Discontinued Operations Statements of Income (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended
	Mar. 31, 2018	Mar. 31, 2017
Benefits, Losses and Expenses
Income from discontinued operations, net of taxes	$ (1,912)	$ 1,352
Earnings per common share from discontinued operations:
Basic (in dollars per share)	$ (0.08)	$ 0.05
Diluted (in dollars per share)	$ (0.07)	$ 0.05
United Life | Discontinued Operations, Disposed of by Sale
Revenues
Net premiums earned	$ 13,003	$ 17,428
Investment income, net of investment expenses	12,663	12,450
Net realized investment gains (losses)	(1,057)	1,705
Other income	146	198
Total revenues	24,755	31,781
Benefits, Losses and Expenses
Losses and loss settlement expenses	10,823	11,071
Increase in liability for future policy benefits	5,023	8,579
Amortization of deferred policy acquisition costs	1,895	1,673
Other underwriting expenses	3,864	3,631
Interest on policyholders’ accounts	4,499	4,744
Total benefits, losses and expenses	26,104	29,698
Income (loss) from discontinued operations before income taxes	(1,349)	2,083
Federal income tax expense	563	731
Income from discontinued operations, net of taxes	$ (1,912)	$ 1,352
Earnings per common share from discontinued operations:
Basic (in dollars per share)	$ (0.08)	$ 0.05
Diluted (in dollars per share)	$ (0.07)	$ 0.05