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Fair Value Measurements (Assets Measured At Fair Value On A Recurring And Non-Recurring Basis) (Details) - USD ($) $ in Thousands | Mar. 31, 2016 | Dec. 31, 2015
--- | --- | ---
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Securities available for sale |  | $ 610,013 | $ 544,395
Collateral Dependent Impaired Loans [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Assets at fair value | [1] | 1,263 |
Loan Servicing Rights [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Assets at fair value |  | 1,222 |
Other Real Estate Owned [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Assets at fair value | [1] | 187 |
Measured On A Recurring Basis [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Securities available for sale |  | 610,013 | 544,395
Measured On A Recurring Basis [Member] | U.S. Government Agencies And Government Sponsored Enterprises [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Securities available for sale |  | 241,463 | 260,863
Measured On A Recurring Basis [Member] | Mortgage-Backed Securities [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Securities available for sale |  | 368,371 | 283,314
Measured On A Recurring Basis [Member] | Asset-Backed Securities [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Securities available for sale |  | $ 179 | $ 218
Measured On A Recurring Basis [Member] | Level 1 Inputs [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Securities available for sale |  |  |
Measured On A Recurring Basis [Member] | Level 1 Inputs [Member] | U.S. Government Agencies And Government Sponsored Enterprises [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Securities available for sale |  |  |
Measured On A Recurring Basis [Member] | Level 1 Inputs [Member] | Mortgage-Backed Securities [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Securities available for sale |  |  |
Measured On A Recurring Basis [Member] | Level 1 Inputs [Member] | Asset-Backed Securities [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Securities available for sale |  |  |
Measured On A Recurring Basis [Member] | Level 2 Inputs [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Securities available for sale |  | $ 610,013 | $ 544,395
Measured On A Recurring Basis [Member] | Level 2 Inputs [Member] | U.S. Government Agencies And Government Sponsored Enterprises [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Securities available for sale |  | 241,463 | 260,863
Measured On A Recurring Basis [Member] | Level 2 Inputs [Member] | Mortgage-Backed Securities [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Securities available for sale |  | 368,371 | 283,314
Measured On A Recurring Basis [Member] | Level 2 Inputs [Member] | Asset-Backed Securities [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Securities available for sale |  | 179 | 218
Measured On A Nonrecurring Basis [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Assets at fair value |  | 3,281 | 4,319
Measured On A Nonrecurring Basis [Member] | Loans Held For Sale [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Assets at fair value |  | 609 | 1,430
Measured On A Nonrecurring Basis [Member] | Collateral Dependent Impaired Loans [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Assets at fair value |  | 1,263 | 1,485
Measured On A Nonrecurring Basis [Member] | Loan Servicing Rights [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Assets at fair value |  | 1,222 | 1,241
Measured On A Nonrecurring Basis [Member] | Other Real Estate Owned [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Assets at fair value |  | $ 187 | $ 163
Measured On A Nonrecurring Basis [Member] | Level 1 Inputs [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Assets at fair value |  |  |
Measured On A Nonrecurring Basis [Member] | Level 1 Inputs [Member] | Loans Held For Sale [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Assets at fair value |  |  |
Measured On A Nonrecurring Basis [Member] | Level 1 Inputs [Member] | Collateral Dependent Impaired Loans [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Assets at fair value |  |  |
Measured On A Nonrecurring Basis [Member] | Level 1 Inputs [Member] | Loan Servicing Rights [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Assets at fair value |  |  |
Measured On A Nonrecurring Basis [Member] | Level 1 Inputs [Member] | Other Real Estate Owned [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Assets at fair value |  |  |
Measured On A Nonrecurring Basis [Member] | Level 2 Inputs [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Assets at fair value |  | $ 609 | $ 1,430
Measured On A Nonrecurring Basis [Member] | Level 2 Inputs [Member] | Loans Held For Sale [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Assets at fair value |  | 609 | 1,430
Measured On A Nonrecurring Basis [Member] | Level 3 Inputs [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Assets at fair value |  | 2,672 | 2,889
Measured On A Nonrecurring Basis [Member] | Level 3 Inputs [Member] | Collateral Dependent Impaired Loans [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Assets at fair value |  | 1,263 | 1,485
Measured On A Nonrecurring Basis [Member] | Level 3 Inputs [Member] | Loan Servicing Rights [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Assets at fair value |  | 1,222 | 1,241
Measured On A Nonrecurring Basis [Member] | Level 3 Inputs [Member] | Other Real Estate Owned [Member] |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Assets at fair value |  | $ 187 | $ 163
[1] | Fair value is generally determined through independent appraisals of the underlying collateral, which generally include various Level 3 inputs which are not identifiable.

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