Partnership Organization And Formation	6 Months Ended
Partnership Organization And Formation	Jan. 31, 2020
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Organization And Formation	A. Partnership organization and formation Ferrellgas Partners, L.P. (“Ferrellgas Partners”) was formed April 19, 1994, and is a publicly traded limited partnership, owning an approximate 99% limited partner interest in Ferrellgas, L.P. (the "operating partnership"). Ferrellgas Partners and the operating partnership, collectively referred to as “Ferrellgas,” are both Delaware limited partnerships and are governed by their respective partnership agreements. Ferrellgas Partners was formed to acquire and hold a limited partner interest in the operating partnership. As of January 31, 2020, Ferrell Companies, Inc. ("Ferrell Companies") beneficially owns 22.8 million Ferrellgas Partners common units. Ferrellgas, Inc. (the "general partner"), a wholly-owned subsidiary of Ferrell Companies, has retained an approximate 1% general partner interest in Ferrellgas Partners and also holds an approximate 1% general partner interest in the operating partnership, representing an effective 2% general partner interest in Ferrellgas on a combined basis. As general partner, it performs all management functions required by Ferrellgas. Unless contractually provided for, creditors of the operating partnership have no recourse with regards to Ferrellgas Partners. Ferrellgas Partners is a holding entity that conducts no operations and has two subsidiaries, Ferrellgas Partners Finance Corp. and the operating partnership. Ferrellgas Partners owns a 100% equity interest in Ferrellgas Partners Finance Corp., whose only business activity is to act as the co-issuer and co-obligor of debt issued by Ferrellgas Partners. The operating partnership is the only operating subsidiary of Ferrellgas Partners. Ferrellgas is primarily engaged in the retail distribution of propane and related equipment sales. The propane distribution market is seasonal because propane is used primarily for heating in residential and commercial buildings. Ferrellgas serves residential, industrial/commercial, portable tank exchange, agricultural, wholesale and other customers in all 50 states, the District of Columbia, and Puerto Rico. Due to seasonality, the results of operations for the six months ended January 31, 2020 are not necessarily indicative of the results to be expected for the full fiscal year ending July 31, 2020. The condensed consolidated financial statements of Ferrellgas reflect all adjustments that are, in the opinion of management, necessary for a fair presentation of the interim periods presented. All adjustments to the condensed consolidated financial statements were of a normal recurring nature. The information included in this Quarterly Report on Form 10‑Q should be read in conjunction with (i) the section entitled “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and (ii) the consolidated financial statements and accompanying notes included in Ferrellgas’ Annual Report on Form 10‑K for fiscal 2019. Going Concern The accompanying condensed consolidated financial statements have been prepared on a going concern basis, which contemplates the continuity of operations, the realization of assets and the satisfaction of liabilities in the normal course of business. Ferrellgas Partners has $357.0 million in unsecured notes due June 15, 2020 that are classified as current in the condensed consolidated financial statements. The ability of Ferrellgas Partners to restructure, refinance or otherwise satisfy these notes is uncertain considering the level of other outstanding indebtedness. Given these concerns, Ferrellgas Partners believes there is substantial doubt about the entity’s ability to continue as a going concern. Ferrellgas has engaged Moelis & Company LLC as its financial advisor and the law firm of Squire Patton Boggs LLP to assist in our ongoing process to address our upcoming debt maturities. The outcome of Ferrellgas’ debt reduction strategy continues to remain uncertain. Additionally, see Note F – Debt below for further discussion of the outstanding debt.
Ferrellgas Partners Finance Corp. [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Organization And Formation	A. Formation Ferrellgas Partners Finance Corp. (the “Finance Corp.”), a Delaware corporation, was formed on March 28, 1996, and is a wholly-owned subsidiary of Ferrellgas Partners, L.P. (the “Partnership”). The condensed financial statements reflect all adjustments that are, in the opinion of management, necessary for a fair presentation of the interim periods presented. All adjustments to the condensed financial statements were of a normal recurring nature. The Finance Corp. has nominal assets, does not conduct any operations and has no employees. Going Concern The accompanying condensed financial statements have been prepared on a going concern basis, which contemplates the continuity of operations, the realization of assets and the satisfaction of liabilities in the normal course of business. As discussed in Note B – Contingencies and commitments, the Finance Corp serves as co-issuer and co-obligor for debt securities of the Partnership. The Partnership has $357.0 million aggregate principal amount of unsecured senior notes due June 15, 2020 that are classified as current. This obligation is only reported on the Partnership’s condensed consolidated balance sheet. The ability of the Partnership to restructure, refinance or otherwise satisfy these notes is uncertain considering the level of other outstanding indebtedness. Additionally, the Finance Corp. does not have sufficient cash reserves or the ability to generate sufficient future cash flows to satisfy its obligations as co-obligor of the debt securities of the Partnership. Given these concerns, the Finance Corp. believes there is substantial doubt about the entity’s ability to continue as a going concern. The Partnership has engaged Moelis & Company LLC as its financial advisor and the law firm of Squire Patton Boggs LLP to assist with the Partnership’s ongoing process to address its upcoming debt maturities. The outcome of the Partnership’s debt reduction strategy continues to remain uncertain.
