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Securities - Unrealized Loss Positions (Details) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2015 USD ($) security | Dec. 31, 2014 USD ($) security
Securities Available-for-Sale, Number of Securities |  |
Less than 12 months in an unrealized loss position | security | 26 | 35
Greater than 12 months in an unrealized loss position | security | 29 | 8
Total | security | 55 | 43
Securities Available-for-Sale, Unrealized Losses |  |
Less than 12 months in an unrealized loss position | $ 3,215 | $ 4,764
Greater than 12 months in an unrealized loss position | 11,821 | 2,591
Total | 15,036 | 7,355
Securities Available-for-Sale, Fair Value |  |
Less than 12 months in an unrealized loss position | 142,402 | 241,626
Greater than 12 months in an unrealized loss position | 245,409 | 68,811
Total | $ 387,811 | $ 310,437
Securities Held-to-Maturity, Number of Securities |  |
Less than 12 months in an unrealized loss position | security | 8 | 7
Greater than 12 months in an unrealized loss position | security | 2 | 4
Total | security | 10 | 11
Securities Held-to-Maturity, Unrealized Losses |  |
Less than 12 months in an unrealized loss position | $ 505 | $ 457
Greater than 12 months in an unrealized loss position | 460 | 982
Total | 965 | 1,439
Securities Held-to-Maturity, Fair Value |  |
Less than 12 months in an unrealized loss position | 40,307 | 49,302
Greater than 12 months in an unrealized loss position | 33,842 | 46,283
Total | $ 74,149 | $ 95,585
U.S. Treasury |  |
Securities Available-for-Sale, Number of Securities |  |
Less than 12 months in an unrealized loss position | security |  | 1
Total | security |  | 1
Securities Available-for-Sale, Unrealized Losses |  |
Less than 12 months in an unrealized loss position |  | $ 2
Total |  | 2
Securities Available-for-Sale, Fair Value |  |
Less than 12 months in an unrealized loss position |  | 1,527
Total |  | $ 1,527
U.S. government agencies |  |
Securities Available-for-Sale, Number of Securities |  |
Greater than 12 months in an unrealized loss position | security | 1 | 1
Total | security | 1 | 1
Securities Available-for-Sale, Unrealized Losses |  |
Greater than 12 months in an unrealized loss position | $ 127 | $ 87
Total | 127 | 87
Securities Available-for-Sale, Fair Value |  |
Greater than 12 months in an unrealized loss position | 1,556 | 1,624
Total | $ 1,556 | $ 1,624
U.S. government agency mortgage-backed |  |
Securities Available-for-Sale, Number of Securities |  |
Less than 12 months in an unrealized loss position | security | 1 |
Total | security | 1 |
Securities Available-for-Sale, Unrealized Losses |  |
Less than 12 months in an unrealized loss position | $ 44 |
Total | 44 |
Securities Available-for-Sale, Fair Value |  |
Less than 12 months in an unrealized loss position | 1,996 |
Total | $ 1,996 |
States and political subdivisions |  |
Securities Available-for-Sale, Number of Securities |  |
Less than 12 months in an unrealized loss position | security | 2 | 4
Greater than 12 months in an unrealized loss position | security | 1 |
Total | security | 3 | 4
Securities Available-for-Sale, Unrealized Losses |  |
Less than 12 months in an unrealized loss position | $ 19 | $ 96
Greater than 12 months in an unrealized loss position | 81 |
Total | 100 | 96
Securities Available-for-Sale, Fair Value |  |
Less than 12 months in an unrealized loss position | 1,541 | 4,896
Greater than 12 months in an unrealized loss position | 1,713 |
Total | $ 3,254 | $ 4,896
Corporate bonds |  |
Securities Available-for-Sale, Number of Securities |  |
Less than 12 months in an unrealized loss position | security | 5 | 4
Greater than 12 months in an unrealized loss position | security | 3 | 1
Total | security | 8 | 5
Securities Available-for-Sale, Unrealized Losses |  |
Less than 12 months in an unrealized loss position | $ 292 | $ 486
Greater than 12 months in an unrealized loss position | 465 | 81
Total | 757 | 567
Securities Available-for-Sale, Fair Value |  |
Less than 12 months in an unrealized loss position | 14,866 | 15,246
Greater than 12 months in an unrealized loss position | 14,534 | 1,921
Total | $ 29,400 | $ 17,167
Collateralized mortgage obligations |  |
Securities Available-for-Sale, Number of Securities |  |
Less than 12 months in an unrealized loss position | security | 4 | 5
Greater than 12 months in an unrealized loss position | security | 7 | 3
Total | security | 11 | 8
Securities Available-for-Sale, Unrealized Losses |  |
Less than 12 months in an unrealized loss position | $ 334 | $ 900
Greater than 12 months in an unrealized loss position | 1,513 | 1,232
Total | 1,847 | 2,132
Securities Available-for-Sale, Fair Value |  |
Less than 12 months in an unrealized loss position | 16,218 | 38,284
Greater than 12 months in an unrealized loss position | 43,618 | 21,604
Total | $ 59,836 | $ 59,888
Securities Held-to-Maturity, Number of Securities |  |
Less than 12 months in an unrealized loss position | security | 8 | 7
Greater than 12 months in an unrealized loss position | security | 2 | 4
Total | security | 10 | 11
Securities Held-to-Maturity, Unrealized Losses |  |
Less than 12 months in an unrealized loss position | $ 505 | $ 457
Greater than 12 months in an unrealized loss position | 460 | 982
Total | 965 | 1,439
Securities Held-to-Maturity, Fair Value |  |
Less than 12 months in an unrealized loss position | 40,307 | 49,302
Greater than 12 months in an unrealized loss position | 33,842 | 46,283
Total | $ 74,149 | $ 95,585
Asset-backed securities |  |
Securities Available-for-Sale, Number of Securities |  |
Less than 12 months in an unrealized loss position | security | 9 | 9
Greater than 12 months in an unrealized loss position | security | 8 | 3
Total | security | 17 | 12
Securities Available-for-Sale, Unrealized Losses |  |
Less than 12 months in an unrealized loss position | $ 2,080 | $ 1,077
Greater than 12 months in an unrealized loss position | 7,958 | 1,191
Total | 10,038 | 2,268
Securities Available-for-Sale, Fair Value |  |
Less than 12 months in an unrealized loss position | 78,301 | 99,286
Greater than 12 months in an unrealized loss position | 121,217 | 43,662
Total | $ 199,518 | $ 142,948
Collateralized loan obligations |  |
Securities Available-for-Sale, Number of Securities |  |
Less than 12 months in an unrealized loss position | security | 5 | 12
Greater than 12 months in an unrealized loss position | security | 9 |
Total | security | 14 | 12
Securities Available-for-Sale, Unrealized Losses |  |
Less than 12 months in an unrealized loss position | $ 446 | $ 2,203
Greater than 12 months in an unrealized loss position | 1,677 |
Total | 2,123 | 2,203
Securities Available-for-Sale, Fair Value |  |
Less than 12 months in an unrealized loss position | 29,480 | 82,387
Greater than 12 months in an unrealized loss position | 62,771 |
Total | $ 92,251 | $ 82,387

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