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Securities - Unrealized Loss Positions (Details) $ in Thousands | Mar. 31, 2017 USD ($) security | Dec. 31, 2016 USD ($) security
--- | --- | ---
Securities Available-for-Sale, Number of Securities |  |
Less than 12 months in an unrealized loss position | security | 51 | 44
Greater than 12 months in an unrealized loss position | security | 30 | 34
Total | security | 81 | 78
Securities Available-for-Sale, Unrealized Losses |  |
Less than 12 months in an unrealized loss position | $ 3,768 | $ 5,143
Greater than 12 months in an unrealized loss position | 6,869 | 9,463
Total | 10,637 | 14,606
Securities Available-for-Sale, Fair Value |  |
Less than 12 months in an unrealized loss position | 207,533 | 216,050
Greater than 12 months in an unrealized loss position | 200,094 | 213,060
Total | $ 407,627 | $ 429,110
U.S. government agencies |  |
Securities Available-for-Sale, Number of Securities |  |
Less than 12 months in an unrealized loss position | security |  | 11
Greater than 12 months in an unrealized loss position | security |  | 1
Total | security |  | 12
Securities Available-for-Sale, Unrealized Losses |  |
Less than 12 months in an unrealized loss position |  | $ 957
Greater than 12 months in an unrealized loss position |  | 20
Total |  | 977
Securities Available-for-Sale, Fair Value |  |
Less than 12 months in an unrealized loss position |  | 40,636
Greater than 12 months in an unrealized loss position |  | 898
Total |  | $ 41,534
U.S. government agency mortgage-backed |  |
Securities Available-for-Sale, Number of Securities |  |
Less than 12 months in an unrealized loss position | security | 10 |
Greater than 12 months in an unrealized loss position | security | 1 |
Total | security | 11 |
Securities Available-for-Sale, Unrealized Losses |  |
Less than 12 months in an unrealized loss position | $ 369 |
Greater than 12 months in an unrealized loss position | 23 |
Total | 392 |
Securities Available-for-Sale, Fair Value |  |
Less than 12 months in an unrealized loss position | 23,831 |
Greater than 12 months in an unrealized loss position | 890 |
Total | $ 24,721 |
States and political subdivisions |  |
Securities Available-for-Sale, Number of Securities |  |
Less than 12 months in an unrealized loss position | security | 24 | 12
Total | security | 24 | 12
Securities Available-for-Sale, Unrealized Losses |  |
Less than 12 months in an unrealized loss position | $ 572 | $ 273
Total | 572 | 273
Securities Available-for-Sale, Fair Value |  |
Less than 12 months in an unrealized loss position | 76,287 | 35,241
Total | $ 76,287 | $ 35,241
Corporate bonds |  |
Securities Available-for-Sale, Number of Securities |  |
Less than 12 months in an unrealized loss position | security | 1 | 1
Greater than 12 months in an unrealized loss position | security | 2 | 2
Total | security | 3 | 3
Securities Available-for-Sale, Unrealized Losses |  |
Less than 12 months in an unrealized loss position | $ 169 | $ 183
Greater than 12 months in an unrealized loss position | 145 | 153
Total | 314 | 336
Securities Available-for-Sale, Fair Value |  |
Less than 12 months in an unrealized loss position | 4,831 | 4,817
Greater than 12 months in an unrealized loss position | 5,203 | 5,328
Total | $ 10,034 | $ 10,145
Collateralized mortgage obligations |  |
Securities Available-for-Sale, Number of Securities |  |
Less than 12 months in an unrealized loss position | security | 13 | 16
Greater than 12 months in an unrealized loss position | security | 4 | 7
Total | security | 17 | 23
Securities Available-for-Sale, Unrealized Losses |  |
Less than 12 months in an unrealized loss position | $ 2,388 | $ 3,402
Greater than 12 months in an unrealized loss position | 212 | 397
Total | 2,600 | 3,799
Securities Available-for-Sale, Fair Value |  |
Less than 12 months in an unrealized loss position | 88,320 | 117,752
Greater than 12 months in an unrealized loss position | 11,660 | 18,109
Total | $ 99,980 | $ 135,861
Asset-backed securities |  |
Securities Available-for-Sale, Number of Securities |  |
Less than 12 months in an unrealized loss position | security | 1 | 4
Greater than 12 months in an unrealized loss position | security | 15 | 12
Total | security | 16 | 16
Securities Available-for-Sale, Unrealized Losses |  |
Less than 12 months in an unrealized loss position | $ 266 | $ 328
Greater than 12 months in an unrealized loss position | 6,147 | 7,997
Total | 6,413 | 8,325
Securities Available-for-Sale, Fair Value |  |
Less than 12 months in an unrealized loss position | 4,287 | 17,604
Greater than 12 months in an unrealized loss position | 125,035 | 107,112
Total | $ 129,322 | $ 124,716
Collateralized loan obligations |  |
Securities Available-for-Sale, Number of Securities |  |
Less than 12 months in an unrealized loss position | security | 2 |
Greater than 12 months in an unrealized loss position | security | 8 | 12
Total | security | 10 | 12
Securities Available-for-Sale, Unrealized Losses |  |
Less than 12 months in an unrealized loss position | $ 4 |
Greater than 12 months in an unrealized loss position | 342 | $ 896
Total | 346 | 896
Securities Available-for-Sale, Fair Value |  |
Less than 12 months in an unrealized loss position | 9,977 |
Greater than 12 months in an unrealized loss position | 57,306 | 81,613
Total | $ 67,283 | $ 81,613

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