Annual report pursuant to Section 13 and 15(d)

Income Taxes (Narrative) (Details)

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Income Taxes (Narrative) (Details) (USD $)
In Thousands, unless otherwise specified
12 Months Ended
Dec. 31, 2012
Dec. 31, 2011
Dec. 31, 2010
Dec. 31, 2006
Operating Loss Carryforwards [Line Items]        
Reportable Income, Aggregate Basis, Period of Time   3 years    
Ceiling Test, Period of Aggregate Loss Basis       3 years
Operating Loss Carryforwards, Valuation Allowance $ 169,672      
Income Tax Expense 2,223 (69,283) (174)  
Refund Claim Recovery     $ 174