Investments - Investment Income (Details) - USD ($) $ in Thousands	3 Months Ended	6 Months Ended
Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2018	Jun. 30, 2017
Net Investment Income
Investment income	$ 7,091	$ 4,637	$ 12,777	$ 7,588
Investment expenses	(246)	(19)	(489)	(269)
Net investment income	6,845	4,618	12,288	7,319
Fixed Maturities
Net Investment Income
Investment income	5,392	4,087	10,204	6,585
Equity Securities
Net Investment Income
Investment income	467	345	930	565
Cash and cash equivalents
Net Investment Income
Investment income	617	90	839	160
Other Investments
Net Investment Income
Investment income	607	109	789	261
Other Assets
Net Investment Income
Investment income	$ 8	$ 6	$ 15	$ 17

Amount of expenses related to the generation of investment income.

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Amount after accretion (amortization) of discount (premium), and investment expense, of interest income and dividend income on nonoperating securities.

+ References

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-Publisher FASB
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Amount, after investment expense, of income earned from investments in securities and real estate. Includes, but is not limited to, real estate investment, policy loans, dividends, and interest. Excludes realized gain (loss) on investments.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 220
-Section S99
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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