Goodwill And Intangible Assets, Net (Goodwill And Intangible Assets, Net) (Details) (USD $) In Thousands, unless otherwise specified	Jul. 31, 2014	Jul. 31, 2013	Jul. 31, 2012
Goodwill, gross carrying amount	$ 273,210	$ 253,362
Goodwill, net	273,210	253,362	248,944
Amortizable intangible assets, gross carrying amount	583,893	473,766
Amortizable intangible assets, accumulated amortization	(370,108)	(346,618)
Amortizable intangible assets, net	213,785	127,148
Intangible assets gross excluding goodwill	646,279	536,134
Intangible assets amortization and impairment net excluding goodwill	(370,108)	(346,618)
Intangible assets net excluding goodwill	276,171	189,516
Ferrellgas, L.P. [Member]
Goodwill, gross carrying amount	273,210	253,362
Goodwill, net	273,210	253,362	248,944
Amortizable intangible assets, gross carrying amount	583,893	473,766
Amortizable intangible assets, accumulated amortization	(370,108)	(346,618)
Amortizable intangible assets, net	213,785	127,148
Intangible assets gross excluding goodwill	646,279	536,134
Intangible assets amortization and impairment net excluding goodwill	(370,108)	(346,618)
Intangible assets net excluding goodwill	276,171	189,516
Trade Names And Trademarks [Member]
Indefinite-lived intangible assets (excluding goodwill)	62,386	62,368
Trade Names And Trademarks [Member] | Ferrellgas, L.P. [Member]
Indefinite-lived intangible assets (excluding goodwill)	62,386	62,368
Customer Lists [Member]
Amortizable intangible assets, gross carrying amount	500,100	416,620
Amortizable intangible assets, accumulated amortization	(322,277)	(302,179)
Amortizable intangible assets, net	177,823	114,441
Customer Lists [Member] | Ferrellgas, L.P. [Member]
Amortizable intangible assets, gross carrying amount	500,100	416,620
Amortizable intangible assets, accumulated amortization	(322,277)	(302,179)
Amortizable intangible assets, net	177,823	114,441
Non-Compete Agreements [Member]
Amortizable intangible assets, gross carrying amount	63,933	47,974
Amortizable intangible assets, accumulated amortization	(43,120)	(40,994)
Amortizable intangible assets, net	20,813	6,980
Non-Compete Agreements [Member] | Ferrellgas, L.P. [Member]
Amortizable intangible assets, gross carrying amount	63,933	47,974
Amortizable intangible assets, accumulated amortization	(43,120)	(40,994)
Amortizable intangible assets, net	20,813	6,980
Permits and favorable lease arrangements [Member]
Amortizable intangible assets, gross carrying amount	10,683	0
Amortizable intangible assets, accumulated amortization	(119)	0
Amortizable intangible assets, net	10,564	0
Permits and favorable lease arrangements [Member] | Ferrellgas, L.P. [Member]
Amortizable intangible assets, gross carrying amount	10,683	0
Amortizable intangible assets, accumulated amortization	(119)	0
Amortizable intangible assets, net	10,564	0
Other Intangible Assets [Member]
Amortizable intangible assets, gross carrying amount	9,177	9,172
Amortizable intangible assets, accumulated amortization	(4,592)	(3,445)
Amortizable intangible assets, net	4,585	5,727
Other Intangible Assets [Member] | Ferrellgas, L.P. [Member]
Amortizable intangible assets, gross carrying amount	9,177	9,172
Amortizable intangible assets, accumulated amortization	(4,592)	(3,445)
Amortizable intangible assets, net	$ 4,585	$ 5,727