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Loans and Related Allowance for Loan Losses (Modification of Troubled Debt Restructuring by Class) (Details) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2016 USD ($) loan | Mar. 31, 2015 USD ($) loan
Temporary Rate Modification [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | loan | 0 | 0
Recorded Investment | $ | $ 0 | $ 0
Temporary Rate Modification [Member] | Commercial real estate- non owner-occupied [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | loan | 0 | 0
Recorded Investment | $ | $ 0 | $ 0
Temporary Rate Modification [Member] | Commercial real estate- all other CRE [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | loan | 0 | 0
Recorded Investment | $ | $ 0 | $ 0
Temporary Rate Modification [Member] | Acquisition and development- 1-4 family residential construction [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | loan | 0 | 0
Recorded Investment | $ | $ 0 | $ 0
Temporary Rate Modification [Member] | All Other Acquisition and Development [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | loan | 0 | 0
Recorded Investment | $ | $ 0 | $ 0
Temporary Rate Modification [Member] | Commercial and industrial [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | loan | 0 | 0
Recorded Investment | $ | $ 0 | $ 0
Temporary Rate Modification [Member] | Residential mortgage- term [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | loan | 0 | 0
Recorded Investment | $ | $ 0 | $ 0
Temporary Rate Modification [Member] | Residential mortgage- home equity [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | loan | 0 | 0
Recorded Investment | $ | $ 0 | $ 0
Temporary Rate Modification [Member] | Consumer [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | loan | 0 | 0
Recorded Investment | $ | $ 0 | $ 0
Extended Maturity [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | loan | 1 | 6
Recorded Investment | $ | $ 203 | $ 4,068
Extended Maturity [Member] | Commercial real estate- non owner-occupied [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | loan | 0 | 1
Recorded Investment | $ | $ 0 | $ 3,097
Extended Maturity [Member] | Commercial real estate- all other CRE [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | loan | 1 | 0
Recorded Investment | $ | $ 203 | $ 0
Extended Maturity [Member] | Acquisition and development- 1-4 family residential construction [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | loan | 0 | 0
Recorded Investment | $ | $ 0 | $ 0
Extended Maturity [Member] | All Other Acquisition and Development [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | loan | 0 | 3
Recorded Investment | $ | $ 0 | $ 372
Extended Maturity [Member] | Commercial and industrial [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | loan | 0 | 0
Recorded Investment | $ | $ 0 | $ 0
Extended Maturity [Member] | Residential mortgage- term [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | loan | 0 | 2
Recorded Investment | $ | $ 0 | $ 599
Extended Maturity [Member] | Residential mortgage- home equity [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | loan | 0 | 0
Recorded Investment | $ | $ 0 | $ 0
Extended Maturity [Member] | Consumer [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | loan | 0 | 0
Recorded Investment | $ | $ 0 | $ 0
Modification Of Payment And Other Terms [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | loan | 2 | 7
Recorded Investment | $ | $ 558 | $ 4,099
Modification Of Payment And Other Terms [Member] | Commercial real estate- non owner-occupied [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | loan | 0 | 1
Recorded Investment | $ | $ 0 | $ 136
Modification Of Payment And Other Terms [Member] | Commercial real estate- all other CRE [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | loan | 0 | 5
Recorded Investment | $ | $ 0 | $ 3,847
Modification Of Payment And Other Terms [Member] | Acquisition and development- 1-4 family residential construction [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | loan | 0 | 0
Recorded Investment | $ | $ 0 | $ 0
Modification Of Payment And Other Terms [Member] | All Other Acquisition and Development [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | loan | 0 | 0
Recorded Investment | $ | $ 0 | $ 0
Modification Of Payment And Other Terms [Member] | Commercial and industrial [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | loan | 1 | 0
Recorded Investment | $ | $ 486 | $ 0
Modification Of Payment And Other Terms [Member] | Residential mortgage- term [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | loan | 1 | 1
Recorded Investment | $ | $ 72 | $ 116
Modification Of Payment And Other Terms [Member] | Residential mortgage- home equity [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | loan | 0 | 0
Recorded Investment | $ | $ 0 | $ 0
Modification Of Payment And Other Terms [Member] | Consumer [Member] |  |
Financing Receivable, Modifications [Line Items] |  |
Number of Contracts | loan | 0 | 0
Recorded Investment | $ | $ 0 | $ 0

X
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