Contingencies And Commitments	3 Months Ended
Contingencies And Commitments	Oct. 31, 2016
Contingencies And Commitments	Contingencies and commitments Litigation Ferrellgas’ operations are subject to all operating hazards and risks normally incidental to handling, storing, transporting and otherwise providing for use by consumers of combustible liquids such as propane and crude oil. As a result, at any given time, Ferrellgas can be threatened with or named as a defendant in various lawsuits arising in the ordinary course of business. Other than as discussed below, Ferrellgas is not a party to any legal proceedings other than various claims and lawsuits arising in the ordinary course of business. It is not possible to determine the ultimate disposition of these matters; however, management is of the opinion that there are no known claims or contingent claims that are reasonably expected to have a material adverse effect on the consolidated financial condition, results of operations and cash flows of Ferrellgas. Ferrellgas has been named as a defendant, along with a competitor, in putative class action lawsuits filed in multiple jurisdictions. The lawsuits allege that Ferrellgas and a competitor coordinated in 2008 to reduce the fill level in barbeque cylinders and combined to persuade a common customer to accept that fill reduction, resulting in increased cylinder costs to direct customers and end-user customers in violation of federal and certain state antitrust laws. The lawsuits seek treble damages, attorneys’ fees, injunctive relief and costs on behalf of the putative class. These lawsuits have been consolidated into one case by a multidistrict litigation panel. The Court has dismissed all claims brought by direct and indirect customers other than state law claims of indirect customers under Wisconsin, Maine and Vermont law. The direct customer plaintiffs have filed an appeal, which is pending. Ferrellgas believes it has strong defenses to the claims and intends to vigorously defend against the consolidated case. Ferrellgas does not believe loss is probable or reasonably estimable at this time related to the putative class action lawsuit. In addition, putative class action cases have been filed in California relating to residual propane remaining in the tank after use. Ferrellgas has prevailed at the trial court on a motion to dismiss those claims. It is uncertain whether plaintiffs will appeal; Ferrellgas intends to vigorously defend any such appeal. Ferrellgas does not believe loss is probable or reasonably estimable at this time related to the putative class action lawsuit. Ferrellgas has been named, along with several current and former officers, in several class action lawsuits alleging violations of certain securities laws based on alleged materially false and misleading statements in certain of our public disclosures. The lawsuits, the first of which was filed on October 6, 2016 in the Southern District of New York, seek unspecified compensatory damages. A derivative lawsuit with similar allegations has been filed in state court in Missouri naming Ferrellgas and several current and former officers and directors as defendants. Ferrellgas believes that it has defenses and will vigorously defend these cases. Ferrellgas does not believe loss is probable or reasonably estimable at this time related to the putative class action lawsuits or the derivative action. On October 21, 2016, Julio E. Rios II, an Executive Vice President of the general partner and the President and Chief Executive Officer of Bridger Logistics, LLC, and Jeremy H. Gamboa, also an Executive Vice President of the general partner and the Chief Operating Officer of Bridger Logistics, LLC both delivered notice of "good reason" for resignation to the general partner pursuant to their employment agreements alleging that the general partner had materially diminished their responsibilities and stating their intention to resign as a result if such purported material diminution is not cured within 30 days. On November 28, 2016, Mr. Rios and Mr. Gamboa each resigned from their positions, purportedly for "good reason" pursuant to their employment agreements. Each has indicated that they intend to make a claim for severance. The general partner denies that Mr. Rios and Mr. Gamboa had "good reason" to resign and has other defenses to their claims for severance. Ferrellgas does not believe a loss is probable or reasonably estimable at this time related to this matter.
Ferrellgas Partners Finance Corp. [Member]
Contingencies And Commitments	Contingencies and commitments The Finance Corp. serves as co-issuer and co-obligor for the Partnership's $182.0 million, 8.625% senior notes due 2020.
