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Fair Value Measurements (Qualitative Information for Level 3 Assets Measured at Fair Value on a Non-Recurring Basis) (Details) - USD ($)
$ in Thousands
3 Months Ended 6 Months Ended
Dec. 31, 2014
Jun. 30, 2015
Unobservable Inputs One | Impaired loans    
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]    
Fair Value $ 20,341 $ 19,030
Valuation Methodology   Appraisals
Unobservable Inputs   Discount for costs to sell
Range of input (percent) 7.00% 7.00%
Unobservable Inputs One | Other real estate owned    
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]    
Fair Value $ 752 $ 423
Valuation Methodology   Appraisals
Unobservable Inputs   Discount for costs to sell
Range of input (percent) 7.00% 7.00%
Unobservable Inputs Two | Impaired loans    
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]    
Unobservable Inputs   Discount for quick sale
Unobservable Inputs Two | Maximum | Impaired loans    
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]    
Range of input (percent) 40.00% 40.00%
Unobservable Inputs Two | Minimum | Impaired loans    
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]    
Range of input (percent) 10.00% 10.00%
Unobservable Inputs Four | Impaired loans    
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]    
Valuation Methodology   Discounted cash flows
Unobservable Inputs   Interest rates
Unobservable Inputs Four | Maximum | Impaired loans    
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]    
Range of input (percent) 7.50% 7.50%
Unobservable Inputs Four | Minimum | Impaired loans    
Fair Value Measurements, Recurring and Nonrecurring, Valuation Techniques [Line Items]    
Range of input (percent) 4.60% 4.60%