Allowance for Loan Losses Schedule of Troubled Debt Restructuring Current Period (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2013
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
financing receivable, modifications, subsequent default, number of contracts at period end	150
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 6,681
C&I
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
financing receivable, modifications, subsequent default, number of contracts at period end	2
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	1,802
C&I | Originated Loans
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
financing receivable, modifications, subsequent default, number of contracts at period end	2
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	1,802
C&I | Covered Loans
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
financing receivable, modifications, subsequent default, number of contracts at period end	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0
Commercial Real Estate
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
financing receivable, modifications, subsequent default, number of contracts at period end	4
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	2,668
Commercial Real Estate | Originated Loans
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
financing receivable, modifications, subsequent default, number of contracts at period end	4
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	2,668
Commercial Real Estate | Covered Loans
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
financing receivable, modifications, subsequent default, number of contracts at period end	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0
Construction
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
financing receivable, modifications, subsequent default, number of contracts at period end	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0
Construction | Originated Loans
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
financing receivable, modifications, subsequent default, number of contracts at period end	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0
Construction | Covered Loans
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
financing receivable, modifications, subsequent default, number of contracts at period end	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0
Total commercial
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
financing receivable, modifications, subsequent default, number of contracts at period end	6
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	4,470
Total commercial | Originated Loans
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
financing receivable, modifications, subsequent default, number of contracts at period end	6
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	4,470
Total commercial | Covered Loans
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
financing receivable, modifications, subsequent default, number of contracts at period end	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0
Consumer Installment
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
financing receivable, modifications, subsequent default, number of contracts at period end	127
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	1,964
Consumer Installment | Originated Consumer Loans
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
financing receivable, modifications, subsequent default, number of contracts at period end	127
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	1,964
Home Equity Line of Credit
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
financing receivable, modifications, subsequent default, number of contracts at period end	10
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	204
Home Equity Line of Credit | Originated Consumer Loans
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
financing receivable, modifications, subsequent default, number of contracts at period end	10
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	204
Consumer Credit Card Financing Receivable
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
financing receivable, modifications, subsequent default, number of contracts at period end	7
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	43
Consumer Credit Card Financing Receivable | Originated Consumer Loans
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
financing receivable, modifications, subsequent default, number of contracts at period end	7
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	43
Residential mortgages
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
financing receivable, modifications, subsequent default, number of contracts at period end	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0
Residential mortgages | Originated Consumer Loans
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
financing receivable, modifications, subsequent default, number of contracts at period end	0
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	0
Total consumer
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
financing receivable, modifications, subsequent default, number of contracts at period end	144
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	2,211
Total consumer | Originated Consumer Loans
Troubled Debt Restructuring, Debtor, Current Period [Line Items]
financing receivable, modifications, subsequent default, number of contracts at period end	144
Financing Receivable, Modifications, Subsequent Default, Recorded Investment	$ 2,211