principal amount	$ 575.0
Ferrellgas, L.P. [Member] \| Debt Instrument Issued At Other Than Par [Member] \| Fixed rate, 6.75%, due 2022
Debt Instrument [Line Items]
Aggregate principal amount			$ 150.0
Issuance price as percent of par			104.00%
Ferrellgas, L.P. [Member] \| Debt Instrument Issued At Other Than Par [Member] \| Fixed rate 10.00% Due 2025
Debt Instrument [Line Items]
Aggregate principal amount	$ 125.0
Issuance price as percent of par	103.00%