Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Apr. 30, 2018	Apr. 30, 2017	Apr. 30, 2018	Apr. 30, 2017
Net earnings (loss)	$ 11,062	$ 6,691	$ (39,028)	$ 1,748
Other comprehensive income (loss):
Change in value of risk management derivatives	(159)	(6,496)	23,362	13,904
Reclassification of derivative gains and losses to earnings	(6,568)	(1,933)	(20,260)	2,819
Other comprehensive income (loss)	(6,727)	(8,429)	3,102	16,723
Comprehensive income (loss)	4,335	(1,738)	(35,926)	18,471
Less: Comprehensive income attributable to noncontrolling interest	134	70	(100)	356
Comprehensive income attributable to Ferrellgas Partners, LP	4,201	(1,808)	(35,826)	18,115
Ferrellgas, L.P. [Member]
Net earnings (loss)	19,840	15,395	(13,012)	18,555
Other comprehensive income (loss):
Change in value of risk management derivatives	(159)	(6,496)	23,362	13,904
Reclassification of derivative gains and losses to earnings	(6,568)	(1,933)	(20,260)	2,819
Other comprehensive income (loss)	(6,727)	(8,429)	3,102	16,723
Comprehensive income (loss)	$ 13,113	$ 6,966	$ (9,910)	$ 35,278