Consolidated Statements Of Earnings (USD $)	12 Months Ended
	Jul. 31, 2014	Jul. 31, 2013	Jul. 31, 2012
Revenues:
Propane and other gas liquids sales	$ 2,147,343,000	$ 1,739,267,000	$ 2,160,945,000
Other	258,517,000	236,200,000	178,147,000
Total revenues	2,405,860,000	1,975,467,000	2,339,092,000
Costs and expenses:
Cost of product sold - propane and other gas liquids sales	1,456,388,000	1,092,261,000	1,601,886,000
Cost of product sold - other	158,152,000	144,456,000	95,323,000
Operating expense	451,528,000	412,450,000	401,727,000
Depreciation and amortization expense	84,202,000	83,344,000	83,841,000
General and administrative expense	65,156,000	53,181,000	43,212,000
Equipment lease expense	17,745,000	15,983,000	14,648,000
Non-cash employee stock ownership plan compensation charge	21,789,000	15,769,000	9,440,000
Loss on disposal of assets	6,486,000	10,421,000	6,035,000
Operating income (loss)	144,414,000	147,602,000	82,980,000
Interest expense	(86,502,000)	(89,145,000)	(93,254,000)
Loss on extinguishment of debt	(21,202,000)	0	0
Other income (expense), net	(479,000)	565,000	506,000
Earnings (loss) before income taxes	36,231,000	59,022,000	(9,768,000)
Income tax expense	2,516,000	1,855,000	1,128,000
Net earnings (loss)	33,715,000	57,167,000	(10,896,000)
Net earnings (loss) attributable to noncontrolling interest	504,000	741,000	56,000
Net earnings (loss) attributable to Ferrellgas Partners, L.P.	33,211,000	56,426,000	(10,952,000)
Less: General partner's interest in net earnings (loss)	332,000	564,000	(110,000)
Common unitholders' interest in net earnings (loss)	32,879,000	55,862,000	(10,842,000)
Basic and diluted net earnings (loss) per common unitholders' interest	$ 0.41	$ 0.71	$ (0.14)
Cash distributions declared per common unit	$ 2.00	$ 2.00	$ 2.00
Ferrellgas Partners Finance Corp. [Member]
Costs and expenses:
General and administrative expense	2,149	2,038	1,999
Net earnings (loss)	(2,149)	(2,038)	(1,999)
Ferrellgas, L.P. [Member]
Revenues:
Propane and other gas liquids sales	2,147,343,000	1,739,267,000	2,160,945,000
Other	258,517,000	236,200,000	178,147,000
Total revenues	2,405,860,000	1,975,467,000	2,339,092,000
Costs and expenses:
Cost of product sold - propane and other gas liquids sales	1,456,388,000	1,092,261,000	1,601,886,000
Cost of product sold - other	158,152,000	144,456,000	95,323,000
Operating expense	451,551,000	412,430,000	401,377,000
Depreciation and amortization expense	84,202,000	83,344,000	83,841,000
General and administrative expense	65,156,000	53,181,000	43,212,000
Equipment lease expense	17,745,000	15,983,000	14,648,000
Non-cash employee stock ownership plan compensation charge	21,789,000	15,769,000	9,440,000
Loss on disposal of assets	6,486,000	10,421,000	6,035,000
Operating income (loss)	144,391,000	147,622,000	83,330,000
Interest expense	(70,332,000)	(72,974,000)	(77,127,000)
Loss on extinguishment of debt	(21,202,000)	0	0
Other income (expense), net	(479,000)	565,000	506,000
Earnings (loss) before income taxes	52,378,000	75,213,000	6,709,000
Income tax expense	2,471,000	1,838,000	1,120,000
Net earnings (loss)	49,907,000	73,375,000	5,589,000
Ferrellgas Finance Corp. [Member]
Costs and expenses:
General and administrative expense	5,289	4,999	3,489
Net earnings (loss)	$ (5,289)	$ (4,999)	$ (3,489)