Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended
	Oct. 31, 2020	Oct. 31, 2019
Comprehensive income (loss):
Net loss	$ (46,453)	$ (45,717)
Other comprehensive income (loss):
Change in value on risk management derivatives	5,767	(13,627)
Reclassification of losses on derivatives to earnings, net	2,150	7,479
Other comprehensive income (loss)	7,917	(6,148)
Comprehensive loss	(38,536)	(51,865)
Less: comprehensive loss attributable to noncontrolling interest	(311)	(435)
Comprehensive loss attributable to Ferrellgas Partners, LP	(38,225)	(51,430)
Ferrellgas, L.P. [Member]
Comprehensive income (loss):
Net loss	(38,751)	(36,898)
Other comprehensive income (loss):
Change in value on risk management derivatives	5,767	(13,627)
Reclassification of losses on derivatives to earnings, net	2,150	7,479
Other comprehensive income (loss)	7,917	(6,148)
Comprehensive loss	(30,834)	(43,046)
Comprehensive loss attributable to Ferrellgas Partners, LP	$ (30,834)	$ (43,046)