Accounts And Notes Receivable, Net And Accounts Receivable Securitization (Accounts And Notes Receivable) (Details) (USD $) In Thousands, unless otherwise specified	Jan. 31, 2013	Jul. 31, 2012
Accounts receivable pledged as collateral	$ 224,428	$ 121,812
Accounts receivable	18,924	5,788
Other	400	216
Less: Allowance for doubtful accounts	(5,194)	(3,812)
Accounts and notes receivable, net	238,558	124,004
Ferrellgas, L.P. [Member]
Accounts receivable pledged as collateral	224,428	121,812
Accounts receivable	18,924	5,788
Other	400	216
Less: Allowance for doubtful accounts	(5,194)	(3,812)
Accounts and notes receivable, net	$ 238,558	$ 124,004