Note 12. Stockholders' Equity: Schedule of Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Accumulated other comprehensive income (loss)	$ (3,440)	$ 22	$ (10,472)	$ 15,013
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(256)	15,944	(14,265)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	3,206	5,251	11,826
Other comprehensive income (loss), net of tax	(3,462)	10,693	(26,091)
Other comprehensive (income) loss, net of tax, attributable to noncontrolling interests	(5)	(199)	665
Unrealized Gains/Losses Purchased from Noncontrolling Interests	5		(59)
Accumulated Net Unrealized Investment Gain (Loss)
Accumulated other comprehensive income (loss)	(3,433)	72	(10,350)	15,231
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	(299)	15,872	(14,361)
Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax	3,206	5,251	11,826
Other comprehensive income (loss), net of tax	(3,505)	10,621	(26,187)
Other comprehensive (income) loss, net of tax, attributable to noncontrolling interests	(5)	(199)	665
Unrealized Gains/Losses Purchased from Noncontrolling Interests	5		(59)
Accumulated Net Gain (Loss) from Designated or Qualifying Cash Flow Hedges
Accumulated other comprehensive income (loss)	(7)	(50)	(122)	$ (218)
Other Comprehensive Income (Loss), before Reclassifications, Net of Tax	43	72	96
Other comprehensive income (loss), net of tax	$ 43	$ 72	$ 96