Accounts And Notes Receivable, Net And Accounts Receivable Securitization (Accounts And Notes Receivable) (Details) (USD $) In Thousands	Jul. 31, 2011	Jul. 31, 2010
Accounts receivable pledged as collateral	$ 112,509
Accounts receivable	51,104	33,725
Note receivable from Ferrellgas Receivables		44,927
Retained interest in Ferrellgas Receivables		15,323
Other	229	269
Less: Allowance for doubtful accounts	(4,310)	(5,010)
Accounts and notes receivable, net	159,532	89,234
Ferrellgas, L.P. And Subsidiaries [Member]
Accounts receivable pledged as collateral	112,509
Accounts receivable	51,104	33,725
Note receivable from Ferrellgas Receivables		44,927
Retained interest in Ferrellgas Receivables		15,323
Other	229	269
Less: Allowance for doubtful accounts	(4,310)	(5,010)
Accounts and notes receivable, net	$ 159,532	$ 89,234