FAIR VALUE - HIERARCHY (Details) (USD $) In Thousands, unless otherwise specified
|
Mar. 31, 2013
|
Sep. 30, 2012
|
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
Derivative assets, fair value disclosure |
$ 42,933 |
|
$ 50,349 |
|
Fair Value, Measurements, Recurring [Member]
|
|
|
|
|
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
Available-for-sale securities, fair value disclosure |
11,563 |
[1] |
11,009 |
[1] |
Other assets, fair value disclosure |
36 |
[2] |
30 |
[2] |
Assets fair value disclosure total |
54,532 |
|
61,388 |
|
Other liabilities fair value disclosure |
0 |
|
0 |
|
Liabilities fair value disclosure |
47,835 |
|
45,573 |
|
Fair Value, Measurements, Recurring [Member] | Physical Forward Commodity Contracts [Member]
|
|
|
|
|
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
Derivative assets, fair value disclosure |
10,730 |
|
20,248 |
|
Derivative liabilities, fair value disclosure |
4,722 |
|
9,746 |
|
Fair Value, Measurements, Recurring [Member] | Financial Commodity Contracts [Member]
|
|
|
|
|
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
Derivative assets, fair value disclosure |
32,132 |
|
29,915 |
|
Derivative liabilities, fair value disclosure |
43,087 |
|
35,715 |
|
Fair Value, Measurements, Recurring [Member] | Financial commodity contracts - foreign exchange [Member]
|
|
|
|
|
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
Derivative assets, fair value disclosure |
71 |
|
186 |
|
Derivative liabilities, fair value disclosure |
26 |
|
112 |
|
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets, (Level 1) [Member]
|
|
|
|
|
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
Available-for-sale securities, fair value disclosure |
11,563 |
[1] |
11,009 |
[1] |
Other assets, fair value disclosure |
36 |
[2] |
30 |
[2] |
Assets fair value disclosure total |
43,597 |
|
25,309 |
|
Other liabilities fair value disclosure |
0 |
|
0 |
|
Liabilities fair value disclosure |
43,087 |
|
16,922 |
|
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets, (Level 1) [Member] | Physical Forward Commodity Contracts [Member]
|
|
|
|
|
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
Derivative assets, fair value disclosure |
0 |
|
0 |
|
Derivative liabilities, fair value disclosure |
0 |
|
0 |
|
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets, (Level 1) [Member] | Financial Commodity Contracts [Member]
|
|
|
|
|
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
Derivative assets, fair value disclosure |
31,998 |
|
14,270 |
|
Derivative liabilities, fair value disclosure |
43,087 |
|
16,922 |
|
Fair Value, Measurements, Recurring [Member] | Quoted Prices in Active Markets for Identical Assets, (Level 1) [Member] | Financial commodity contracts - foreign exchange [Member]
|
|
|
|
|
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
Derivative assets, fair value disclosure |
0 |
|
0 |
|
Derivative liabilities, fair value disclosure |
0 |
|
0 |
|
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member]
|
|
|
|
|
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
Available-for-sale securities, fair value disclosure |
0 |
[1] |
0 |
[1] |
Other assets, fair value disclosure |
0 |
[2] |
0 |
[2] |
Assets fair value disclosure total |
10,935 |
|
36,079 |
|
Other liabilities fair value disclosure |
0 |
|
0 |
|
Liabilities fair value disclosure |
4,748 |
|
28,651 |
|
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Physical Forward Commodity Contracts [Member]
|
|
|
|
|
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
Derivative assets, fair value disclosure |
10,730 |
|
20,248 |
|
Derivative liabilities, fair value disclosure |
4,722 |
|
9,746 |
|
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Financial Commodity Contracts [Member]
|
|
|
|
|
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
Derivative assets, fair value disclosure |
134 |
|
15,645 |
|
Derivative liabilities, fair value disclosure |
0 |
|
18,793 |
|
Fair Value, Measurements, Recurring [Member] | Significant Other Observable Inputs (Level 2) [Member] | Financial commodity contracts - foreign exchange [Member]
|
|
|
|
|
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
Derivative assets, fair value disclosure |
71 |
|
186 |
|
Derivative liabilities, fair value disclosure |
26 |
|
112 |
|
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member]
|
|
|
|
|
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
Available-for-sale securities, fair value disclosure |
0 |
[1] |
0 |
[1] |
Other assets, fair value disclosure |
0 |
[2] |
0 |
[2] |
Assets fair value disclosure total |
0 |
|
0 |
|
Other liabilities fair value disclosure |
0 |
|
0 |
|
Liabilities fair value disclosure |
0 |
|
0 |
|
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Physical Forward Commodity Contracts [Member]
|
|
|
|
|
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
Derivative assets, fair value disclosure |
0 |
|
0 |
|
Derivative liabilities, fair value disclosure |
0 |
|
0 |
|
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Financial Commodity Contracts [Member]
|
|
|
|
|
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
Derivative assets, fair value disclosure |
0 |
|
0 |
|
Derivative liabilities, fair value disclosure |
0 |
|
0 |
|
Fair Value, Measurements, Recurring [Member] | Significant Unobservable Inputs (Level 3) [Member] | Financial commodity contracts - foreign exchange [Member]
|
|
|
|
|
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |
|
|
|
|
Derivative assets, fair value disclosure |
0 |
|
0 |
|
Derivative liabilities, fair value disclosure |
$ 0 |
|
$ 0 |
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