Summary Of Significant Accounting Policies (Deferred Taxes Assets And Liabilities) (Details) (USD $)	Jul. 31, 2014	Jul. 31, 2013
Deferred tax assets	$ 1,152,000	$ 1,367,000
Deferred tax liabilities	(4,313,000)	(4,602,000)
Net deferred tax liability	(3,161,000)	(3,235,000)
Ferrellgas, L.P. [Member]
Deferred tax assets	1,152,000	1,367,000
Deferred tax liabilities	(4,313,000)	(4,602,000)
Net deferred tax liability	$ (3,161,000)	$ (3,235,000)