Subsequent Events	3 Months Ended
Subsequent Events	Oct. 31, 2020
Subsequent Event [Line Items]
Subsequent Events	N. Subsequent events Ferrellgas has evaluated events and transactions occurring after the balance sheet date through the date Ferrellgas’ condensed consolidated financial statements were issued and concluded that there were no events or transactions occurring during this period that require recognition or disclosure in its condensed consolidated financial statements, except as follows. Transaction Support Agreement On December 10, 2020, Ferrellgas Partners, Ferrellgas Partners Finance Corp., the operating partnership and additional Ferrellgas entities (collectively, the “Company Parties”) entered into a Transaction Support Agreement (the “TSA”) with certain holders of, or investment advisors, sub-advisors, or managers of discretionary accounts that hold, claims (collectively, the “Consenting Noteholders”) arising under, derived from or based upon the indenture governing the Ferrellgas Partners Notes due June 15, 2020. As of December 10, 2020, the Consenting Noteholders hold or represent, in the aggregate, approximately 74% of the outstanding amount of the Ferrellgas Partners Notes due June 15, 2020. The TSA sets forth (i) a restructuring process to satisfy the obligations of Ferrellgas Partners and Ferrellgas Partners Finance Corp. under the Ferrellgas Partners Notes due June 15, 2020 (the “Ferrellgas Partners Transactions”), which will be effectuated through pre-packaged voluntary cases (the “Chapter 11 Cases”) under chapter 11 of title 11 of the United States Code filed by only Ferrellgas Partners and Ferrellgas Partners Finance Corp. and the confirmation of a pre-packaged plan of reorganization for Ferrellgas Partners and Ferrellgas Partners Finance Corp., and (ii) a refinancing process of the operating partnership, including but not limited to, replacement of the operating partnership’s existing unsecured notes due 2021, 2022 and 2023 (the “operating partnership Transactions” and, together with the Ferrellgas Partners Transactions, the “Transactions”), which will be consummated on the effective date (the “Effective Date”) of Ferrellgas Partners’ plan of reorganization that implements the Ferrellgas Partners Transactions (the “Plan”) and will close simultaneously with the Ferrellgas Partners Transactions effectuated under the Plan. Generally, the TSA and the Transactions contemplate, among other things, the transactions and certain changes to the capital structure and governance of the Company Parties as described in more detail in the TSA. Pursuant to the TSA, and subject to the terms and conditions thereof, the parties thereto have agreed to support, act in good faith and take all steps reasonably necessary and desirable to implement and consummate the Transactions until the TSA is terminated. The Consenting Noteholders have agreed, among other things, (i) to forbear from taking actions with respect to any default or event of default by the Company Parties under the indenture governing the Ferrellgas Partners Notes which arises solely as a result of the failure to make payments of the principal due on the Ferrellgas Partners Notes, and (ii) to vote in favor of any matter requiring approval to the extent necessary to implement the Transactions and the Plan. The TSA contains certain milestones relating to the commencement of the solicitation of acceptances of the Plan (the “Solicitation”), the refinancing process and the Chapter 11 Cases, which include the dates by which Ferrellgas Partners is required to commence the Solicitation and, thereafter, commence the Chapter 11 Cases or obtain certain approval orders of the United States Bankruptcy Court for the District of Delaware. In addition, the milestones include the obligation of Ferrellgas Partners and Ferrellgas Partners Finance Corp. to emerge from chapter 11 protection no later than April 4, 2021, unless that deadline is extended pursuant to the terms of the TSA. The TSA also provides that the TSA may be terminated by the Required Consenting Noteholders (as defined therein) with respect to the Consenting Noteholders or by any Company Party with respect to the Company Parties upon the occurrence of certain events set forth therein. In particular, the Company Parties may terminate the TSA in the event the governing body of any Company Party determines, after consulting with counsel, (i) that continuing to pursue any of the Transactions in the manner contemplated by the TSA would be inconsistent with the exercise of its contractual or fiduciary duties or applicable law or (ii) in the exercise of its contractual or fiduciary duties, to pursue an alternative transaction proposal. There is no assurance that the restructuring and refinancing processes described in the TSA will be consummated.
