Note 22: Stock Compensation Plans: Schedule of Share-based Compensation, Activity (Details) - Employee Stock Option	12 Months Ended
	Dec. 31, 2016 $ / shares shares
Options Outstanding | Beginning of Period
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number | shares	633,732
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price | $ / shares	$ 31.297
Share based compensation stock option weighted average remaining contractual term	7.22 years
Options Outstanding | End of Period
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number | shares	661,203
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price | $ / shares	$ 33.672
Share based compensation stock option weighted average remaining contractual term	7.23 years
Granted
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number | shares	131,000
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price | $ / shares	$ 41.228
Exercised
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number | shares	(81,812)
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price | $ / shares	$ 26.472
Forfeited
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number | shares	(21,717)
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price | $ / shares	$ 37.082
Options Exercisable
Share-based Compensation Arrangement by Share-based Payment Award, Options, Outstanding, Number | shares	247,920
Share-based Compensation Arrangements by Share-based Payment Award, Options, Grants in Period, Weighted Average Exercise Price | $ / shares	$ 24.367
Share based compensation stock option weighted average remaining contractual term	5.13 years