Subsequent Events	6 Months Ended
Subsequent Events	Jan. 31, 2021
Subsequent Event [Line Items]
Subsequent Events	O. 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. As previously disclosed on January 11, 2021 Ferrellgas Partners and Ferrellgas Partners Finance Corp. commenced the Chapter 11 Cases by filing voluntary petitions for relief under chapter 11 of the Bankruptcy Code in the Bankruptcy Court. On March 5, 2021, the Bankruptcy Court entered an order confirming the Plan. The effectiveness of the Plan is conditioned on certain requirements such as the operating partnership completing its refinancing. There is no assurance that the Plan will become effective or that the TSA Transactions will be consummated, and the outcome of Ferrellgas’ debt reduction strategy continues to remain uncertain. For more information, refer to the discussion of the TSA and the Chapter 11 Cases under “Transaction Support Agreement and Chapter 11 Bankruptcy Cases” in Note A – Partnership organization and formation above.
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. As previously disclosed, on January 11, 2021 Ferrellgas Partners and Ferrellgas Partners Finance Corp. commenced the Chapter 11 Cases by filing voluntary petitions for relief under chapter 11 of the Bankruptcy Code in the Bankruptcy Court. On March 5, 2021, the Bankruptcy Court entered an order confirming the Plan. The effectiveness of the Plan is conditioned on certain requirements such as the operating partnership completing its refinancing. There is no assurance that the Plan will become effective or that the TSA Transactions will be consummated, and the outcome of Ferrellgas’ debt reduction strategy continues to remain uncertain. For more information, refer to the discussion of the TSA and the Chapter 11 Cases under “Transaction Support Agreement and Chapter 11 Bankruptcy Cases” in Note A – Formation above.
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. As previously disclosed, on January 11, 2021 Ferrellgas Partners and Ferrellgas Partners Finance Corp. commenced the Chapter 11 Cases by filing voluntary petitions for relief under chapter 11 of the Bankruptcy Code in the Bankruptcy Court. On March 5, 2021, the Bankruptcy Court entered an order confirming the Plan. The effectiveness of the Plan is conditioned on certain requirements such as the operating partnership completing its refinancing. There is no assurance that the Plan will become effective or that the TSA Transactions will be consummated, and the outcome of Ferrellgas’ debt reduction strategy continues to remain uncertain. For more information, refer to the discussion of the TSA and the Chapter 11 Cases under “Transaction Support Agreement and Chapter 11 Bankruptcy Cases” in Note A – Partnership organization and formation above.
Ferrellgas 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. As previously disclosed on January 11, 2021 Ferrellgas Partners and Ferrellgas Partners Finance Corp. commenced the Chapter 11 Cases by filing voluntary petitions for relief under chapter 11 of the Bankruptcy Code in the Bankruptcy Court. On March 5, 2021, the Bankruptcy Court entered an order confirming the Plan. The effectiveness of the Plan is conditioned on certain requirements such as the operating partnership completing its refinancing. There is no assurance that the Plan will become effective or that the TSA Transactions will be consummated, and the outcome of Ferrellgas’ debt reduction strategy continues to remain uncertain. For more information, refer to the discussion of the TSA and the Chapter 11 Cases under “Transaction Support Agreement and Chapter 11 Bankruptcy Cases” in Note A –Formation above.