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Investment Securities (Details 2) - USD ($) $ in Thousands | Mar. 31, 2016 | Dec. 31, 2015
--- | --- | ---
Fair Value |  |
Less than 12 Months | $ 78,585 | $ 257,218
12 months or Longer | 23,802 | 67,762
Total fair value | 102,387 | 324,980
Unrealized Losses |  |
Less than 12 Months | (524) | (2,060)
12 months or Longer | (405) | (1,400)
Total unrealized losses | (929) | (3,460)
Investment securities pledged as collateral | 284,110 | 233,140
U.S. Treasury and Federal agencies securities |  |
Fair Value |  |
Less than 12 Months | 36,933 | 151,581
12 months or Longer | 0 | 43,372
Total fair value | 36,933 | 194,953
Unrealized Losses |  |
Less than 12 Months | (42) | (928)
12 months or Longer | 0 | (578)
Total unrealized losses | (42) | (1,506)
U.S. States and political subdivisions securities |  |
Fair Value |  |
Less than 12 Months | 12,169 | 17,040
12 months or Longer | 4,332 | 3,795
Total fair value | 16,501 | 20,835
Unrealized Losses |  |
Less than 12 Months | (73) | (79)
12 months or Longer | (50) | (64)
Total unrealized losses | (123) | (143)
Mortgage-backed securities - Federal agencies |  |
Fair Value |  |
Less than 12 Months | 27,283 | 78,731
12 months or Longer | 19,467 | 20,592
Total fair value | 46,750 | 99,323
Unrealized Losses |  |
Less than 12 Months | (111) | (777)
12 months or Longer | (353) | (756)
Total unrealized losses | (464) | (1,533)
Corporate debt securities |  |
Fair Value |  |
Less than 12 Months | 1,753 | 9,340
12 months or Longer | 0 | 0
Total fair value | 1,753 | 9,340
Unrealized Losses |  |
Less than 12 Months | (1) | (57)
12 months or Longer | 0 | 0
Total unrealized losses | (1) | (57)
Foreign government and other securities |  |
Fair Value |  |
Less than 12 Months | 100 | 99
12 months or Longer | 0 | 0
Total fair value | 100 | 99
Unrealized Losses |  |
Less than 12 Months | 0 | (1)
12 months or Longer | 0 | 0
Total unrealized losses | 0 | (1)
Total debt securities |  |
Fair Value |  |
Less than 12 Months | 78,238 | 256,791
12 months or Longer | 23,799 | 67,759
Total fair value | 102,037 | 324,550
Unrealized Losses |  |
Less than 12 Months | (227) | (1,842)
12 months or Longer | (403) | (1,398)
Total unrealized losses | (630) | (3,240)
Marketable equity securities |  |
Fair Value |  |
Less than 12 Months | 347 | 427
12 months or Longer | 3 | 3
Total fair value | 350 | 430
Unrealized Losses |  |
Less than 12 Months | (297) | (218)
12 months or Longer | (2) | (2)
Total unrealized losses | $ (299) | $ (220)

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