Loans and Allowance for Loan Losses (Impaired Loans) (Details) (USD $)	6 Months Ended		12 Months Ended
	Jun. 30, 2014		Dec. 31, 2013
Financing Receivable, Impaired [Line Items]
Impaired loans, no individually reviewed for impairment	$ 4,750,000		$ 4,612,000
Impaired loans, individually reviewed, with no impairment	29,890,000		39,865,000
Impaired loans, individually reviewed, with impairment	9,693,000		2,965,000
Total impaired loans, excluding purchased impaired	44,333,000	[1]	47,442,000	[1]
Purchased impaired loans with subsequent deterioration	141,924,000		161,307,000
Purchased impaired loans with no subsequent deterioration	0		345,000
Impaired loan, individually reviewed, with impairment, associated reserves	855,000	[1]	927,000	[1]
Purchased impaired loans with subsequent deterioration, associated reserves	4,123,000		5,560,000
Impaired financing receivable, including deteriorated loans purchased, related allowance	4,978,000		6,487,000
Impaired financing receivable, simple average balance	45,888,000		65,527,000
Restructured loans	17,800,000		18,100,000
Performing [Member]
Financing Receivable, Impaired [Line Items]
Restructured loans	$ 12,900,000		$ 12,100,000

[1] * Included at June 30, 2014 and December 31, 2013 were $12.9 million and $12.1 million, respectively, in restructured and performing loans.