Contingencies And Commitments (Narrative) (Details) (Senior Notes [Member], USD $)	Oct. 31, 2013 Fixed Rate Eight Point Six Two Five Due Two Thousand Twenty [Member] Ferrellgas Partners Finance Corp. [Member]	Oct. 31, 2013 Fixed Rate Six Point Five Zero Due Two Thousand Twenty One [Member] Ferrellgas Finance Corp. [Member]	Oct. 31, 2013 Fixed Rate, 9.125%, Due 2017 [Member] Ferrellgas Finance Corp. [Member]	Dec. 04, 2013 Subsequent Event [Member] Fixed Rate, 9.125%, Due 2017 [Member]	Dec. 04, 2013 Subsequent Event [Member] Fixed Rate, 9.125%, Due 2017 [Member] Ferrellgas, L.P. [Member]	Dec. 04, 2013 Subsequent Event [Member] Fixed Rate, 9.125%, Due 2017 [Member] Ferrellgas Finance Corp. [Member]	Nov. 04, 2013 Subsequent Event [Member] Fixed Rate, 6.75%, Due 2022 [Member]	Nov. 04, 2013 Subsequent Event [Member] Fixed Rate, 6.75%, Due 2022 [Member] Ferrellgas, L.P. [Member]	Nov. 04, 2013 Subsequent Event [Member] Fixed Rate, 6.75%, Due 2022 [Member] Ferrellgas Finance Corp. [Member]
Debt principal amount	$ 182,000,000	$ 500,000,000	$ 300,000,000				$ 325,000,000.0	$ 325,000,000.0	$ 325,000,000.0
Debt interest rate	8.625%	6.50%	9.125%	9.125%	9.125%	9.125%	6.75%	6.75%	6.75%
Debt maturity year	2020	2021	2017			2017	2022	2022	2022
Debt redemption principal amount				$ 300,000,000.0	$ 300,000,000.0	$ 300,000,000.0