Summary Of Significant Accounting Policies (Significant Cash And Non-Cash Activities) (Details) (USD $) In Thousands, unless otherwise specified	3 Months Ended
	Oct. 31, 2014	Oct. 31, 2013
Cash Paid For [Abstract]
Interest	$ 2,978	$ 15,842
Income taxes	260	0
Non-Cash Investing Activities [Abstract]
Issuance of common units in connection with acquisitions	42,803
Change in accruals for property, plant and equipment additions	1,857	1,244
Ferrellgas, L.P. [Member]
Cash Paid For [Abstract]
Interest	2,978	15,842
Income taxes	260	0
Non-Cash Investing Activities [Abstract]
Change in accruals for property, plant and equipment additions	1,857	1,244
Common Unitholders [Member]
Non-Cash Investing Activities [Abstract]
Issuance of common units in connection with acquisitions	$ 41,948