Consolidated Statements Of Earnings - USD ($)	3 Months Ended
	Oct. 31, 2016	Oct. 31, 2015
Revenues:
Propane and other gas liquids sales	$ 242,399,000	$ 245,301,000
Midstream operations	108,044,000	193,670,000
Other	29,099,000	32,175,000
Total revenues	379,542,000	471,146,000
Costs and expenses:
Cost of sales - propane and other gas liquids sales	119,212,000	121,751,000
Cost of sales - midstream operations	94,642,000	153,604,000
Cost of sales - other	11,746,000	14,448,000
Operating expense	105,086,000	116,199,000
Depreciation and amortization expense	26,202,000	36,979,000
General and administrative expense	14,269,000	19,144,000
Equipment lease expense	7,349,000	7,032,000
Non-cash employee stock ownership plan compensation charge	3,754,000	5,256,000
Goodwill impairment	0	29,316,000
Loss on disposal of assets and other	6,423,000	14,917,000
Operating loss	(9,141,000)	(47,500,000)
Interest expense	(35,428,000)	(33,788,000)
Other income, net	508,000	(122,000)
Loss before income taxes	(44,061,000)	(81,410,000)
Income tax benefit	(590,000)	(844,000)
Net Earnings (Loss)	(43,471,000)	(80,566,000)
Net earnings attributable to noncontrolling interest	(398,000)	(773,000)
Net earnings attributable to Ferrellgas Partners, L.P.	(43,073,000)	(79,793,000)
Less: General partner's interest in net earnings	(431,000)	(798,000)
Common unitholders' interest in net earnings	$ (42,642,000)	$ (78,995,000)
Basic and diluted net earnings per common unitholders' interest	$ (0.44)	$ (0.79)
Cash distributions declared per common unit	$ 0.10	$ 0.51
Ferrellgas Partners Finance Corp. [Member]
Costs and expenses:
General and administrative expense	$ 92	$ 50
Net Earnings (Loss)	(92)	(50)
Ferrellgas, L.P. [Member]
Revenues:
Propane and other gas liquids sales	242,399,000	245,301,000
Midstream operations	108,044,000	193,670,000
Other	29,099,000	32,175,000
Total revenues	379,542,000	471,146,000
Costs and expenses:
Cost of sales - propane and other gas liquids sales	119,212,000	121,751,000
Cost of sales - midstream operations	94,642,000	153,604,000
Cost of sales - other	11,746,000	14,448,000
Operating expense	105,086,000	116,199,000
Depreciation and amortization expense	26,202,000	36,979,000
General and administrative expense	14,269,000	19,144,000
Equipment lease expense	7,349,000	7,032,000
Non-cash employee stock ownership plan compensation charge	3,754,000	5,256,000
Goodwill impairment	0	29,316,000
Loss on disposal of assets and other	6,423,000	14,917,000
Operating loss	(9,141,000)	(47,500,000)
Interest expense	(31,398,000)	(29,758,000)
Other income, net	508,000	(122,000)
Loss before income taxes	(40,031,000)	(77,380,000)
Income tax benefit	(591,000)	(844,000)
Net Earnings (Loss)	(39,440,000)	(76,536,000)
Net earnings attributable to Ferrellgas Partners, L.P.	(39,440,000)	(76,536,000)
Ferrellgas Finance Corp. [Member]
Costs and expenses:
General and administrative expense	1,550	3,050
Net Earnings (Loss)	$ (1,550)	$ (3,050)