Partners' Capital (Narrative) (Details) (USD $)	3 Months Ended						0 Months Ended	1 Months Ended	0 Months Ended	3 Months Ended	0 Months Ended
	Oct. 31, 2013	Oct. 31, 2013 Ferrellgas, L.P. [Member]	Oct. 31, 2013 General Partner [Member]	Oct. 31, 2012 General Partner [Member]	Oct. 31, 2013 General Partner [Member] Ferrellgas, L.P. [Member]	Oct. 31, 2012 General Partner [Member] Ferrellgas, L.P. [Member]	Nov. 21, 2013 Subsequent Event [Member]	Dec. 31, 2013 Subsequent Event [Member]	Nov. 21, 2013 Subsequent Event [Member] Ferrellgas, L.P. [Member]	Oct. 31, 2013 Subsequent Event [Member] Ferrellgas, L.P. [Member]	Nov. 21, 2013 Subsequent Event [Member] Ferrellgas Partners [Member] Ferrellgas, L.P. [Member]	Dec. 13, 2013 Subsequent Event [Member] General Partner [Member]	Nov. 21, 2013 Subsequent Event [Member] General Partner [Member] Ferrellgas, L.P. [Member]
Capital Unit [Line Items]
Limited partner ownership interest	27.00%
Cash distribution declaration date							Nov. 21, 2013		Nov. 21, 2013
Cash distributions to related parties											$ 47,800,000	$ 400,000	$ 500,000
Cash distributions declared per common unit							$ 0.50
Cash distributions payment date								Dec. 13, 2013		Dec. 13, 2013
General partner ownership interest	1.00%	1.00%	2.00%		1.0101%
Non-cash contributions			$ 200,000	$ 100,000	$ 100,000	$ 100,000