Fair Value Measurements (Qualitative Information About Level 3 Assets Measured at Fair Value on a Nonrecurring Basis) (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2014		Dec. 31, 2013
Fair Value Inputs Assets Qualitative Information [Line Items]
Collateral dependent impaired loans	19,096	[1]	34,318	[1]
Nonrecurring [Member]
Fair Value Inputs Assets Qualitative Information [Line Items]
Collateral dependent impaired loans	5,728		11,177
Property acquired through foreclosure or repossession	348		435
Nonrecurring [Member] | Level 3 [Member]
Fair Value Inputs Assets Qualitative Information [Line Items]
Collateral dependent impaired loans	5,728		11,177
Property acquired through foreclosure or repossession	348		435
Nonrecurring [Member] | Level 3 [Member] | Appraisals Of Collateral [Member] | Collateral Dependent Impaired Loans [Member] | Minimum [Member]
Fair Value Inputs Assets Qualitative Information [Line Items]
Discount For Costs To Sell	0.00%		1.00%
Appraisal Adjustments	0.00%	[2]	0.00%	[2]
Nonrecurring [Member] | Level 3 [Member] | Appraisals Of Collateral [Member] | Collateral Dependent Impaired Loans [Member] | Maximum [Member]
Fair Value Inputs Assets Qualitative Information [Line Items]
Discount For Costs To Sell	10.00%		45.00%
Appraisal Adjustments	40.00%	[2]	50.00%	[2]
Nonrecurring [Member] | Level 3 [Member] | Appraisals Of Collateral [Member] | Collateral Dependent Impaired Loans [Member] | Weighted Average [Member]
Fair Value Inputs Assets Qualitative Information [Line Items]
Discount For Costs To Sell	2.00%		11.00%
Appraisal Adjustments	3.00%	[2]	2.00%	[2]
Nonrecurring [Member] | Level 3 [Member] | Appraisals Of Collateral [Member] | Property Acquired Through Foreclosure Or Repossession [Member] | Minimum [Member]
Fair Value Inputs Assets Qualitative Information [Line Items]
Discount For Costs To Sell	6.00%		2.00%
Appraisal Adjustments	5.00%	[2]	0.00%	[2]
Nonrecurring [Member] | Level 3 [Member] | Appraisals Of Collateral [Member] | Property Acquired Through Foreclosure Or Repossession [Member] | Maximum [Member]
Fair Value Inputs Assets Qualitative Information [Line Items]
Discount For Costs To Sell	10.00%		10.00%
Appraisal Adjustments	23.00%	[2]	22.00%	[2]
Nonrecurring [Member] | Level 3 [Member] | Appraisals Of Collateral [Member] | Property Acquired Through Foreclosure Or Repossession [Member] | Weighted Average [Member]
Fair Value Inputs Assets Qualitative Information [Line Items]
Discount For Costs To Sell	8.00%		9.00%
Appraisal Adjustments	14.00%	[2]	13.00%	[2]

[1] The recorded investment in impaired loans consists of unpaid principal balance, net of charge-offs, interest payments received applied to principal and unamortized deferred loan origination fees and costs. For impaired accruing loans (troubled debt restructurings for which management has concluded that the collectibility of the loan is not in doubt), the recorded investment also includes accrued interest.

[2] Management may adjust appraisal values to reflect market value declines or other discounts resulting from its knowledge of the property.