Partnership Organization And Formation (Details)	6 Months Ended
	Jan. 31, 2014 employee	Jul. 31, 2013
Limited partner interest	99.00%
General partner ownership interest	1.00%
Number of entity subsidiaries	2
Equity interest in subsidiary	100.00%
Number of states in which entity operates	50
Number of employees	0
Ferrellgas Partners Finance Corp. [Member]
Common stock shares outstanding	1,000	1,000
Corporation formation date	Mar. 28, 1996
Number of employees	0
Ferrellgas, L.P. [Member]
Limited partner interest	99.00%
General partner ownership interest	1.00%
Equity interest in subsidiary	100.00%
Number of states in which entity operates	50
Number of employees	0
Ferrellgas Finance Corp. [Member]
Common stock shares outstanding	1,000	1,000
Corporation formation date	Jan. 16, 2003
Number of employees	0
Ferrell Companies [Member]
Common stock shares outstanding	21,700,000
Operating Partnership [Member]
General partner ownership interest	1.00%
Ferrellgas [Member]
General partner ownership interest	2.00%