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Fair Value of Financial Instruments (Narrative) (Details) - USD ($)
Sep. 30, 2015
Dec. 31, 2014
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]    
Liabilities, Fair Value Disclosure, Recurring $ 296,325,000 $ 294,219,000
Level 2 [Member]    
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]    
Liabilities, Fair Value Disclosure, Recurring 296,059,000 $ 294,025,000
Level 2 [Member] | Secured Notes One [Member]    
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]    
Secured notes 120,000,000  
Level 2 [Member] | Secured Notes Two [Member]    
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]    
Secured notes $ 20,000,000