Goodwill And Intangible Assets, Net Goodwill And Intangible Assets, Net (Goodwill Rollforward) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jul. 31, 2013	Jul. 31, 2012	Jul. 31, 2011
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 248,944	$ 248,944
Goodwill acquisitions	4,640	0	5
Other	(222)
Goodwill, ending balance	253,362	248,944	248,944
Ferrellgas, L.P. [Member]
Goodwill [Roll Forward]
Goodwill, beginning balance	248,944	248,944
Goodwill acquisitions	4,640	0	5
Other	(222)
Goodwill, ending balance	$ 253,362	$ 248,944	$ 248,944