Segment Reporting Segment Reporting (Schedule of Segment Reporting Information, by Segment) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Oct. 31, 2014
Segment Reporting Information [Line Items]
Revenues	$ 443,355
Costs and Expenses	408,994
Adjusted EBITDA	34,361
Propane and related equipment sales [Member]
Segment Reporting Information [Line Items]
Revenues	435,439
Costs and Expenses	393,805
Adjusted EBITDA	41,634
Midstream Operations [Member]
Segment Reporting Information [Line Items]
Revenues	7,916
Costs and Expenses	4,733
Adjusted EBITDA	3,183
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Revenues	0
Costs and Expenses	10,456
Adjusted EBITDA	(10,456)
Ferrellgas, L.P. [Member]
Segment Reporting Information [Line Items]
Revenues	443,355
Costs and Expenses	408,997
Adjusted EBITDA	34,358
Ferrellgas, L.P. [Member] | Propane and related equipment sales [Member]
Segment Reporting Information [Line Items]
Revenues	435,439
Costs and Expenses	393,808
Adjusted EBITDA	41,631
Ferrellgas, L.P. [Member] | Midstream Operations [Member]
Segment Reporting Information [Line Items]
Revenues	7,916
Costs and Expenses	4,733
Adjusted EBITDA	3,183
Ferrellgas, L.P. [Member] | Corporate and Other [Member]
Segment Reporting Information [Line Items]
Revenues	0
Costs and Expenses	10,456
Adjusted EBITDA	$ (10,456)