Financial Schedules Schedule II - Statement of Operations (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2019	Sep. 30, 2019	Jun. 30, 2019	Mar. 31, 2019	Dec. 31, 2018	Sep. 30, 2018	Jun. 30, 2018	Mar. 31, 2018	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Condensed Financial Statements, Captions [Line Items]
Other Income									$ 1,418	$ 1,833	$ 1,243
Realized investment gains (losses), net									5,249	108	518
Total revenue	$ 69,806	$ 61,467	$ 56,866	$ 62,406	$ 65,570	$ 61,161	$ 59,842	$ 57,433	250,545	244,006	252,627
Federal income tax expense (benefit)	(23)	86	1,242	5,810	(596)	12,671	(1,553)	2,542	7,115	13,064	35,141
Net income (loss)	$ 4,951	$ 2,046	$ (4,565)	$ (3,802)	$ (1,432)	$ (7,109)	$ (2,558)	$ 37	(1,370)	(11,062)	(38,127)
Other Comprehensive Income (Loss), Securities, Available-for-sale, Adjustment, after Tax									71,751	(25,128)	12,540
Comprehensive Income (Loss), Net of Tax, Attributable to Parent									70,381	(36,190)	(25,587)
Parent Company [Member]
Condensed Financial Statements, Captions [Line Items]
Management service fees									43,694	43,323	42,367
Investment income									1,685	1,086	1,282
Other Income									2	1	80
Realized investment gains (losses), net									(3,013)	(196)	0
Total revenue									42,368	44,214	43,729
General expenes									46,020	44,009	41,680
Taxes, licenses and fees									146	761	1,203
Total expenses									46,166	44,770	42,883
Income from continuing operations, before federal income tax and change in equity of consolidating affiliates									(3,798)	(556)	846
Federal income tax expense (benefit)									(4,491)	(185)	228
Income before equity in income of consolidated subsidiaries									693	(371)	618
Equity in income of consolidated subsidiaries									(2,063)	(10,691)	(38,745)
Net income (loss)									$ (1,370)	$ (11,062)	$ (38,127)