Discontinued Operations (Statements of Income) (Details) - USD ($) $ / shares in Units, $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Benefits, Losses and Expenses
Income from discontinued operations, net of taxes	$ 0	$ 1,218	$ (1,912)	$ 5,419
Earnings (loss) per common share from discontinued operations:
Basic (in dollars per share)	$ 0	$ 0.05	$ (0.08)	$ 0.21
Diluted (in dollars per share)	$ 0	$ 0.05	$ (0.07)	$ 0.21
United Life | Discontinued Operations, Disposed of by Sale
Revenues
Net premiums earned	$ 0	$ 14,230	$ 13,003	$ 45,999
Investment income, net of investment expenses	0	12,354	12,663	37,230
Net realized investment gains (losses)	0	296	(1,057)	3,600
Other income	0	174	146	498
Total revenues	0	27,054	24,755	87,327
Benefits, Losses and Expenses
Losses and loss settlement expenses	0	10,506	10,823	30,679
Increase in liability for future policy benefits	0	5,481	5,023	19,341
Amortization of deferred policy acquisition costs	0	2,156	1,895	5,524
Other underwriting expenses	0	2,444	3,864	9,452
Interest on policyholders’ accounts	0	4,587	4,499	13,982
Total benefits, losses and expenses	0	25,174	26,104	78,978
Income (loss) from discontinued operations before income taxes	0	1,880	(1,349)	8,349
Federal income tax expense	0	662	563	2,930
Income from discontinued operations, net of taxes	$ 0	$ 1,218	$ (1,912)	$ 5,419
Earnings (loss) per common share from discontinued operations:
Basic (in dollars per share)	$ 0	$ 0.05	$ (0.08)	$ 0.21
Diluted (in dollars per share)	$ 0	$ 0.05	$ (0.07)	$ 0.21