Consolidated Statements of Comprehensive Income - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jan. 31, 2018	Jan. 31, 2017	Jan. 31, 2018	Jan. 31, 2017
Net earnings (loss)	$ (1,774)	$ 38,528	$ (50,090)	$ (4,943)
Other comprehensive income (loss):
Change in value of risk management derivatives	1,072	15,262	23,521	20,400
Reclassification of derivative gains and losses to earnings	(9,743)	514	(13,692)	4,752
Other comprehensive income (loss)	(8,671)	15,776	9,829	25,152
Comprehensive income	(10,445)	54,304	(40,261)	20,209
Less: Comprehensive income attributable to noncontrolling interest	(19)	590	(234)	286
Comprehensive income attributable to Ferrellgas Partners, LP	(10,426)	53,714	(40,027)	19,923
Ferrellgas, L.P. [Member]
Net earnings (loss)	6,847	42,600	(32,852)	3,160
Other comprehensive income (loss):
Change in value of risk management derivatives	1,072	15,262	23,521	20,400
Reclassification of derivative gains and losses to earnings	(9,743)	514	(13,692)	4,752
Other comprehensive income (loss)	(8,671)	15,776	9,829	25,152
Comprehensive income	$ (1,824)	$ 58,376	$ (23,023)	$ 28,312