Ferrellgas Partners Finance Corp. [Member]
Subsequent Event [Line Items]
Subsequent Events	C. Subsequent events The Finance Corp. has evaluated events and transactions occurring after the balance sheet date through the date the Finance Corp.’s condensed consolidated financial statements were issued and concluded that there were no events or transactions occurring during this period that require recognition or disclosure in its condensed consolidated financial statements, except as follows. Transaction Support Agreement On December 10, 2020, the Partnership, Finance Corp., the operating partnership and additional Ferrellgas entities (collectively, the “Company Parties”) entered into a Transaction Support Agreement (the “TSA”) with certain holders of, or investment advisors, sub-advisors, or managers of discretionary accounts that hold, claims (collectively, the “Consenting Noteholders”) arising under, derived from or based upon the indenture governing the Ferrellgas Partners Notes due June 15, 2020. As of December 10, 2020, the Consenting Noteholders hold or represent, in the aggregate, approximately 74% of the outstanding amount of the Ferrellgas Partners Notes due June 15, 2020. The TSA sets forth (i) a restructuring process to satisfy the obligations of the Partnership and the Finance Corp. under the Ferrellgas Partners Notes due June 15, 2020 (the “Ferrellgas Partners Transactions”), which will be effectuated through pre-packaged voluntary cases (the “Chapter 11 Cases”) under chapter 11 of title 11 of the United States Code filed by only the Partnership and the Finance Corp. and the confirmation of a pre-packaged plan of reorganization for the Partnership and the Finance Corp., and (ii) a refinancing process of the operating partnership and Ferrellgas Finance Corp., including but not limited to, replacement of the operating partnership’s and Ferrellgas Finance Corp.’s existing unsecured notes due 2021, 2022 and 2023 (the “operating partnership Transactions” and, together with the Ferrellgas Partners Transactions, the “Transactions”), which will be consummated on the effective date (the “Effective Date”) of the Partnership’s and the Finance Corp.’s plan of reorganization that implements the Ferrellgas Partners Transactions (the “Plan”) and will close simultaneously with the Ferrellgas Partners Transactions effectuated under the Plan. Generally, the TSA and the Transactions contemplate, among other things, the transactions and certain changes to the capital structure and governance of the Company Parties as described in more detail in the TSA. Pursuant to the TSA, and subject to the terms and conditions thereof, the parties thereto have agreed to support, act in good faith and take all steps reasonably necessary and desirable to implement and consummate the Transactions until the TSA is terminated. The Consenting Noteholders have agreed, among other things, (i) to forbear from taking actions with respect to any default or event of default by the Company Parties under the indenture governing the Ferrellgas Partners Notes which arises solely as a result of the failure to make payments of the principal due on the Ferrellgas Partners Notes, and (ii) to vote in favor of any matter requiring approval to the extent necessary to implement the Transactions and the Plan. The TSA contains certain milestones relating to the commencement of the solicitation of acceptances of the Plan (the “Solicitation”), the refinancing process and the Chapter 11 Cases, which include the dates by which the Partnership and the Finance Corp. are required to commence the Solicitation and, thereafter, commence the Chapter 11 Cases or obtain certain approval orders of the United States Bankruptcy Court for the District of Delaware. In addition, the milestones include the obligation of the Partnership and the Finance Corp. to emerge from chapter 11 protection no later than April 4, 2021, unless that deadline is extended pursuant to the terms of the TSA. The TSA also provides that the TSA may be terminated by the Required Consenting Noteholders (as defined therein) with respect to the Consenting Noteholders or by any Company Party with respect to the Company Parties upon the occurrence of certain events set forth therein. In particular, the Company Parties may terminate the TSA in the event the governing body of any Company Party determines, after consulting with counsel, (i) that continuing to pursue any of the Transactions in the manner contemplated by the TSA would be inconsistent with the exercise of its contractual or fiduciary duties or applicable law or (ii) in the exercise of its contractual or fiduciary duties, to pursue an alternative transaction proposal. There is no assurance that the restructuring and refinancing processes described in the TSA will be consummated.
