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Investments (Details 4) - USD ($) $ in Thousands | 3 Months Ended
--- | ---
Mar. 31, 2017 | Mar. 31, 2016
Proceeds received from sales of fixed maturities and equity securities |  |
Proceeds received, Fixed maturity securities | $ 110,872 | $ 82,090
Proceeds received, Equity securities | 5,489 | 6,147
Fixed maturity securities [Member] |  |
Proceeds received from sales of fixed maturities and equity securities |  |
Gross gains realized | 2,489 | 2,476
Gross losses realized | (881) | (492)
Equity securities [Member] |  |
Proceeds received from sales of fixed maturities and equity securities |  |
Gross gains realized | 1,048 | 520
Gross losses realized | $ (192) | $ (646)

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