Note 22: Stock Compensation Plans: Schedule of Nonvested Share Activity (Details) - Employee Stock Option	12 Months Ended
	Dec. 31, 2016 $ / shares shares
Nonvested Options | Beginning of Period
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number | shares	412,164
Share Based Compensation Arrangement by Share Based Payment Award Nonvested Weighted Average Exercise Price	$ 35.479
Share Based Compensation Arrangement by Share Based Payment Award Nonvested Weighted Average Grant Date Fair Value	$ 6.039
Nonvested Options | End of Period
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number | shares	413,283
Share Based Compensation Arrangement by Share Based Payment Award Nonvested Weighted Average Exercise Price	$ 39.253
Share Based Compensation Arrangement by Share Based Payment Award Nonvested Weighted Average Grant Date Fair Value	$ 6.631
Granted
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number | shares	131,000
Share Based Compensation Arrangement by Share Based Payment Award Nonvested Weighted Average Exercise Price	$ 41.228
Share Based Compensation Arrangement by Share Based Payment Award Nonvested Weighted Average Grant Date Fair Value	$ 6.592
Vested This Period
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number | shares	(109,744)
Share Based Compensation Arrangement by Share Based Payment Award Nonvested Weighted Average Exercise Price	$ 27.770
Share Based Compensation Arrangement by Share Based Payment Award Nonvested Weighted Average Grant Date Fair Value	$ 4.337
Nonvested Options Forfeited
Share-based Compensation Arrangement by Share-based Payment Award, Equity Instruments Other than Options, Nonvested, Number | shares	(20,137)
Share Based Compensation Arrangement by Share Based Payment Award Nonvested Weighted Average Exercise Price	$ 38.248
Share Based Compensation Arrangement by Share Based Payment Award Nonvested Weighted Average Grant Date Fair Value	$ 6.779