Ferrellgas, L.P. [Member]
Contingencies And Commitments	Contingencies and commitments Litigation Ferrellgas, L.P.’s operations are subject to all operating hazards and risks normally incidental to handling, storing, transporting and otherwise providing for use by consumers of combustible liquids such as propane and crude oil. As a result, at any given time, Ferrellgas, L.P. can be threatened with or named as a defendant in various lawsuits arising in the ordinary course of business. Other than as discussed below, Ferrellgas, L.P. is not a party to any legal proceedings other than various claims and lawsuits arising in the ordinary course of business. It is not possible to determine the ultimate disposition of these matters; however, management is of the opinion that there are no known claims or contingent claims that are reasonably expected to have a material adverse effect on the consolidated financial condition, results of operations and cash flows of Ferrellgas, L.P. Ferrellgas, L.P. has been named as a defendant, along with a competitor, in putative class action lawsuits filed in multiple jurisdictions. The lawsuits allege that Ferrellgas, L.P. and a competitor coordinated in 2008 to reduce the fill level in barbeque cylinders and combined to persuade a common customer to accept that fill reduction, resulting in increased cylinder costs to direct customers and end-user customers in violation of federal and certain state antitrust laws. The lawsuits seek treble damages, attorneys’ fees, injunctive relief and costs on behalf of the putative class. These lawsuits have been consolidated into one case by a multidistrict litigation panel. The Court has dismissed all claims brought by direct and indirect customers other than state law claims of indirect customers under Wisconsin, Maine and Vermont law. The direct customer plaintiffs have filed an appeal, which is pending. Ferrellgas, L.P. believes it has strong defenses to the claims and intends to vigorously defend against the consolidated case. Ferrellgas, L.P. does not believe loss is probable or reasonably estimable at this time related to the putative class action lawsuit. In addition, putative class action cases have been filed in California relating to residual propane remaining in the tank after use. Ferrellgas, L.P. has prevailed at the trial court on a motion to dismiss those claims. It is uncertain whether plaintiffs will appeal; Ferrellgas, L.P. intends to vigorously defend any such appeal. Ferrellgas, L.P. does not believe loss is probable or reasonably estimable at this time related to the putative class action lawsuit. Ferrellgas, L.P. has been named, along with several current and former officers, in several class action lawsuits alleging violations of certain securities laws based on alleged materially false and misleading statements in certain of our public disclosures. The lawsuits, the first of which was filed on October 6, 2016 in the Southern District of New York, seek unspecified compensatory damages. A derivative lawsuit with similar allegations has been filed in state court in Missouri naming Ferrellgas, L.P. and several current and former officers and directors as defendants. Ferrellgas, L.P. believes that it has defenses and will vigorously defend these cases. Ferrellgas, L.P. does not believe loss is probable or reasonably estimable at this time related to the putative class action lawsuits or the derivative action. On October 21, 2016, Julio E. Rios II, an Executive Vice President of the general partner and the President and Chief Executive Officer of Bridger Logistics, LLC, and Jeremy H. Gamboa, also an Executive Vice President of the general partner and the Chief Operating Officer of Bridger Logistics, LLC both delivered notice of "good reason" for resignation to the general partner pursuant to their employment agreements alleging that the general partner had materially diminished their responsibilities and stating their intention to resign as a result if such purported material diminution is not cured within 30 days. On November 28, 2016, Mr. Rios and Mr. Gamboa each resigned from their positions, purportedly for "good reason" pursuant to their employment agreements. Each has indicated that they intend to make a claim for severance. The general partner denies that Mr. Rios and Mr. Gamboa had "good reason" to resign and has other defenses to their claims for severance. Ferrellgas, L.P. does not believe a loss is probable or reasonably estimable at this time related to this matter.
Ferrellgas Finance Corp. [Member]
Contingencies And Commitments	Contingencies and commitments The Finance Corp. serves as co-issuer and co-obligor for debt securities of the Partnership.