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Securities - Unrealized Loss Positions (Details) (USD $) In Thousands, unless otherwise specified | 6 Months Ended | 12 Months Ended
--- | --- | ---
Jun. 30, 2014 security | Dec. 31, 2013 security
Number of Securities |  |
Less than 12 months in an unrealized loss position | 20 | 27
Greater than 12 months in an unrealized loss position | 9 | 5
Total | 29 | 32
Unrealized Losses |  |
Less than 12 months in an unrealized loss position | $ 2,050 | $ 6,633
Greater than 12 months in an unrealized loss position | 2,761 | 532
Total | 4,811 | 7,165
Fair Value |  |
Less than 12 months in an unrealized loss position | 126,956 | 170,149
Greater than 12 months in an unrealized loss position | 59,005 | 10,836
Total | 185,961 | 180,985
Number of Securities |  |
Less than 12 months in an unrealized loss position | 13 | 25
Total | 13 | 25
Unrealized Losses |  |
Less than 12 months in an unrealized loss position | 952 | 2,931
Total | 952 | 2,931
Fair Value |  |
Less than 12 months in an unrealized loss position | 107,145 | 175,766
Total | 107,145 | 175,766
U.S. Treasury |  |
Number of Securities |  |
Less than 12 months in an unrealized loss position | 1 | 1
Total | 1 | 1
Unrealized Losses |  |
Less than 12 months in an unrealized loss position | 1 | 5
Total | 1 | 5
Fair Value |  |
Less than 12 months in an unrealized loss position | 1,538 | 1,544
Total | 1,538 | 1,544
U.S. government agencies |  |
Number of Securities |  |
Greater than 12 months in an unrealized loss position | 1 | 1
Total | 1 | 1
Unrealized Losses |  |
Greater than 12 months in an unrealized loss position | 71 | 66
Total | 71 | 66
Fair Value |  |
Greater than 12 months in an unrealized loss position | 1,653 | 1,672
Total | 1,653 | 1,672
U.S. government agency mortgage-backed |  |
Number of Securities |  |
Less than 12 months in an unrealized loss position |  | 6
Total |  | 6
Unrealized Losses |  |
Less than 12 months in an unrealized loss position |  | 73
Total |  | 73
Fair Value |  |
Less than 12 months in an unrealized loss position |  | 19,134
Total |  | 19,134
States and political subdivisions |  |
Number of Securities |  |
Less than 12 months in an unrealized loss position | 2 | 6
Greater than 12 months in an unrealized loss position | 3 |
Total | 5 | 6
Unrealized Losses |  |
Less than 12 months in an unrealized loss position | 281 | 217
Greater than 12 months in an unrealized loss position | 20 |
Total | 301 | 217
Fair Value |  |
Less than 12 months in an unrealized loss position | 3,214 | 4,625
Greater than 12 months in an unrealized loss position | 3,055 |
Total | 6,269 | 4,625
Corporate bonds |  |
Number of Securities |  |
Less than 12 months in an unrealized loss position | 5 | 4
Greater than 12 months in an unrealized loss position | 1 | 2
Total | 6 | 6
Unrealized Losses |  |
Less than 12 months in an unrealized loss position | 256 | 429
Greater than 12 months in an unrealized loss position | 74 | 219
Total | 330 | 648
Fair Value |  |
Less than 12 months in an unrealized loss position | 15,982 | 10,493
Greater than 12 months in an unrealized loss position | 1,928 | 2,796
Total | 17,910 | 13,289
Collateralized mortgage obligations |  |
Number of Securities |  |
Less than 12 months in an unrealized loss position |  | 5
Greater than 12 months in an unrealized loss position | 3 |
Total | 3 | 5
Unrealized Losses |  |
Less than 12 months in an unrealized loss position |  | 3,146
Greater than 12 months in an unrealized loss position | 1,970 |
Total | 1,970 | 3,146
Fair Value |  |
Less than 12 months in an unrealized loss position |  | 54,021
Greater than 12 months in an unrealized loss position | 26,288 |
Total | 26,288 | 54,021
Number of Securities |  |
Less than 12 months in an unrealized loss position | 13 | 19
Total | 13 | 19
Unrealized Losses |  |
Less than 12 months in an unrealized loss position | 952 | 2,858
Total | 952 | 2,858
Fair Value |  |
Less than 12 months in an unrealized loss position | 107,145 | 156,632
Total | 107,145 | 156,632
Asset-backed securities |  |
Number of Securities |  |
Less than 12 months in an unrealized loss position | 12 | 11
Greater than 12 months in an unrealized loss position | 1 | 2
Total | 13 | 13
Unrealized Losses |  |
Less than 12 months in an unrealized loss position | 1,512 | 2,836
Greater than 12 months in an unrealized loss position | 626 | 247
Total | 2,138 | 3,083
Fair Value |  |
Less than 12 months in an unrealized loss position | 106,222 | 99,466
Greater than 12 months in an unrealized loss position | 26,081 | 6,368
Total | $ 132,303 | $ 105,834

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