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Income Taxes (Details) (USD $) | Dec. 31, 2010 | Dec. 31, 2009
--- | --- | ---
Income Taxes [Abstract] |  |
Prepaid federal income taxes | $ 39,700,000 |
Prepaid state income taxes | 1,700,000 | 700,000
Prepaid income taxes | 41,397,000 | 717,000
Accrued federal income taxes |  | $ 2,000,000

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- Definition Carrying amount as of the balance sheet date of payments made in advance for income and other taxes, which will be charged against earnings within one year or the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 43 -Chapter 3 -Section A -Paragraph 4 + Details
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