Quarterly report pursuant to Section 13 or 15(d)

Income Taxes Income Taxes (Details)

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Income Taxes Income Taxes (Details) (USD $)
3 Months Ended 6 Months Ended
Jun. 30, 2012
Jun. 30, 2011
Jun. 30, 2012
Jun. 30, 2011
Dec. 31, 2010
Federal [Member]
Income Tax Disclosure [Line Items]          
Liability for international income taxes $ (144,000) $ 0 $ (150,000) $ 0  
Net operating loss carryforward that will be subject to annual NOL utilization limitation         $ 881,000,000