|
Income Taxes Schedule of Deferred Tax Assets and Liabilities (Details) (USD $)
In Thousands, unless otherwise specified |
Dec. 31, 2011
|
Dec. 31, 2010
|
|---|---|---|
| Deferred Tax Assets and Liabilities [Line Items] | ||
| Deferred Tax Assets, Derivative Instruments | $ 7,429 | $ 392 |
| Deferred Tax Assets, Unrealized Losses on Trading Securities | (1,038) | 162 |
| Deferred Tax Assets (Liabilities), Net | $ 6,391 | $ 554 |
| X | ||||||||||
|
- Details
|
| X | ||||||||||
|
- Definition
The tax effect as of the balance sheet date of the amount of the estimated future tax deductions attributable to derivative instruments which can only be deducted for tax purposes when losses on such instruments are realized, and which can only be realized if sufficient tax-basis income is generated in future periods to enable the deduction to be taken. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
For entities that net deferred tax assets and tax liabilities, represents the unclassified net amount of deferred tax assets and liabilities as of the balance sheet date, which result from applying the applicable enacted tax rate to net temporary differences and carryforwards pertaining to assets or liabilities. A temporary difference is a difference between the tax basis of an asset or liability and its carrying amount in the financial statements prepared in accordance with generally accepted accounting principles that will reverse in ensuing periods. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|
| X | ||||||||||
|
- Definition
The tax effect as of the balance sheet date of the amount of the estimated future tax deductions arising from unrealized losses on trading securities which can only be deducted for tax purposes when the losses are realized, and which can only be realized if sufficient tax-basis income is generated in future periods to enable the deduction to be taken. Reference 1: http://www.xbrl.org/2003/role/presentationRef
|