Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jan. 31, 2019	Jan. 31, 2018	Jan. 31, 2019	Jan. 31, 2018
Comprehensive income (loss):
Net earnings (loss)	$ 43,875	$ (1,774)	$ (13,633)	$ (50,090)
Other comprehensive income (loss):
Change in value on risk management derivatives	(21,080)	1,072	(29,234)	23,521
Reclassification of gains on derivatives to earnings, net	3,807	(9,743)	(626)	(13,692)
Other comprehensive income (loss)	(17,273)	(8,671)	(29,860)	9,829
Comprehensive income (loss)	26,602	(10,445)	(43,493)	(40,261)
Less: comprehensive income (loss) attributable to noncontrolling interest	357	(19)	(263)	(234)
Comprehensive income (loss) attributable to Ferrellgas Partners, LP	26,245	(10,426)	(43,230)	(40,027)
Ferrellgas, L.P. [Member]
Comprehensive income (loss):
Net earnings (loss)	52,617	6,847	3,803	(32,852)
Other comprehensive income (loss):
Change in value on risk management derivatives	(21,080)	1,072	(29,234)	23,521
Reclassification of gains on derivatives to earnings, net	3,807	(9,743)	(626)	(13,692)
Other comprehensive income (loss)	(17,273)	(8,671)	(29,860)	9,829
Comprehensive income (loss)	35,344	(1,824)	(26,057)	(23,023)
Comprehensive income (loss) attributable to Ferrellgas Partners, LP	$ 35,344	$ (1,824)	$ (26,057)	$ (23,023)