Fair Value Measurements (Assets And Liabilities Fair Value Hierarchy) (Details) - USD ($) $ in Thousands |
Jan. 31, 2016 |
Jul. 31, 2015 |
| Interest rate swap assets |
$ 3,890
|
$ 1,828
|
| Propane commodity derivative assets |
6,957
|
4,655
|
| Interest rate swap liabilities |
(4,210)
|
(4,748)
|
| Propane commodity derivative liabilities |
(42,745)
|
(42,375)
|
| Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value |
0
|
(100)
|
| Ferrellgas, L.P. [Member] |
|
|
| Interest rate swap assets |
3,890
|
1,828
|
| Propane commodity derivative assets |
6,957
|
4,655
|
| Interest rate swap liabilities |
(4,210)
|
(4,748)
|
| Propane commodity derivative liabilities |
(42,745)
|
(42,375)
|
| Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value |
0
|
(100)
|
| Fair Value, Inputs, Level 1 [Member] |
|
|
| Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value |
|
0
|
| Fair Value, Inputs, Level 1 [Member] | Ferrellgas, L.P. [Member] |
|
|
| Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value |
|
0
|
| Fair Value, Inputs, Level 2 [Member] |
|
|
| Interest rate swap assets |
3,890
|
1,828
|
| Propane commodity derivative assets |
6,957
|
4,655
|
| Interest rate swap liabilities |
(4,210)
|
(4,748)
|
| Propane commodity derivative liabilities |
(42,745)
|
(42,375)
|
| Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value |
|
0
|
| Fair Value, Inputs, Level 2 [Member] | Ferrellgas, L.P. [Member] |
|
|
| Interest rate swap assets |
3,890
|
1,828
|
| Propane commodity derivative assets |
6,957
|
4,655
|
| Interest rate swap liabilities |
(4,210)
|
(4,748)
|
| Propane commodity derivative liabilities |
$ (42,745)
|
(42,375)
|
| Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value |
|
0
|
| Fair Value, Inputs, Level 3 [Member] |
|
|
| Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value |
|
(100)
|
| Fair Value, Inputs, Level 3 [Member] | Ferrellgas, L.P. [Member] |
|
|
| Fair Value, Measurement with Unobservable Inputs Reconciliations, Recurring Basis, Liability Value |
|
$ (100)
|