Consolidated Statements Of Earnings (USD $)	12 Months Ended
	Jul. 31, 2013	Jul. 31, 2012	Jul. 31, 2011
Revenues:
Propane and other gas liquids sales	$ 1,739,267,000	$ 2,160,945,000	$ 2,212,257,000
Other	236,200,000	178,147,000	210,958,000
Total revenues	1,975,467,000	2,339,092,000	2,423,215,000
Costs and expenses:
Cost of product sold - propane and other gas liquids sales	1,092,261,000	1,601,886,000	1,609,344,000
Cost of product sold - other	144,456,000	95,323,000	124,470,000
Operating expense	412,450,000	401,727,000	411,038,000
Depreciation and amortization expense	83,344,000	83,841,000	82,486,000
General and administrative expense	53,181,000	43,212,000	61,891,000
Equipment lease expense	15,983,000	14,648,000	14,435,000
Non-cash employee stock ownership plan compensation charge	15,769,000	9,440,000	10,157,000
Loss on disposal of assets	10,421,000	6,035,000	3,633,000
Operating income (loss)	147,602,000	82,980,000	105,761,000
Interest expense	(89,145,000)	(93,254,000)	(101,885,000)
Loss on extinguishment of debt			(46,962,000)
Other income (expense), net	565,000	506,000	567,000
Earnings (loss) before income taxes	59,022,000	(9,768,000)	(42,519,000)
Income tax expense	1,855,000	1,128,000	1,241,000
Net earnings (loss)	57,167,000	(10,896,000)	(43,760,000)
Net earnings (loss) attributable to noncontrolling interest	741,000	56,000	(112,000)
Net earnings (loss) attributable to Ferrellgas Partners, L.P.	56,426,000	(10,952,000)	(43,648,000)
Less: General partner's interest in net earnings (loss)	564,000	(110,000)	(436,000)
Common unitholders' interest in net earnings (loss)	55,862,000	(10,842,000)	(43,212,000)
Basic and diluted net earnings (loss) per common unitholders' interest	$ 0.71	$ (0.14)	$ (0.60)
Cash distributions declared per common unit	$ 2.00	$ 2.00	$ 2.00
Ferrellgas Partners Finance Corp. [Member]
Costs and expenses:
General and administrative expense	2,038	1,999	2,789
Net earnings (loss)	(2,038)	(1,999)	(2,789)
Ferrellgas, L.P. [Member]
Revenues:
Propane and other gas liquids sales	1,739,267,000	2,160,945,000	2,212,257,000
Other	236,200,000	178,147,000	210,958,000
Total revenues	1,975,467,000	2,339,092,000	2,423,215,000
Costs and expenses:
Cost of product sold - propane and other gas liquids sales	1,092,261,000	1,601,886,000	1,609,344,000
Cost of product sold - other	144,456,000	95,323,000	124,470,000
Operating expense	412,430,000	401,377,000	410,680,000
Depreciation and amortization expense	83,344,000	83,841,000	82,486,000
General and administrative expense	53,181,000	43,212,000	61,891,000
Equipment lease expense	15,983,000	14,648,000	14,435,000
Non-cash employee stock ownership plan compensation charge	15,769,000	9,440,000	10,157,000
Loss on disposal of assets	10,421,000	6,035,000	3,633,000
Operating income (loss)	147,622,000	83,330,000	106,119,000
Interest expense	(72,974,000)	(77,127,000)	(80,074,000)
Loss on extinguishment of debt			(36,449,000)
Other income (expense), net	565,000	506,000	567,000
Earnings (loss) before income taxes	75,213,000	6,709,000	(9,837,000)
Income tax expense	1,838,000	1,120,000	1,225,000
Net earnings (loss)	73,375,000	5,589,000	(11,062,000)
Ferrellgas Finance Corp. [Member]
Costs and expenses:
General and administrative expense	4,999	3,489	8,163
Net earnings (loss)	$ (4,999)	$ (3,489)	$ (8,163)