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Summary of Significant Accounting Policies Receivables (Details) (USD $)
Dec. 31, 2014
Dec. 31, 2013
Accounts, Notes, Loans and Financing Receivable [Line Items]    
Mortgage Loans on Real Estate, Commercial and Consumer, Net $ 400,000us-gaap_MortgageLoansOnRealEstateCommercialAndConsumerNet  
Valuation allowance for deferred tax assets $ 129,862,000us-gaap_DeferredTaxAssetsValuationAllowance $ 130,232,000us-gaap_DeferredTaxAssetsValuationAllowance