Consolidated Statements Of Partners' Capital (Deficit) (USD $)	Total	Accumulated Other Comprehensive Income (Loss)	Total Ferrellgas Partners, L.P. Partners' Capital (Deficit) [Member]	Non-Controlling Interest [Member]	Common Unitholders [Member]	General Partner Unitholder [Member]	Ferrellgas, L.P. [Member]	Ferrellgas, L.P. [Member] Accumulated Other Comprehensive Income (Loss)	Ferrellgas, L.P. [Member] Common Unitholders [Member]	Ferrellgas, L.P. [Member] General Partner Unitholder [Member]
Partners' capital balance at Jul. 31, 2013	$ (86,627,000)	$ 1,697,000	$ (87,596,000)	$ 969,000	$ (28,931,000)	$ (60,362,000)	$ 94,476,000	$ 1,728,000	$ 91,810,000	$ 938,000
Partners' capital balance (in units) at Jul. 31, 2013					79,072,800	798,700
Increase (Decrease) in Partners' Capital [Roll Forward]
Contributions in connection with non-cash ESOP and stock and unit-based compensation charges	26,571,000		26,303,000	268,000	26,040,000	263,000	26,571,000		26,303,000	268,000
Distributions	(121,205,000)		(119,901,000)	(1,304,000)	(118,702,000)	(1,199,000)	(129,054,000)		(127,750,000)	(1,304,000)
Issuance of common units in connection with acquisitions - units					62,600	700
Issuance of common units in connection with acquisitions - value	1,530,000		1,515,000	15,000	1,500,000	15,000	1,515,000		1,500,000	15,000
Contributions from partners							606,000		600,000	6,000
Exercise of common unit options -units					52,000	500
Exercise of common unit options - value	617,000		611,000	6,000	605,000	6,000
Net earnings	81,956,000		81,006,000	950,000	80,196,000	810,000	94,086,000		93,136,000	950,000
Other comprehensive income	8,234,000	8,151,000	8,151,000	83,000			8,234,000	8,234,000
Partners' capital balance at Apr. 30, 2014	(88,924,000)	9,848,000	(89,911,000)	987,000	(39,292,000)	(60,467,000)	96,434,000	9,962,000	85,599,000	873,000
Partners' capital balance (in units) at Apr. 30, 2014					79,187,400	799,900
Partners' capital balance at Jan. 31, 2014
Increase (Decrease) in Partners' Capital [Roll Forward]
Net earnings	45,890,000						50,053,000
Other comprehensive income	(3,263,000)						(3,263,000)
Partners' capital balance at Apr. 30, 2014	$ (88,924,000)						$ 96,434,000