|
Financial Instruments And Risk Management (Narrative) (Details) (USD $)
In Millions, unless otherwise specified |
9 Months Ended | |
|---|---|---|
|
Sep. 30, 2013
property
bu
|
Sep. 30, 2012
bu
|
|
| Derivative [Line Items] | ||
| Purchase commitment contracts of bushels of corn | 10,600,000 | 32,300,000 |
| Sale commitment contracts of bushels of wet and dried grain with solubles | 5,000,000 | 1,500,000 |
| Increase (decrease) in income before taxes due to the impact of marking to market of derivative contracts | $ (4.1) | $ 6.3 |
| Number of ethanol plants | 2 | |
| Cash deposits related to commodity derivative contracts | $ 2.7 | |
|
Price Risk Derivative [Member]
|
||
| Derivative [Line Items] | ||
| Outstanding derivative contracts to sell bushels of corn | 2,200,000 | 6,900,000 |
|
Repurchase Agreement [Member]
|
||
| Derivative [Line Items] | ||
| Outstanding derivative contracts to sell bushels of corn | 1,400,000 | 3,400,000 |