Equity (Deficit) - Paid Distributions (Details) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2022	Jul. 31, 2020
Limited Partners' Capital Account [Line Items]
Distributions paid	$ 99,996	$ 158
Parent [Member]
Limited Partners' Capital Account [Line Items]
Distributions paid	99,996	0
Common Unitholders [Member]
Limited Partners' Capital Account [Line Items]
Distributions paid	100,000
Ferrellgas, L.P. [Member]
Limited Partners' Capital Account [Line Items]
Distributions paid	119,216	15,654
Ferrellgas, L.P. [Member] | Ferrellgas Inc., General Partner [Member]
Limited Partners' Capital Account [Line Items]
Distributions paid		158
Ferrellgas, L.P. [Member] | Ferrellgas Partners LP [Member]
Limited Partners' Capital Account [Line Items]
Distributions paid	119,216	15,496
Ferrellgas, L.P. [Member] | Common Unitholders [Member]
Limited Partners' Capital Account [Line Items]
Distributions paid	$ 119,216	15,496
Ferrellgas, L.P. [Member] | General Partner [Member]
Limited Partners' Capital Account [Line Items]
Distributions paid		$ 158