Stockholders' Equity Note Disclosure [Text Block]: Reclassification out of Accumulated Other Comprehensive Income (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Gain (Loss) on Investments, Excluding Other than Temporary Impairments	$ 100	$ 1,018	$ 272	$ 1,578
Income taxes (benefits)	(10,379)	2,354	(7,841)	5,930
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total	14,307	4,637	19,316	120,303
Reclassification out of Accumulated Other Comprehensive Income | Accumulated Net Investment Gain (Loss) Attributable to Parent
Gain (Loss) on Investments, Excluding Other than Temporary Impairments	146	993	343	1,621
Income (loss) before income taxes	146	993	343	1,621
Income taxes (benefits)	76	354	125	576
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Total	$ 70	$ 639	$ 218	$ 1,045