Document And Entity Information (USD $)	12 Months Ended
	Jul. 31, 2013	Aug. 31, 2013	Jan. 31, 2013
Entity Registrant Name	FERRELLGAS PARTNERS L P
Entity Central Index Key	0000922358
Document Type	10-K
Amendment Flag	false
Document Period End Date	Jul. 31, 2013
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	Q4
Current Fiscal Year End Date	--07-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding		79,072,819
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Public Float			$ 1,023,878,663
Entity Well-known Seasoned Issuer	Yes
Trading Symbol	fgp
Ferrellgas Partners Finance Corp. [Member]
Entity Registrant Name	FERRELLGAS PARTNERS FINANCE CORP
Entity Central Index Key	0001012493
Document Type	10-K
Amendment Flag	false
Document Period End Date	Jul. 31, 2013
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	Q4
Current Fiscal Year End Date	--07-31
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding		1,000
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Well-known Seasoned Issuer	No
Ferrellgas, L.P. [Member]
Entity Registrant Name	FERRELLGAS L P
Entity Central Index Key	0000922359
Document Type	10-K
Amendment Flag	false
Document Period End Date	Jul. 31, 2013
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	Q4
Current Fiscal Year End Date	--07-31
Entity Filer Category	Non-accelerated Filer
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Well-known Seasoned Issuer	No
Ferrellgas Finance Corp. [Member]
Entity Registrant Name	FERRELLGAS FINANCE CORP
Entity Central Index Key	0000922360
Document Type	10-K
Amendment Flag	false
Document Period End Date	Jul. 31, 2013
Document Fiscal Year Focus	2013
Document Fiscal Period Focus	Q4
Current Fiscal Year End Date	--07-31
Entity Filer Category	Non-accelerated Filer
Entity Common Stock, Shares Outstanding		1,000
Entity Voluntary Filers	No
Entity Current Reporting Status	Yes
Entity Well-known Seasoned Issuer	No