Ferrellgas, L.P. [Member]
Subsequent Event [Line Items]
Subsequent Events	N. Subsequent events Ferrellgas, L.P. has evaluated events and transactions occurring after the balance sheet date through the date Ferrellgas, L.P.’s condensed consolidated financial statements were issued and concluded that there were no events or transactions occurring during this period that require recognition or disclosure in its condensed consolidated financial statements, except as follows. Transaction Support Agreement On December 10, 2020, Ferrellgas Partners, Ferrellgas Partners Finance Corp., Ferrellgas, L.P. and additional Ferrellgas entities (collectively, the “Company Parties”) entered into a Transaction Support Agreement (the “TSA”) with certain holders of, or investment advisors, sub-advisors, or managers of discretionary accounts that hold, claims (collectively, the “Consenting Noteholders”) arising under, derived from or based upon the indenture governing the Ferrellgas Partners Notes due June 15, 2020. As of December 10, 2020, the Consenting Noteholders hold or represent, in the aggregate, approximately 74% of the outstanding amount of the Ferrellgas Partners Notes due June 15, 2020. The TSA sets forth (i) a restructuring process to satisfy the obligations of Ferrellgas Partners and Ferrellgas Partners Finance Corp. under the Ferrellgas Partners Notes due June 15, 2020 (the “Ferrellgas Partners Transactions”), which will be effectuated through pre-packaged voluntary cases (the “Chapter 11 Cases”) under chapter 11 of title 11 of the United States Code filed by only Ferrellgas Partners and Ferrellgas Partners Finance Corp. and the confirmation of a pre-packaged plan of reorganization for Ferrellgas Partners and Ferrellgas Partners Finance Corp., and (ii) a refinancing process of Ferrellgas, L.P., including but not limited to, replacement of Ferrellgas, L.P.’s existing unsecured notes due 2021, 2022 and 2023 (the “operating partnership Transactions” and, together with the Ferrellgas Partners Transactions, the “Transactions”), which will be consummated on the effective date (the “Effective Date”) of Ferrellgas Partners’ plan of reorganization that implements the Ferrellgas Partners Transactions (the “Plan”) and will close simultaneously with the Ferrellgas Partners Transactions effectuated under the Plan. Generally, the TSA and the Transactions contemplate, among other things, the transactions and certain changes to the capital structure and governance of the Company Parties as described in more detail in the TSA. Pursuant to the TSA, and subject to the terms and conditions thereof, the parties thereto have agreed to support, act in good faith and take all steps reasonably necessary and desirable to implement and consummate the Transactions until the TSA is terminated. The Consenting Noteholders have agreed, among other things, (i) to forbear from taking actions with respect to any default or event of default by the Company Parties under the indenture governing the Ferrellgas Partners Notes which arises solely as a result of the failure to make payments of the principal due on the Ferrellgas Partners Notes, and (ii) to vote in favor of any matter requiring approval to the extent necessary to implement the Transactions and the Plan. The TSA contains certain milestones relating to the commencement of the solicitation of acceptances of the Plan (the “Solicitation”), the refinancing process and the Chapter 11 Cases, which include the dates by which Ferrellgas Partners is required to commence the Solicitation and, thereafter, commence the Chapter 11 Cases or obtain certain approval orders of the United States Bankruptcy Court for the District of Delaware. In addition, the milestones include the obligation of Ferrellgas Partners and Ferrellgas Partners Finance Corp. to emerge from chapter 11 protection no later than April 4, 2021, unless that deadline is extended pursuant to the terms of the TSA. The TSA also provides that the TSA may be terminated by the Required Consenting Noteholders (as defined therein) with respect to the Consenting Noteholders or by any Company Party with respect to the Company Parties upon the occurrence of certain events set forth therein. In particular, the Company Parties may terminate the TSA in the event the governing body of any Company Party determines, after consulting with counsel, (i) that continuing to pursue any of the Transactions in the manner contemplated by the TSA would be inconsistent with the exercise of its contractual or fiduciary duties or applicable law or (ii) in the exercise of its contractual or fiduciary duties, to pursue an alternative transaction proposal. There is no assurance that the restructuring and refinancing processes described in the TSA will be consummated.
