Stockholders' Equity Note Disclosure [Text Block]: Reclassification out of Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2017	Sep. 30, 2016	Sep. 30, 2017	Sep. 30, 2016
Gain (Loss) on Investments, Excluding Other than Temporary Impairments	$ 715	$ 2,367	$ 987	$ 3,945
Net impairment losses recognized in earnings	0	1,475	0	1,475
Income taxes (benefits)	2,666	2,636	(5,175)	8,566
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total	5,213	4,366	24,529	124,669
Reclassification out of Accumulated Other Comprehensive Income | Accumulated Net Investment Gain (Loss) Attributable to Parent
Gain (Loss) on Investments, Excluding Other than Temporary Impairments	719	2,446	1,062	4,067
Net impairment losses recognized in earnings	0	1,475	0	1,475
Income (loss) before income taxes	719	971	1,062	2,592
Income taxes (benefits)	252	398	377	974
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total	$ 467	$ 573	$ 685	$ 1,618