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Fair Value (Details 1) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | ---
Jun. 30, 2016 | Jun. 30, 2016 | Dec. 31, 2015
Fair value measurement using significant unobservable input |  |  |
Securities available-for-sale | $ 876,538 | $ 876,538 | $ 891,082
Reconciliation and income statement classification of gains and losses for all assets measured at fair value on a recurring basis using significant unobservable inputs |  |  |
Beginning balance | 17,362 | 19,600 | 21,203
Total realized/unrealized gains or losses - Included in earnings | 0 | 0 | 0
Total realized/unrealized gains or losses - Included in other comprehensive income | (1,586) | (3,208) | (268)
Transfers | 0 | 0 |
Purchases |  |  | 0
Settlements | (130) | (746) | (1,335)
Ending balance | 15,646 | 15,646 | 19,600
US Government Agencies Debt Securities [Member] |  |  |
Fair value measurement using significant unobservable input |  |  |
Securities available-for-sale | 10,407 | 10,407 | 10,693
State and Municipal Obligations |  |  |
Fair value measurement using significant unobservable input |  |  |
Securities available-for-sale | 221,093 | 221,093 | 214,707
Reconciliation and income statement classification of gains and losses for all assets measured at fair value on a recurring basis using significant unobservable inputs |  |  |
Beginning balance | 4,210 | 4,725 | 5,900
Total realized/unrealized gains or losses - Included in earnings | 0 | 0 | 0
Total realized/unrealized gains or losses - Included in other comprehensive income | 0 | 0 | 0
Transfers | 0 | 0 |
Purchases |  |  | 0
Settlements | 0 | (515) | (1,175)
Ending balance | 4,210 | 4,210 | 4,725
Collateralized Debt Obligations |  |  |
Fair value measurement using significant unobservable input |  |  |
Securities available-for-sale | 11,436 | 11,436 | 14,875
Reconciliation and income statement classification of gains and losses for all assets measured at fair value on a recurring basis using significant unobservable inputs |  |  |
Beginning balance | 13,152 | 14,875 | 15,303
Total realized/unrealized gains or losses - Included in earnings | 0 | 0 | 0
Total realized/unrealized gains or losses - Included in other comprehensive income | (1,586) | (3,208) | (268)
Transfers | 0 | 0 |
Purchases |  |  | 0
Settlements | (130) | (231) | (160)
Ending balance | 11,436 | 11,436 | 14,875
Mortgage Backed Securities - Residential |  |  |
Fair value measurement using significant unobservable input |  |  |
Securities available-for-sale | 225,381 | 225,381 | 213,164
Mortgage Backed Securities - Commercial |  |  |
Fair value measurement using significant unobservable input |  |  |
Securities available-for-sale | 6 | 6 | 9
Collateralized Mortgage Obligations |  |  |
Fair value measurement using significant unobservable input |  |  |
Securities available-for-sale | 408,215 | 408,215 | 437,634
Fair Value, Inputs, Level 3 [Member] |  |  |
Fair value measurement using significant unobservable input |  |  |
Securities available-for-sale | 15,646 | 15,646 | 19,600
Fair Value, Inputs, Level 3 [Member] | US Government Agencies Debt Securities [Member] |  |  |
Fair value measurement using significant unobservable input |  |  |
Securities available-for-sale | 0 | 0 | 0
Fair Value, Inputs, Level 3 [Member] | State and Municipal Obligations |  |  |
Fair value measurement using significant unobservable input |  |  |
Securities available-for-sale | 4,210 | 4,210 | 4,725
Fair Value, Inputs, Level 3 [Member] | Collateralized Debt Obligations |  |  |
Fair value measurement using significant unobservable input |  |  |
Securities available-for-sale | 11,436 | 11,436 | 14,875
Fair Value, Inputs, Level 3 [Member] | Mortgage Backed Securities - Residential |  |  |
Fair value measurement using significant unobservable input |  |  |
Securities available-for-sale | 0 | 0 | 0
Fair Value, Inputs, Level 3 [Member] | Mortgage Backed Securities - Commercial |  |  |
Fair value measurement using significant unobservable input |  |  |
Securities available-for-sale | 0 | 0 | 0
Fair Value, Inputs, Level 3 [Member] | Collateralized Mortgage Obligations |  |  |
Fair value measurement using significant unobservable input |  |  |
Securities available-for-sale | 0 | 0 | 0
Fair Value, Inputs, Level 1 [Member] |  |  |
Fair value measurement using significant unobservable input |  |  |
Securities available-for-sale | 0 | 0 | 0
Fair Value, Inputs, Level 1 [Member] | US Government Agencies Debt Securities [Member] |  |  |
Fair value measurement using significant unobservable input |  |  |
Securities available-for-sale | 0 | 0 | 0
Fair Value, Inputs, Level 1 [Member] | State and Municipal Obligations |  |  |
Fair value measurement using significant unobservable input |  |  |
Securities available-for-sale | 0 | 0 | 0
Fair Value, Inputs, Level 1 [Member] | Collateralized Debt Obligations |  |  |
Fair value measurement using significant unobservable input |  |  |
Securities available-for-sale | 0 | 0 | 0
Fair Value, Inputs, Level 1 [Member] | Mortgage Backed Securities - Residential |  |  |
Fair value measurement using significant unobservable input |  |  |
Securities available-for-sale | 0 | 0 | 0
Fair Value, Inputs, Level 1 [Member] | Mortgage Backed Securities - Commercial |  |  |
Fair value measurement using significant unobservable input |  |  |
Securities available-for-sale | 0 | 0 | 0
Fair Value, Inputs, Level 1 [Member] | Collateralized Mortgage Obligations |  |  |
Fair value measurement using significant unobservable input |  |  |
Securities available-for-sale | 0 | 0 | 0
Fair Value, Inputs, Level 2 [Member] |  |  |
Fair value measurement using significant unobservable input |  |  |
Securities available-for-sale | 860,892 | 860,892 | 871,482
Reconciliation and income statement classification of gains and losses for all assets measured at fair value on a recurring basis using significant unobservable inputs |  |  |
Derivative Assets | 1,979 | 1,979 | 1,176
Derivative Liability | 1,979 | 1,979 | 1,176
Fair Value, Inputs, Level 2 [Member] | US Government Agencies Debt Securities [Member] |  |  |
Fair value measurement using significant unobservable input |  |  |
Securities available-for-sale | 10,407 | 10,407 | 10,693
Fair Value, Inputs, Level 2 [Member] | State and Municipal Obligations |  |  |
Fair value measurement using significant unobservable input |  |  |
Securities available-for-sale | 216,883 | 216,883 | 209,982
Fair Value, Inputs, Level 2 [Member] | Collateralized Debt Obligations |  |  |
Fair value measurement using significant unobservable input |  |  |
Securities available-for-sale | 0 | 0 | 0
Fair Value, Inputs, Level 2 [Member] | Mortgage Backed Securities - Residential |  |  |
Fair value measurement using significant unobservable input |  |  |
Securities available-for-sale | 225,381 | 225,381 | 213,164
Fair Value, Inputs, Level 2 [Member] | Mortgage Backed Securities - Commercial |  |  |
Fair value measurement using significant unobservable input |  |  |
Securities available-for-sale | 6 | 6 | 9
Fair Value, Inputs, Level 2 [Member] | Collateralized Mortgage Obligations |  |  |
Fair value measurement using significant unobservable input |  |  |
Securities available-for-sale | $ 408,215 | $ 408,215 | $ 437,634

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