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Investments (Net Unrealized Investment Gains and Losses on Fixed Maturity Securities on which an OTTI loss) (Details)
$ in Thousands
6 Months Ended
Jun. 30, 2016
USD ($)
AOCI Attributable to Parent, Net of Tax [Roll Forward]  
Balance, beginning $ 46,166
Balance, ending 239,911
Securities Related to Other Than Temporary Impairments | Net Unrealized Gains (Losses) on Investments  
AOCI Attributable to Parent, Net of Tax [Roll Forward]  
Balance, beginning 9
Net investment gains (losses) on investments arising during the period (8)
Reclassification adjustment for (gains) losses included in net income 708
Reclassification adjustment for (gains) losses excluded from net income (1,497)
Impact of net unrealized investment (gains) losses on deferred policy acquisition costs and other costs 0
Impact of net unrealized investment (gains) losses on future policy benefits 0
Balance, ending (788)
Securities Related to Other Than Temporary Impairments | Deferred Policy Acquisition Costs and Other Costs  
AOCI Attributable to Parent, Net of Tax [Roll Forward]  
Balance, beginning (3)
Net investment gains (losses) on investments arising during the period 0
Reclassification adjustment for (gains) losses included in net income 0
Reclassification adjustment for (gains) losses excluded from net income 0
Impact of net unrealized investment (gains) losses on deferred policy acquisition costs and other costs 51
Impact of net unrealized investment (gains) losses on future policy benefits 0
Balance, ending 48
Securities Related to Other Than Temporary Impairments | Future Policy Benefits  
AOCI Attributable to Parent, Net of Tax [Roll Forward]  
Balance, beginning 0
Net investment gains (losses) on investments arising during the period 0
Reclassification adjustment for (gains) losses included in net income 0
Reclassification adjustment for (gains) losses excluded from net income 0
Impact of net unrealized investment (gains) losses on deferred policy acquisition costs and other costs 0
Impact of net unrealized investment (gains) losses on future policy benefits 10
Balance, ending 10
Securities Related to Other Than Temporary Impairments | Deferred Income Tax (Liability) Benefit  
AOCI Attributable to Parent, Net of Tax [Roll Forward]  
Balance, beginning 14
Net investment gains (losses) on investments arising during the period 3
Reclassification adjustment for (gains) losses included in net income (248)
Reclassification adjustment for (gains) losses excluded from net income 524
Impact of net unrealized investment (gains) losses on deferred policy acquisition costs and other costs (18)
Impact of net unrealized investment (gains) losses on future policy benefits (4)
Balance, ending 271
Securities Related to Other Than Temporary Impairments | Accumulated Other Comprehensive Income (Loss) Related to Net Unrealized Investment Gains (Losses)  
AOCI Attributable to Parent, Net of Tax [Roll Forward]  
Balance, beginning 20
Net investment gains (losses) on investments arising during the period (5)
Reclassification adjustment for (gains) losses included in net income 460
Reclassification adjustment for (gains) losses excluded from net income (973)
Impact of net unrealized investment (gains) losses on deferred policy acquisition costs and other costs 33
Impact of net unrealized investment (gains) losses on future policy benefits 6
Balance, ending $ (459)