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v3.3.1.900

FAIR VALUES OF FINANCIAL INSTRUMENTS: (Details) - USD ($) $ in Thousands | Dec. 31, 2015 | Dec. 31, 2014
--- | --- | ---
Fair value measurement |  |
Securities available-for-sale | $ 891,082 | $ 897,053
U.S. Government entity mortgage-backed securities |  |
Fair value measurement |  |
Securities available-for-sale | 10,693 | 1,467
Mortgage-backed securities, residential |  |
Fair value measurement |  |
Securities available-for-sale | 213,164 | 187,936
Mortgage-backed securities, commercial |  |
Fair value measurement |  |
Securities available-for-sale | 9 | 17
Collateralized mortgage obligations |  |
Fair value measurement |  |
Securities available-for-sale | 437,634 | 484,655
State and municipal obligations |  |
Fair value measurement |  |
Securities available-for-sale | 214,707 | 207,675
Collateralized debt obligations |  |
Fair value measurement |  |
Securities available-for-sale | 14,875 | 15,303
Level 1 |  |
Fair value measurement |  |
Securities available-for-sale | 0 | 0
Level 2 |  |
Fair value measurement |  |
Securities available-for-sale | 871,482 | 875,850
Derivative Assets | 1,176 | 1,062
Derivative Liabilities | (1,176) | (1,062)
Level 2 | U.S. Government entity mortgage-backed securities |  |
Fair value measurement |  |
Securities available-for-sale | 10,693 | 1,467
Level 2 | Mortgage-backed securities, residential |  |
Fair value measurement |  |
Securities available-for-sale | 213,164 | 187,936
Level 2 | Mortgage-backed securities, commercial |  |
Fair value measurement |  |
Securities available-for-sale | 9 | 17
Level 2 | Collateralized mortgage obligations |  |
Fair value measurement |  |
Securities available-for-sale | 437,634 | 484,655
Level 2 | State and municipal obligations |  |
Fair value measurement |  |
Securities available-for-sale | 209,982 | 201,775
Level 3 |  |
Fair value measurement |  |
Securities available-for-sale | 19,600 | 21,203
Level 3 | State and municipal obligations |  |
Fair value measurement |  |
Securities available-for-sale | 4,725 | 5,900
Level 3 | Collateralized debt obligations |  |
Fair value measurement |  |
Securities available-for-sale | $ 14,875 | $ 15,303

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