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Derivative Instruments (Details) - USD ($) $ in Thousands | Mar. 31, 2016 | Dec. 31, 2015
--- | --- | ---
Assets |  |
Derivative instruments, included in Short-term and Other Investments | $ 3,140 | $ 2,501
Liabilities |  |
Fixed indexed annuities - embedded derivatives, included in Other Policyholder Funds | 42,085 | 39,021
Indexed universal life - embedded derivatives, included in Investment Contract and Life Policy Reserves | $ 23 | $ 14

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