Ferrellgas, L.P. [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Organization And Formation	A. Partnership organization and formation Ferrellgas, L.P. is a limited partnership that owns and operates propane distribution and related assets. Ferrellgas Partners, L.P. (“Ferrellgas Partners”), a publicly traded limited partnership, holds an approximate 99% limited partner interest in, and consolidates, Ferrellgas, L.P. Ferrellgas, Inc. (the “general partner”), a wholly-owned subsidiary of Ferrell Companies, Inc. (“Ferrell Companies”), holds an approximate 1% general partner interest in Ferrellgas, L.P. and performs all management functions required by Ferrellgas, L.P. Ferrellgas Partners and Ferrellgas, L.P., collectively referred to as “Ferrellgas,” are governed by their respective partnership agreements. These agreements contain specific provisions for the allocation of net earnings and loss to each of the partners for purposes of maintaining the partner capital accounts. Ferrellgas, L.P. owns a 100% equity interest in Ferrellgas Finance Corp., whose only business activity is to act as the co-issuer and co-obligor of debt issued by Ferrellgas, L.P. Ferrellgas, L.P. is primarily engaged in the retail distribution of propane and related equipment sales. The propane distribution market is seasonal because propane is used primarily for heating in residential and commercial buildings. Ferrellgas serves residential, industrial/commercial, portable tank exchange, agricultural, wholesale and other customers in all 50 states, the District of Columbia, and Puerto Rico. Due to seasonality, the results of operations for the six months ended January 31, 2020 are not necessarily indicative of the results to be expected for the full fiscal year ending July 31, 2020. The condensed consolidated financial statements of Ferrellgas, L.P. and subsidiaries reflect all adjustments that are, in the opinion of management, necessary for a fair presentation of the interim periods presented. All adjustments to the condensed consolidated financial statements were of a normal recurring nature. The information included in this Quarterly Report on Form 10‑Q should be read in conjunction with (i) the section entitled “Management’s Discussion and Analysis of Financial Condition and Results of Operations” and (ii) the consolidated financial statements and accompanying notes included in Ferrellgas, L.P.’s Annual Report on Form 10‑K for fiscal 2019. Going Concern The accompanying condensed consolidated financial statements have been prepared on a going concern basis, which contemplates the continuity of operations, the realization of assets and the satisfaction of liabilities in the normal course of business. Ferrellgas Partners has $357.0 million in unsecured notes due June 15, 2020 that are classified as current in its condensed consolidated financial statements. Ferrellgas Partners’ ability to restructure, refinance or otherwise satisfy these notes is directly impacted by the cash flows of Ferrellgas, L.P. The ability of Ferrellgas Partners to restructure or refinance these notes is uncertain considering the level of other outstanding indebtedness. In certain circumstances, the failure to repay the $357.0 million in unsecured notes on their contractual maturity date may result in an event of default under the operating partnership’s Senior Secured Credit Facility and the indentures governing the operating partnership’s outstanding notes. Given these concerns, Ferrellgas, L.P., believes there is substantial doubt about the entity’s ability to continue as a going concern. Ferrellgas has engaged Moelis & Company LLC as its financial advisor and the law firm of Squire Patton Boggs LLP to assist with its ongoing process to address its upcoming debt maturities. The outcome of Ferrellgas’ debt reduction strategy continues to remain uncertain. Additionally, see Note F – Debt below for further discussion of the outstanding debt.
Ferrellgas Finance Corp. [Member]
Subsidiary of Limited Liability Company or Limited Partnership [Line Items]
Organization And Formation	A. Formation Ferrellgas Finance Corp. (the “Finance Corp.”), a Delaware corporation, was formed on January 16, 2003, and is a wholly-owned subsidiary of Ferrellgas, L.P. (the “Partnership”). The condensed financial statements reflect all adjustments that are, in the opinion of management, necessary for a fair presentation of the interim periods presented. All adjustments to the condensed financial statements were of a normal recurring nature. The Finance Corp. has nominal assets, does not conduct any operations and has no employees. Going Concern The accompanying condensed financial statements have been prepared on a going concern basis, which contemplates the continuity of operations, the realization of assets and the satisfaction of liabilities in the normal course of business. As discussed in Note B – Contingencies and commitments, the Finance Corp serves as co-issuer and co-obligor for debt securities of the Partnership. Ferrellgas Partners has $357.0 million aggregate principal amount of unsecured senior notes due June 15, 2020 that are classified as current in its consolidated financial statements. This obligation is only reported on the consolidated balance sheet of Ferrellgas Partners. The ability of Ferrellgas Partners to restructure, refinance or otherwise satisfy these notes is uncertain considering the level of other outstanding indebtedness. In certain circumstances, the failure to repay the $357 million in unsecured notes on their contractual maturity date may result in an event of default under the Partnership’s Senior Secured Credit Facility and the indentures governing the Partnership’s outstanding notes. Additionally, the Finance Corp. does not have sufficient cash reserves or the ability to generate sufficient future cash flows to satisfy its obligations as co-obligor of the debt securities of the Partnership. Given these concerns, the Finance Corp. believes there is substantial doubt about the entity’s ability to continue as a going concern. The Partnership has engaged Moelis & Company LLC as its financial advisor and the law firm of Squire Patton Boggs LLP to assist with the Partnership’s ongoing process to address its upcoming debt maturities. The outcome of the Partnership’s debt reduction strategy continues to remain uncertain.