Business Combinations (Narrative) (Details) (USD $)	12 Months Ended
	Jul. 31, 2014	Jul. 31, 2013	Jul. 31, 2012
Proceeds from equity offering, net of issuance costs	$ 50,000,000	$ 0	$ 49,938,000
Ferrellgas, L.P. [Member]
Proceeds from equity offering, net of issuance costs	50,000,000
Propane and related equipment sales [Member]
Aggregate fair value of transactions	38,661,000	39,221,000	14,034,000
Propane and related equipment sales [Member] | Ferrellgas, L.P. [Member]
Aggregate fair value of transactions	38,661,000	39,221,000	14,034,000
Midstream Operations [Member]
Aggregate fair value of transactions	130,340,000	0	0
Midstream Operations [Member] | Ferrellgas, L.P. [Member]
Aggregate fair value of transactions	130,340,000	0	0
Minimum [Member]
Potential Undiscounted Contingent Consideration Payments	0
Minimum [Member] | Ferrellgas, L.P. [Member]
Potential Undiscounted Contingent Consideration Payments	0
Maximum [Member]
Potential Undiscounted Contingent Consideration Payments	2,000,000
Maximum [Member] | Ferrellgas, L.P. [Member]
Potential Undiscounted Contingent Consideration Payments	$ 2,000,000