Income Taxes (Details 5) (USD $) In Millions, unless otherwise specified	Dec. 31, 2014
Deferred Tax Assets, Operating Loss Carryforwards, Components [Abstract]
U.S. Federal Net Operating Loss	$ 184.1
U.S. State Net Operating Loss	17.3
Foreign Net Operating Losses	53.5
U.S. Tax Credits	37.1
U.S. Alternative Minimum Tax Credit	0.3
Total operating loss and tax credit carry forwards	$ 292.3

Operating loss and tax credit carryforwards total

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible domestic operating loss carryforwards. Excludes state and local operating loss carryforwards.

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Amount before allocation of valuation allowances of deferred tax asset attributable to deductible alternative minimum tax credit carryforwards.

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Amount before allocation of valuation allowances of deferred tax asset attributable to other deductible tax credit carryforwards not separately disclosed.

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