Ferrellgas Finance Corp. [Member]
Subsequent Event [Line Items]
Subsequent Events	C. Subsequent events The Partnership has evaluated events and transactions occurring after the balance sheet date through the date the Partnership’s condensed consolidated financial statements were issued and concluded that there were no events or transactions occurring during this period that require recognition or disclosure in its condensed consolidated financial statements, except as follows. Transaction Support Agreement On December 10, 2020, Ferrellgas Partners, Ferrellgas Partners Finance Corp., the Partnership, Finance Corp. and additional Ferrellgas entities (collectively, the “Company Parties”) entered into a Transaction Support Agreement (the “TSA”) with certain holders of, or investment advisors, sub-advisors, or managers of discretionary accounts that hold, claims (collectively, the “Consenting Noteholders”) arising under, derived from or based upon the indenture governing the Ferrellgas Partners Notes due June 15, 2020. As of December 10, 2020, the Consenting Noteholders hold or represent, in the aggregate, approximately 74% of the outstanding amount of the Ferrellgas Partners Notes due June 15, 2020. The TSA sets forth (i) a restructuring process to satisfy the obligations of Ferrellgas Partners and Ferrellgas Partners Finance Corp. under the Ferrellgas Partners Notes due June 15, 2020 (the “Ferrellgas Partners Transactions”), which will be effectuated through pre-packaged voluntary cases (the “Chapter 11 Cases”) under chapter 11 of title 11 of the United States Code filed by only Ferrellgas Partners and Ferrellgas Partners Finance Corp. and the confirmation of a pre-packaged plan of reorganization for Ferrellgas Partners and Ferrellgas Partners Finance Corp., and (ii) a refinancing process of the Partnership and the Finance Corp., including but not limited to, replacement of the Partnership’s and the Finance Corp.’s existing unsecured notes due 2021, 2022 and 2023 (the “operating partnership Transactions” and, together with the Ferrellgas Partners Transactions, the “Transactions”), which will be consummated on the effective date (the “Effective Date”) of Ferrellgas Partners’ plan of reorganization that implements the Ferrellgas Partners Transactions (the “Plan”) and will close simultaneously with the Ferrellgas Partners Transactions effectuated under the Plan. Generally, the TSA and the Transactions contemplate, among other things, the transactions and certain changes to the capital structure and governance of the Company Parties as described in more detail in the TSA. Pursuant to the TSA, and subject to the terms and conditions thereof, the parties thereto have agreed to support, act in good faith and take all steps reasonably necessary and desirable to implement and consummate the Transactions until the TSA is terminated. The Consenting Noteholders have agreed, among other things, (i) to forbear from taking actions with respect to any default or event of default by the Company Parties under the indenture governing the Ferrellgas Partners Notes which arises solely as a result of the failure to make payments of the principal due on the Ferrellgas Partners Notes, and (ii) to vote in favor of any matter requiring approval to the extent necessary to implement the Transactions and the Plan. The TSA contains certain milestones relating to the commencement of the solicitation of acceptances of the Plan (the “Solicitation”), the refinancing process and the Chapter 11 Cases, which include the dates by which Ferrellgas Partners is required to commence the Solicitation and, thereafter, commence the Chapter 11 Cases or obtain certain approval orders of the United States Bankruptcy Court for the District of Delaware. In addition, the milestones include the obligation of Ferrellgas Partners and Ferrellgas Partners Finance Corp. to emerge from chapter 11 protection no later than April 4, 2021, unless that deadline is extended pursuant to the terms of the TSA. The TSA also provides that the TSA may be terminated by the Required Consenting Noteholders (as defined therein) with respect to the Consenting Noteholders or by any Company Party with respect to the Company Parties upon the occurrence of certain events set forth therein. In particular, the Company Parties may terminate the TSA in the event the governing body of any Company Party determines, after consulting with counsel, (i) that continuing to pursue any of the Transactions in the manner contemplated by the TSA would be inconsistent with the exercise of its contractual or fiduciary duties or applicable law or (ii) in the exercise of its contractual or fiduciary duties, to pursue an alternative transaction proposal. There is no assurance that the restructuring and refinancing processes described in the TSA will be consummated.