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Summary Of Significant Accounting Policies (Summary Of Income Tax Expense) (Details) (USD $)	12 Months Ended
	Jul. 31, 2013	Jul. 31, 2012	Jul. 31, 2011
Current expense	$ 1,722,000	$ 215,000	$ 490,000
Deferred expense	133,000	913,000	751,000
Income tax expense	1,855,000	1,128,000	1,241,000
Ferrellgas, L.P. [Member]
Current expense	1,705,000	207,000	474,000
Deferred expense	133,000	913,000	751,000
Income tax expense	$ 1,838,000	$ 1,120,000	$ 1,225,000

Amount of current income tax expense (benefit) pertaining to taxable income (loss) from continuing operations.

Amount of deferred income tax expense (benefit) pertaining to income (loss) from continuing operations.