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Securities (Unrealized Loss NOT deemed to be OTTI) (Details) $ in Thousands | Jun. 30, 2017 USD ($) holding | Dec. 31, 2016 USD ($) holding
--- | --- | ---
Summary of gross unrealized losses and fair value of investments |  |
No of holdings | holding | 89 | 121
Fair value, less than 12 months | $ 349,408 | $ 444,471
Unrealized loss position for available for sale and held to maturity securities in a continuous loss position for less than 12 months | (3,276) | (5,510)
Fair value, 12 months or longer | 51,886 | 56,356
Unrealized loss position for available for sale and held to maturity securities in a continuous loss position for more than 12 months | (2,679) | (3,084)
Fair value, Total | 401,294 | 500,827
Available for Sale and Held to Maturity Securities Continuous Unrealized Loss Position Aggregate Loss | $ (5,955) | $ (8,594)
Agency mortgage-backed securities |  |
Summary of gross unrealized losses and fair value of investments |  |
No of holdings | holding | 36 | 57
Fair value, less than 12 months | $ 111,741 | $ 137,949
Unrealized loss position for available for sale and held to maturity securities in a continuous loss position for less than 12 months | (589) | (1,594)
Fair value, 12 months or longer | 325 | 0
Unrealized loss position for available for sale and held to maturity securities in a continuous loss position for more than 12 months | (2) | 0
Fair value, Total | 112,066 | 137,949
Available for Sale and Held to Maturity Securities Continuous Unrealized Loss Position Aggregate Loss | $ (591) | $ (1,594)
Agency Collateralized Mortgage Obligations [Member] |  |
Summary of gross unrealized losses and fair value of investments |  |
No of holdings | holding | 25 | 32
Fair value, less than 12 months | $ 163,824 | $ 243,051
Unrealized loss position for available for sale and held to maturity securities in a continuous loss position for less than 12 months | (2,228) | (3,140)
Fair value, 12 months or longer | 44,015 | 47,403
Unrealized loss position for available for sale and held to maturity securities in a continuous loss position for more than 12 months | (1,681) | (1,989)
Fair value, Total | 207,839 | 290,454
Available for Sale and Held to Maturity Securities Continuous Unrealized Loss Position Aggregate Loss | $ (3,909) | $ (5,129)
Single issuer trust preferred securities issued by banks and insurers |  |
Summary of gross unrealized losses and fair value of investments |  |
No of holdings | holding |  | 1
Fair value, less than 12 months |  | $ 0
Unrealized loss position for available for sale and held to maturity securities in a continuous loss position for less than 12 months |  | 0
Fair value, 12 months or longer |  | 1,036
Unrealized loss position for available for sale and held to maturity securities in a continuous loss position for more than 12 months |  | (3)
Fair value, Total |  | 1,036
Available for Sale and Held to Maturity Securities Continuous Unrealized Loss Position Aggregate Loss |  | $ (3)
Pooled trust preferred securities issued by banks and insurers |  |
Summary of gross unrealized losses and fair value of investments |  |
No of holdings | holding | 1 | 1
Fair value, less than 12 months | $ 0 | $ 0
Unrealized loss position for available for sale and held to maturity securities in a continuous loss position for less than 12 months | 0 | 0
Fair value, 12 months or longer | 1,593 | 1,583
Unrealized loss position for available for sale and held to maturity securities in a continuous loss position for more than 12 months | (609) | (616)
Fair value, Total | 1,593 | 1,583
Available for Sale and Held to Maturity Securities Continuous Unrealized Loss Position Aggregate Loss | $ (609) | $ (616)
Equity securities |  |
Summary of gross unrealized losses and fair value of investments |  |
No of holdings | holding | 21 | 25
Fair value, less than 12 months | $ 1,703 | $ 3,625
Unrealized loss position for available for sale and held to maturity securities in a continuous loss position for less than 12 months | (37) | (77)
Fair value, 12 months or longer | 5,953 | 6,334
Unrealized loss position for available for sale and held to maturity securities in a continuous loss position for more than 12 months | (387) | (476)
Fair value, Total | 7,656 | 9,959
Available for Sale and Held to Maturity Securities Continuous Unrealized Loss Position Aggregate Loss | $ (424) | $ (553)
Small Business Administration Pooled Securities [Member] |  |
Summary of gross unrealized losses and fair value of investments |  |
No of holdings | holding | 6 | 5
Fair value, less than 12 months | $ 72,140 | $ 59,846
Unrealized loss position for available for sale and held to maturity securities in a continuous loss position for less than 12 months | (422) | (699)
Fair value, 12 months or longer | 0 | 0
Unrealized loss position for available for sale and held to maturity securities in a continuous loss position for more than 12 months | 0 | 0
Fair value, Total | 72,140 | 59,846
Available for Sale and Held to Maturity Securities Continuous Unrealized Loss Position Aggregate Loss | $ (422) | $ (699)

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