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Partnership Organization And Formation (Details) (USD $)
12 Months Ended 0 Months Ended 0 Months Ended
Jul. 31, 2011
Jul. 31, 2011
Ferrellgas, L.P. And Subsidiaries [Member]
Jan. 24, 2003
Ferrellgas Finance Corp. [Member]
Jul. 31, 2011
Ferrellgas Finance Corp. [Member]
Jul. 31, 2010
Ferrellgas Finance Corp. [Member]
Apr. 08, 1996
Ferrellgas Partners Finance Corp. [Member]
Jul. 31, 2011
Ferrellgas Partners Finance Corp. [Member]
Jul. 31, 2010
Ferrellgas Partners Finance Corp. [Member]
Limited partner interest 99.00% 99.00%            
Corporation formation shares granted to partnership     1,000     1,000    
General partner interest in Ferrellgas partners 1.00%              
General partner interest in the operating partnership 1.00% 1.00%            
General partner interest in Ferrellgas on a combined basis 2.00%              
Equity interest in subsidiary 100.00% 100.00%            
Corporation formation proceeds from partnership     $ 1,000     $ 1,000    
Common stock shares outstanding 20,300,000     1,000 1,000   1,000 1,000
Number of employees 0 0   0     0