Consolidated Statements of Comprehensive Income (USD $)	12 Months Ended
	Jul. 31, 2013	Jul. 31, 2012	Jul. 31, 2011
Comprehensive income (loss):
Net earnings (loss)	$ 57,167,000	$ (10,896,000)	$ (43,760,000)
Cumulative effect of change in accounting principle	0	0	1,255,000
Other comprehensive income (loss):
Change in value on risk management derivatives	4,252,000	(25,068,000)	22,676,000
Reclassification of gains and losses of derivatives to earnings	10,613,000	7,108,000	(17,358,000)
Foreign currency translation adjustment	(147,000)	(52,000)	2,000
Pension liability adjustment	290,000	38,000	(220,000)
Other comprehensive income (loss)	15,008,000	(17,974,000)	5,100,000
Comprehensive income (loss)	72,175,000	(28,870,000)	(37,405,000)
Less: comprehensive income (loss) attributable to noncontrolling interest	(893,000)	126,000	47,000
Comprehensive income (loss) attributable to Ferrellgas Partners, LP	71,282,000	(28,744,000)	(37,358,000)
Ferrellgas, L.P. [Member]
Comprehensive income (loss):
Net earnings (loss)	73,375,000	5,589,000	(11,062,000)
Cumulative effect of change in accounting principle	0	0	1,255,000
Other comprehensive income (loss):
Change in value on risk management derivatives	4,252,000	(25,068,000)	22,676,000
Reclassification of gains and losses of derivatives to earnings	10,613,000	7,108,000	(17,358,000)
Foreign currency translation adjustment	(147,000)	(52,000)	2,000
Pension liability adjustment	290,000	38,000	(220,000)
Other comprehensive income (loss)	15,008,000	(17,974,000)	5,100,000
Comprehensive income (loss)	$ 88,383,000	$ (12,385,000)	$ (4,707,000)