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Securities (Schedule of Contractual Maturities of Securities) (Details) - USD ($) $ in Thousands | Sep. 30, 2016 | Dec. 31, 2015
--- | --- | ---
Available for Sale, Amortized Cost |  |
Available for sale Securities, Amortized Cost | $ 376,520 | $ 365,140
Available for Sale, Fair Value |  |
Available for sale Securities, Fair Value, Total | 387,008 | 367,249
Held to Maturity, Amortized Cost |  |
Held to maturity Securities, Amortized Cost | 430,763 | 477,507
Held to Maturity, Fair Value |  |
Held to Maturity, Fair Value, Total | 441,834 | $ 478,749
Debt Securities |  |
Available for Sale, Amortized Cost |  |
Available for Sale, Amortized Cost, Due in one year or less | 999 |
Available for Sale, Amortized Cost, Due after one year to five years | 30,422 |
Available for Sale, Amortized Cost, Due after five to ten years | 86,511 |
Available for Sale, Amortized Cost, Due after ten years | 239,588 |
Available for sale Securities, Amortized Cost | 357,520 |
Available for Sale, Fair Value |  |
Available for Sale, Fair Value, Due in one year or less | 1,003 |
Available for Sale, Fair Value, Due after one year to five years | 31,258 |
Available for Sale, Fair Value, Due after five to ten years | 89,455 |
Available for Sale, Fair Value, Due after ten years | 245,834 |
Available for sale Securities, Fair Value, Total | 367,550 |
Held to Maturity, Amortized Cost |  |
Held to Maturity, Amortized Cost, Due in one year or less | 11 |
Held to Maturity, Amortized Cost, Due after one year to five years | 16,099 |
Held to Maturity, Amortized Cost, Due after five to ten years | 24,594 |
Held to Maturity, Amortized Cost, Due after ten years | 390,059 |
Held to maturity Securities, Amortized Cost | 430,763 |
Held to Maturity, Fair Value |  |
Held to Maturity, Fair Value, Due in one year or less | 11 |
Held to Maturity, Fair Value, Due after one year to five years | 16,739 |
Held to Maturity, Fair Value, Due after five to ten years | 25,602 |
Held to Maturity, Fair Value, Due after ten years | 399,482 |
Held to Maturity, Fair Value, Total | 441,834 |
Equity securities |  |
Available for Sale, Amortized Cost |  |
Available for Sale, Amortized Cost, Marketable equity securities | 19,000 |
Available for Sale, Fair Value |  |
Available for Sale, Fair Value, Marketable equity securities | 19,458 |
Held to Maturity, Amortized Cost |  |
Held to maturity Securities, Amortized Cost | 0 |
Held to Maturity, Fair Value |  |
Held to Maturity, Fair Value, Total | $ 0 |

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