Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	12 Months Ended
	Jul. 31, 2019	Jul. 31, 2018	Jul. 31, 2017
Comprehensive income (loss):
Net loss	$ (64,545)	$ (256,825)	$ (54,501)
Other comprehensive income (loss):
Change in value on risk management derivatives	(48,184)	30,231	22,525
Reclassification of (gains) losses on derivatives to earnings, net	12,868	(24,319)	1,938
Foreign currency translation adjustment			320
Pension liability adjustment	(64)	57	541
Other comprehensive income (loss)	(35,380)	5,969	25,324
Comprehensive loss	(99,925)	(250,856)	(29,177)
Less: comprehensive loss attributable to noncontrolling interest	(656)	(2,184)	(39)
Comprehensive loss attributable to Ferrellgas Partners, LP	(99,269)	(248,672)	(29,138)
Ferrellgas, L.P. [Member]
Comprehensive income (loss):
Net loss	(29,517)	(222,146)	(29,059)
Other comprehensive income (loss):
Change in value on risk management derivatives	(48,184)	30,231	22,525
Reclassification of (gains) losses on derivatives to earnings, net	12,868	(24,319)	1,938
Foreign currency translation adjustment			320
Pension liability adjustment	(64)	57	541
Other comprehensive income (loss)	(35,380)	5,969	25,324
Comprehensive loss	$ (64,897)	$ (216,177)	$ (3,735)