Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jan. 31, 2021	Jan. 31, 2020	Jan. 31, 2021	Jan. 31, 2020
Comprehensive income (loss):
Net income (loss)	$ 63,991	$ 48,791	$ 17,538	$ 3,074
Other comprehensive income (loss):
Change in value on risk management derivatives	36,957	(11,212)	42,724	(24,839)
Reclassification of (gains) losses on derivatives to earnings, net	(8,441)	8,766	(6,291)	16,245
Pension liability adjustment		(109)		(109)
Other comprehensive income (loss)	28,516	(2,555)	36,433	(8,703)
Comprehensive loss	92,507	46,236	53,971	(5,629)
Less: comprehensive income (loss) attributable to noncontrolling interest	288	557	368	122
Comprehensive income (loss) attributable to Ferrellgas Partners, LP	92,219	45,679	53,603	(5,751)
Ferrellgas, L.P. [Member]
Comprehensive income (loss):
Net income (loss)	71,750	57,756	32,999	20,858
Other comprehensive income (loss):
Change in value on risk management derivatives	36,957	(11,212)	42,724	(24,839)
Reclassification of (gains) losses on derivatives to earnings, net	(8,441)	8,766	(6,291)	16,245
Pension liability adjustment		(109)		(109)
Other comprehensive income (loss)	28,516	(2,555)	36,433	(8,703)
Comprehensive loss	100,266	55,201	69,432	12,155
Comprehensive income (loss) attributable to Ferrellgas Partners, LP	$ 100,266	$ 55,201	$ 69,432	$ 12,155