Segment Reporting Segment Reporting (Schedule of Segment Reporting Information, by Segment) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jul. 31, 2014
Statement [Line Items]
Revenues	$ 2,405,860
Costs and Expenses	2,117,712
Adjusted EBITDA	288,148
Propane and related equipment sales [Member]
Statement [Line Items]
Revenues	2,398,425
Costs and Expenses	2,067,133
Adjusted EBITDA	331,292
Midstream Operations [Member]
Statement [Line Items]
Revenues	7,435
Costs and Expenses	3,997
Adjusted EBITDA	3,438
Corporate and Other [Member]
Statement [Line Items]
Revenues	0
Costs and Expenses	46,582
Adjusted EBITDA	(46,582)
Ferrellgas, L.P. [Member]
Statement [Line Items]
Revenues	2,405,860
Costs and Expenses	2,117,735
Adjusted EBITDA	288,125
Ferrellgas, L.P. [Member] | Propane and related equipment sales [Member]
Statement [Line Items]
Revenues	2,398,425
Costs and Expenses	2,067,156
Adjusted EBITDA	331,269
Ferrellgas, L.P. [Member] | Midstream Operations [Member]
Statement [Line Items]
Revenues	7,435
Costs and Expenses	3,997
Adjusted EBITDA	3,438
Ferrellgas, L.P. [Member] | Corporate and Other [Member]
Statement [Line Items]
Revenues	0
Costs and Expenses	46,582
Adjusted EBITDA	$ (46,582)