Note 9: Deposits (Details) - USD ($) $ in Thousands		Jun. 30, 2016	Dec. 31, 2015
Deposits		$ 3,384,020	$ 3,268,626
Non-Interest Bearing Demand Deposits
Deposits		595,760	571,629
Interest Bearing Demand and Savings Deposits
Deposits	[1]	1,487,635	1,408,850
Total Deposits
Deposits		3,384,020	3,268,626
Bank Time Deposits | 0.00% - 0.99%
Deposits		703,085	863,865
Bank Time Deposits | 1.00% - 1.99%
Deposits		547,129	381,956
Bank Time Deposits | 2.00% - 2.99%
Deposits		48,341	39,592
Bank Time Deposits | 3.00% - 3.99%
Deposits		579	1,137
Bank Time Deposits | 4.00% - 4.99%
Deposits		1,219	1,304
Bank Time Deposits | 5.00% and above
Deposits		272	293
Bank Time Deposits | Total Time Deposits
Deposits	[2]	$ 1,300,625	$ 1,288,147

[1] (0.25% - 0.24%)

[2] (0.98% - 0.85%)