Condensed Consolidated Statements Of Earnings (USD $)	3 Months Ended		6 Months Ended
	Jan. 31, 2012	Jan. 31, 2011	Jan. 31, 2012	Jan. 31, 2011
Revenues:
Propane and other gas liquids sales	$ 779,567,000	$ 774,179,000	$ 1,293,786,000	$ 1,142,802,000
Other	49,705,000	66,813,000	73,912,000	98,382,000
Total revenues	829,272,000	840,992,000	1,367,698,000	1,241,184,000
Costs and expenses:
Cost of product sold - propane and other gas liquids sales	600,600,000	559,416,000	1,003,722,000	815,902,000
Cost of product sold - other	24,468,000	38,500,000	31,094,000	51,358,000
Operating expense (includes $0.7 million and $3.1 million for the three months ended January 31, 2012 and 2011, respectively, and $1.8 million and $3.3 million for the six months ended January 31,2012 and 2011, respectively, for non-cash stock and unit-based compensation)	104,414,000	110,688,000	204,992,000	206,084,000
Depreciation and amortization expense	21,042,000	19,990,000	41,716,000	40,365,000
General and administrative expense	11,236,000	18,947,000	22,350,000	30,211,000
Equipment lease expense	3,528,000	3,543,000	7,057,000	7,192,000
Employee stock ownership plan compensation charge	1,937,000	2,932,000	4,516,000	5,376,000
Loss on disposal of assets and other	523,000	603,000	832,000	371,000
Operating income	61,524,000	86,373,000	51,419,000	84,325,000
Interest expense	(24,046,000)	(26,395,000)	(47,433,000)	(53,272,000)
Loss on extinguishment of debt	0	(36,449,000)	0	(36,449,000)
Other income, net	80,000	88,000	47,000	266,000
Earnings (loss) before income taxes	37,558,000	23,617,000	4,033,000	(5,130,000)
Income tax expense (benefit)	771,000	1,198,000	141,000	716,000
Net earnings (loss)	36,787,000	22,419,000	3,892,000	(5,846,000)
Net earnings attributable to noncontrolling interest	413,000	290,000	122,000	68,000
Net earnings (loss) attributable to Ferrellgas Partners, L.P.	36,374,000	22,129,000	3,770,000	(5,914,000)
Less: General partner's interest in net earnings (loss)	364,000	221,000	38,000	(59,000)
Common unitholders' interest in net earnings (loss)	36,010,000	21,908,000	3,732,000	(5,855,000)
Basic and diluted net earnings (loss) per common unitholders' interest	$ 0.47	$ 0.31	$ 0.05	$ (0.08)
Cash distributions declared per common unit	$ 0.50	$ 0.50	$ 1.00	$ 1.00
Ferrellgas Partners Finance Corp. [Member]
Costs and expenses:
General and administrative expense	125	125	175	215
Net earnings (loss)	(125)	(125)	(175)	(215)
Ferrellgas, L.P. [Member]
Revenues:
Propane and other gas liquids sales	779,567,000	774,179,000	1,293,786,000	1,142,802,000
Other	49,705,000	66,813,000	73,912,000	98,382,000
Total revenues	829,272,000	840,992,000	1,367,698,000	1,241,184,000
Costs and expenses:
Cost of product sold - propane and other gas liquids sales	600,600,000	559,416,000	1,003,722,000	815,902,000
Cost of product sold - other	24,468,000	38,500,000	31,094,000	51,358,000
Operating expense (includes $0.7 million and $3.1 million for the three months ended January 31, 2012 and 2011, respectively, and $1.8 million and $3.3 million for the six months ended January 31,2012 and 2011, respectively, for non-cash stock and unit-based compensation)	104,347,000	110,618,000	204,863,000	205,945,000
Depreciation and amortization expense	21,042,000	19,990,000	41,716,000	40,365,000
General and administrative expense	11,236,000	18,947,000	22,350,000	30,211,000
Equipment lease expense	3,528,000	3,543,000	7,057,000	7,192,000
Employee stock ownership plan compensation charge	1,937,000	2,932,000	4,516,000	5,376,000
Loss on disposal of assets and other	523,000	603,000	832,000	371,000
Operating income	61,591,000	86,443,000	51,548,000	84,464,000
Interest expense	(20,016,000)	(20,196,000)	(39,373,000)	(40,876,000)
Loss on extinguishment of debt		(36,449,000)		(36,449,000)
Other income, net	80,000	88,000	47,000	266,000
Earnings (loss) before income taxes	41,655,000	29,886,000	12,222,000	7,405,000
Income tax expense (benefit)	771,000	1,198,000	140,000	716,000
Net earnings (loss)	40,884,000	28,688,000	12,082,000	6,689,000
Ferrellgas Finance Corp. [Member]
Costs and expenses:
General and administrative expense	1,665	4,790	3,165	7,840
Net earnings (loss)	$ (1,665)	$ (4,790)	$ (3,165)	$ (7,840)