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Securities (Schedule of Contractual Maturities of Securities) (Details) - USD ($) $ in Thousands | Jun. 30, 2016 | Dec. 31, 2015
--- | --- | ---
Available for Sale, Amortized Cost |  |
Available for sale Securities, Amortized Cost | $ 378,022 | $ 365,140
Available for Sale, Fair Value |  |
Available for sale Securities, Fair Value, Total | 389,824 | 367,249
Held to Maturity, Amortized Cost |  |
Held to maturity Securities, Amortized Cost | 438,656 | 477,507
Held to Maturity, Fair Value |  |
Held to Maturity, Fair Value, Total | 451,920 | $ 478,749
Debt Securities |  |
Available for Sale, Amortized Cost |  |
Available for Sale, Amortized Cost, Due in one year or less | 0 |
Available for Sale, Amortized Cost, Due after one year to five years | 24,601 |
Available for Sale, Amortized Cost, Due after five to ten years | 96,138 |
Available for Sale, Amortized Cost, Due after ten years | 242,916 |
Available for sale Securities, Amortized Cost | 363,655 |
Available for Sale, Fair Value |  |
Available for Sale, Fair Value, Due in one year or less | 0 |
Available for Sale, Fair Value, Due after one year to five years | 25,143 |
Available for Sale, Fair Value, Due after five to ten years | 99,926 |
Available for Sale, Fair Value, Due after ten years | 249,920 |
Available for sale Securities, Fair Value, Total | 374,989 |
Held to Maturity, Amortized Cost |  |
Held to Maturity, Amortized Cost, Due in one year or less | 32 |
Held to Maturity, Amortized Cost, Due after one year to five years | 16,186 |
Held to Maturity, Amortized Cost, Due after five to ten years | 26,469 |
Held to Maturity, Amortized Cost, Due after ten years | 395,969 |
Held to maturity Securities, Amortized Cost | 438,656 |
Held to Maturity, Fair Value |  |
Held to Maturity, Fair Value, Due in one year or less | 32 |
Held to Maturity, Fair Value, Due after one year to five years | 16,973 |
Held to Maturity, Fair Value, Due after five to ten years | 27,595 |
Held to Maturity, Fair Value, Due after ten years | 407,320 |
Held to Maturity, Fair Value, Total | 451,920 |
Equity securities |  |
Available for Sale, Amortized Cost |  |
Available for Sale, Amortized Cost, Marketable equity securities | 14,367 |
Available for Sale, Fair Value |  |
Available for Sale, Fair Value, Marketable equity securities | 14,835 |
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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