Condensed Financial Information of Parent Company Only Disclosure: Condensed Income Statement (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2017	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Dec. 31, 2016	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Net Investment Income									$ 16,276	$ 16,570	$ 17,237
Gain (Loss) on Investments, Excluding Other than Temporary Impairments									2,539	4,502	3,094
Other Income									2,648	12,257	10,267
Revenues	$ 82,665	$ 83,752	$ 82,237	$ 71,840	$ 78,871	$ 78,542	$ 77,696	$ 75,895	320,494	311,004	530,495
Interest Expense, Debt									0	1,534	1,798
Income (Loss) from Equity Method Investments									1,846	62	405
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest									28,336	32,065	43,878
Income taxes (benefits)									(13,794)	9,555	15,904
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	17,601	5,213	14,307	5,009	7,753	4,366	4,495	5,896	42,130	22,510	27,974
Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax									0	117,617	4,310
Discontinued Operation, Tax Effect of Discontinued Operation									0	6,813	1,762
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest	0	0	0	0	892	0	142	109,770	0	110,804	2,548
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total	17,601	5,213	14,307	5,009	8,645	4,366	4,637	115,666	42,130	133,314	30,522
(Income) loss from noncontrolling interests in subsidiaries									(88)	(10,016)	(578)
Net Income (Loss) Attributable to Parent, Total	$ 17,546	$ 5,229	$ 14,331	$ 4,936	$ 8,529	$ 4,323	$ 4,436	$ 106,010	42,042	123,298	29,944
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax									3,181	(3,508)	(3,462)
Other Comprehensive Income (Loss), Net of Tax, Total									3,181	(3,508)	(3,462)
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest									45,311	129,806	27,060
Comprehensive (income) loss, net of tax, attributable to noncontrolling interests									(88)	(10,134)	(583)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent									45,223	119,672	26,477
Parent Company
Net Investment Income									576	146	112
Gain (Loss) on Investments, Excluding Other than Temporary Impairments									189	(121)	(506)
Other Income									1,533	1,619	1,800
Revenues									2,298	1,644	1,406
Interest Expense, Debt									0	1,443	1,567
General and Administrative Expense									7,675	8,837	5,506
Operating Expenses									7,675	10,280	7,073
Income (Loss) from Continuing Operations before Equity Method Investments, Income Taxes, Extraordinary Items, Noncontrolling Interest									(5,377)	(8,636)	(5,667)
Income (Loss) from Equity Method Investments									44,854	28,843	32,118
Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest									39,477	20,207	26,451
Income taxes (benefits)									(2,653)	(2,303)	(1,523)
Income (Loss) from Continuing Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest									42,130	22,510	27,974
Discontinued Operation, Income (Loss) from Discontinued Operation, before Income Tax									0	117,617	4,310
Discontinued Operation, Tax Effect of Discontinued Operation									0	6,813	1,762
Income (Loss) from Discontinued Operations, Net of Tax, Including Portion Attributable to Noncontrolling Interest									0	110,804	2,548
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total									42,130	133,314	30,522
(Income) loss from noncontrolling interests in subsidiaries									(88)	(10,016)	(578)
Net Income (Loss) Attributable to Parent, Total									42,042	123,298	29,944
Other Comprehensive Income (Loss), Available-for-sale Securities Adjustment, Net of Tax									73	114	(51)
Equity in unrealized gains (losses) on available-for-sale securities of subsidiaries									3,108	(3,622)	(3,411)
Other Comprehensive Income (Loss), Net of Tax, Total									3,181	(3,508)	(3,462)
Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest									45,311	129,806	27,060
Comprehensive (income) loss, net of tax, attributable to noncontrolling interests									(88)	(10,134)	(583)
Comprehensive Income (Loss), Net of Tax, Attributable to Parent									$ 45,223	$ 119,672	$ 26,477