Loans and Leases (Details 11) (USD $) In Thousands, unless otherwise specified	Dec. 31, 2014	Dec. 31, 2013
Financing Receivable Recorded Investment By Credit Risk [Line Items]
Loans And Leases Net Of Discounts Covered	$ 290,791	$ 382,796
Nonclassified [Member]
Financing Receivable Recorded Investment By Credit Risk [Line Items]
Loans And Leases Net Of Discounts Covered	158,503	221,060
Classified [Member]
Financing Receivable Recorded Investment By Credit Risk [Line Items]
Loans And Leases Net Of Discounts Covered	132,288	161,736
Purchased Credit Impaired Loans and Leases [Member]
Financing Receivable Recorded Investment By Credit Risk [Line Items]
Loans And Leases Net Of Discounts Covered	290,852	382,796
Mortgage Loans on Real Estate [Member]
Financing Receivable Recorded Investment By Credit Risk [Line Items]
Loans And Leases Net Of Discounts Covered	256,489	371,134
Loans And Leases PCI Net Of Discounts And Earned Income	256,442	371,134
Mortgage Loans on Real Estate [Member] | Nonclassified [Member]
Financing Receivable Recorded Investment By Credit Risk [Line Items]
Loans And Leases Net Of Discounts Covered	155,281	216,092
Mortgage Loans on Real Estate [Member] | Classified [Member]
Financing Receivable Recorded Investment By Credit Risk [Line Items]
Loans And Leases Net Of Discounts Covered	101,161	155,042
Real Estate Construction [Member]
Financing Receivable Recorded Investment By Credit Risk [Line Items]
Loans And Leases Net Of Discounts Covered	6,924	10,427
Loans And Leases PCI Net Of Discounts And Earned Income	6,911	10,427
Real Estate Construction [Member] | Nonclassified [Member]
Financing Receivable Recorded Investment By Credit Risk [Line Items]
Loans And Leases Net Of Discounts Covered	3,010	4,399
Real Estate Construction [Member] | Classified [Member]
Financing Receivable Recorded Investment By Credit Risk [Line Items]
Loans And Leases Net Of Discounts Covered	3,901	6,028
Commercial Portfolio Segment [Member]
Financing Receivable Recorded Investment By Credit Risk [Line Items]
Loans And Leases Net Of Discounts Covered	27,155	974
Loans And Leases PCI Net Of Discounts And Earned Income	27,154	974
Commercial Portfolio Segment [Member] | Nonclassified [Member]
Financing Receivable Recorded Investment By Credit Risk [Line Items]
Loans And Leases Net Of Discounts Covered	212	569
Commercial Portfolio Segment [Member] | Classified [Member]
Financing Receivable Recorded Investment By Credit Risk [Line Items]
Loans And Leases Net Of Discounts Covered	26,942	405
Consumer Portfolio Segment [Member]
Financing Receivable Recorded Investment By Credit Risk [Line Items]
Loans And Leases Net Of Discounts Covered	284	261
Loans And Leases PCI Net Of Discounts And Earned Income	284	261
Consumer Portfolio Segment [Member] | Nonclassified [Member]
Financing Receivable Recorded Investment By Credit Risk [Line Items]
Loans And Leases Net Of Discounts Covered	0	0
Consumer Portfolio Segment [Member] | Classified [Member]
Financing Receivable Recorded Investment By Credit Risk [Line Items]
Loans And Leases Net Of Discounts Covered	$ 284	$ 261