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Income Taxes Income Taxes - Valuation Allowance (Details) (USD $) In Millions, unless otherwise specified | 6 Months Ended
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Jun. 30, 2013
Income Taxes [Abstract] |
Reduction in Valuation Allowance Recorded Against Net Deferred Tax Assets | $ 4.5
Deferred Tax Assets, Valuation Allowance | $ 131.3

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- Definition Valuation allowance recorded against the net deferred tax assets generated from the loss for the period. + References No definition available. + Details
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- Definition Amount of deferred tax assets for which it is more likely than not that a tax benefit will not be realized. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 2 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=6907707&loc=d3e32537-109319 + Details
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