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Fair Value Measurements and Disclosure (Details 2) - Junior Subordinated Debt
9 Months Ended 12 Months Ended
Sep. 30, 2015
Dec. 31, 2014
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]    
Valuation Technique Discounted cash flow Discounted cash flow
Discounted Cash Flow Valuation Technique | Significant Unobservable Inputs Level 3    
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]    
Weighted Average (in hundredths) 6.90% 6.87%