Note 10: Deposits: Schedule of Deposit Liabilities (Details) - USD ($) $ in Thousands		Jun. 30, 2020	Dec. 31, 2019
Deposits		$ 4,512,158	$ 3,960,106
Time Deposits:
Total time deposits (weighted average rate 1.44% and 2.09%)	[1]	1,707,140	1,721,109
Total time deposits (weighted average rate 1.44% and 2.09%)	[1]	1,707,140	1,721,109
Non-interest-bearing demand deposits		879,245	687,068
Non-interest-bearing demand deposits		879,245	687,068
Interest-bearing demand and savings deposits (Weighted average rate 0.34% and 0.55%)	[2]	1,925,773	1,551,929
Interest-bearing demand and savings deposits (Weighted average rate 0.34% and 0.55%)	[2]	1,925,773	1,551,929
Total Deposits		4,512,158	3,960,106
Total Deposits		4,512,158	3,960,106
0.00% - 0.99%
Deposits		478,525	122,649
1.00% - 1.99%
Deposits		894,301	523,816
2.00% - 2.99%
Deposits		315,071	1,053,914
3.00% - 3.99%
Deposits		18,822	19,849
4.00% - 4.99%
Deposits		$ 421	$ 881

[1] Weighted average rate 1.74% and 2.09%

[2] Weighted average rate 0.48% and 0.55%