Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2017	Jul. 31, 2016	Jul. 31, 2015
Comprehensive income (loss):
Net earnings (loss)	$ (54,501)	$ (672,035)	$ 30,089
Other comprehensive income (loss):
Change in value on risk management derivatives	22,525	1,789	(73,647)
Reclassification of gains and losses of derivatives to earnings	1,938	27,302	28,258
Foreign currency translation adjustment	320	0	(2)
Pension liability adjustment	541	(333)	(185)
Other comprehensive income (loss)	25,324	28,758	(45,576)
Comprehensive income (loss)	(29,177)	(643,277)	(15,487)
Less: comprehensive income (loss) attributable to noncontrolling interest	(39)	(6,328)	8
Comprehensive income (loss) attributable to Ferrellgas Partners, LP	(29,138)	(636,949)	(15,495)
Ferrellgas, L.P. [Member]
Comprehensive income (loss):
Net earnings (loss)	(29,059)	(655,391)	46,427
Other comprehensive income (loss):
Change in value on risk management derivatives	22,525	1,789	(73,647)
Reclassification of gains and losses of derivatives to earnings	1,938	27,302	28,258
Foreign currency translation adjustment	320	0	(2)
Pension liability adjustment	541	(333)	(185)
Other comprehensive income (loss)	25,324	28,758	(45,576)
Comprehensive income (loss)	$ (3,735)	$ (626,633)	$ 851