Note 12: Securities Sold Under Reverse Repurchase Agreements: Schedule of Repurchase Agreements (Details) - Financial Assets Sold under Agreement to Repurchase - USD ($) $ in Thousands	Jun. 30, 2015	Dec. 31, 2014
Securities Sold under Agreements to Repurchase, Fair Value of Collateral	$ 216,100	$ 168,993
Maturity Overnight | Federal Home Loan Bank Certificates and Obligations (FHLB)
Securities Sold under Agreements to Repurchase, Fair Value of Collateral	41,000	10,000
Maturity Overnight | Mortgage Backed Securities, Other
Securities Sold under Agreements to Repurchase, Fair Value of Collateral	$ 175,100	$ 158,993