| **Investment Securities (Other Investments) (Details) (USD $)In Thousands, unless otherwise specified** | Dec. 31, 2014                                                                                      | Dec. 31, 2013                                                                                      |
|---------------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------|----------------------------------------------------------------------------------------------------|
| **Schedule of Cost-method Investments [Line Items]**                                                    |                                                                                               |                                                                                               |
| Federal Home Loan Bank Stock                                                                            | $ 4,900us-gaap_FederalHomeLoanBankStock                                                            | $ 5,900us-gaap_FederalHomeLoanBankStock                                                            |
| Federal Reserve Bank Stock                                                                              | 4,700us-gaap_FederalReserveBankStock                                                               | 3,100us-gaap_FederalReserveBankStock                                                               |
| Other Assets [Member]                                                                                   |                                                                                               |                                                                                               |
| **Schedule of Cost-method Investments [Line Items]**                                                    |                                                                                               |                                                                                               |
| Federal Home Loan Bank Stock                                                                            | 4,855us-gaap_FederalHomeLoanBankStock/ us-gaap_BalanceSheetLocationAxis= us-gaap_OtherAssetsMember | 5,878us-gaap_FederalHomeLoanBankStock/ us-gaap_BalanceSheetLocationAxis= us-gaap_OtherAssetsMember |
| Federal Reserve Bank Stock                                                                              | 4,713us-gaap_FederalReserveBankStock/ us-gaap_BalanceSheetLocationAxis= us-gaap_OtherAssetsMember  | 4,264us-gaap_FederalReserveBankStock/ us-gaap_BalanceSheetLocationAxis= us-gaap_OtherAssetsMember  |
| Other investments                                                                                       | $ 9,568us-gaap_CostMethodInvestments/ us-gaap_BalanceSheetLocationAxis= us-gaap_OtherAssetsMember  | $ 10,142us-gaap_CostMethodInvestments/ us-gaap_BalanceSheetLocationAxis= us-gaap_OtherAssetsMember |

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| - Definition
Amount, after adjustment, of cost-method investment. Adjustments include, but are not limited to, dividends received in excess of earnings after date of investment that are considered a return of investment and other than temporary impairments.
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.12) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 325 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6872867&loc=d3e40691-111596Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 325 -SubTopic 20 -Section 35 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=29638308&loc=d3e40346-111594
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| X                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                               |
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| - Definition
Federal Home Loan Bank (FHLB) stock represents an equity interest in a FHLB. It does not have a readily determinable fair value because its ownership is restricted and it lacks a market (liquidity).
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 325 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6478792&loc=d3e63345-112809
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| - Definition
Federal Reserve Bank stock represents an equity interest in the Federal Reserve Bank. It does not have a readily determinable fair value because its ownership is restricted and it lacks a market (liquidity).
+ References
Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 942 -SubTopic 325 -Section 45 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6478792&loc=d3e63345-112809
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