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Income Taxes (Narrative) (Details) (USD $)
In Millions, unless otherwise specified
 12 Months Ended
Dec. 31, 2014
Income Tax Disclosure [Line Items]  
Deferred tax asset, operating loss carryforwards 2.0us-gaap_DeferredTaxAssetsOperatingLossCarryforwardsStateAndLocal
Federal [Member]  
Income Tax Disclosure [Line Items]  
Net operating loss carryforwards 94.7us-gaap_OperatingLossCarryforwards
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_InternalRevenueServiceIRSMember
State and Local Jurisdiction [Member]  
Income Tax Disclosure [Line Items]  
Valuation allowance, operating loss carryforwards 0.2us-gaap_OperatingLossCarryforwardsValuationAllowance
/ us-gaap_IncomeTaxAuthorityAxis
= us-gaap_StateAndLocalJurisdictionMember
Minimum [Member] | State and Local Jurisdiction [Member]  
Income Tax Disclosure [Line Items]  
Operating loss carryforwards, remaining life 1 year
Maximum [Member] | State and Local Jurisdiction [Member]  
Income Tax Disclosure [Line Items]  
Operating loss carryforwards, remaining life 20 years