Note 1: Nature of Operations and Summary of Significant Accounting Policies: Earnings Per Common Share: Schedule of Earnings Per Share, Basic and Diluted (Details) - USD ($) $ / shares in Units, $ in Thousands	12 Months Ended
	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Details
Earnings per share net income	$ 46,502	$ 43,529	$ 33,729
Net Income Available to Common Shareholders	$ 45,948	$ 42,950	$ 33,150
Weighted Average Number of Shares Outstanding, Basic	13,818	13,700	13,635
Average common share stock options outstanding	182	176	80
Weighted Average Number of Shares Outstanding, Diluted	14,000	13,876	13,715
Basic	$ 3.33	$ 3.14	$ 2.43
Diluted	$ 3.28	$ 3.10	$ 2.42