Investments (Net Unrealized Investment Gains and Losses on Fixed Maturity Securities on which an OTTI loss) (Details) $ in Thousands	9 Months Ended
	Sep. 30, 2016 USD ($)
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance, Beginning of Period	$ 64,805
Balance, End of Period	249,787
Securities Related to Other Than Temporary Impairments | Net Unrealized Gains (Losses) on Investments
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance, Beginning of Period	5,196
Net investment gains (losses) on investments arising during the period	1,004
Reclassification adjustment for (gains) losses included in net income	(1,219)
Reclassification adjustment for OTTI losses excluded from net income	(512)
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 and policyholders’ account balances	0
Balance, End of Period	4,469
Securities Related to Other Than Temporary Impairments | Deferred Policy Acquisition Costs and Other Costs
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance, Beginning of Period	(1,350)
Net investment gains (losses) on investments arising during the period	0
Reclassification adjustment for (gains) losses included in net income	0
Reclassification adjustment for OTTI losses excluded from net income	0
Impact of net unrealized investment (gains) losses on deferred policy acquisition costs and other costs	(78)
Impact of net unrealized investment (gains) losses on future policy benefits and policyholders’ account balances	0
Balance, End of Period	(1,428)
Securities Related to Other Than Temporary Impairments | Future Policy Benefits and Policyholders’ Account Balances
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance, Beginning of Period	1,114
Net investment gains (losses) on investments arising during the period	0
Reclassification adjustment for (gains) losses included in net income	0
Reclassification adjustment for OTTI 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 and policyholders’ account balances	38
Balance, End of Period	1,152
Securities Related to Other Than Temporary Impairments | Deferred Income Tax (Liability) Benefit
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance, Beginning of Period	(1,767)
Net investment gains (losses) on investments arising during the period	(351)
Reclassification adjustment for (gains) losses included in net income	427
Reclassification adjustment for OTTI losses excluded from net income	179
Impact of net unrealized investment (gains) losses on deferred policy acquisition costs and other costs	27
Impact of net unrealized investment (gains) losses on future policy benefits and policyholders’ account balances	(13)
Balance, End of Period	(1,498)
Securities Related to Other Than Temporary Impairments | Accumulated Other Comprehensive Income (Loss) Related To Net Unrealized Investment Gains (Losses)
Accumulated Other Comprehensive Income (Loss), Net of Tax [Roll Forward]
Balance, Beginning of Period	3,193
Net investment gains (losses) on investments arising during the period	653
Reclassification adjustment for (gains) losses included in net income	(792)
Reclassification adjustment for OTTI losses excluded from net income	(333)
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 and policyholders’ account balances	25
Balance, End of Period	$ 2,695