Note 4: Acquired Loans, Loss Sharing Agreements and FDIC Indemnification Assets: Vantus Bank Acquisition Policy: Busienss Acquisition, Vantus Bank Other Assets Acquired (Details) (Vantus Bank, USD $)	Sep. 04, 2009
Business Acquisition, Other Assets Acquired	$ 47,200,000
Business Acquisition, Liabilities Assumed	444,000,000
Core Deposit Intangible Asset	2,200,000
Cash Received from Federal Deposit Insurance Corporation	131,300,000
Securities Investment
Business Acquisition, Other Assets Acquired	23,100,000
Cash and Cash Equivalents
Business Acquisition, Other Assets Acquired	12,800,000
Foreclosed assets
Business Acquisition, Other Assets Acquired	2,200,000
Investment in Federal Home Loan Bank Stock
Business Acquisition, Other Assets Acquired	5,900,000
Deposits
Business Acquisition, Liabilities Assumed	352,700,000
Federal Home Loan Bank Advances
Business Acquisition, Liabilities Assumed	74,600,000
Federal Reserve Bank Advances
Business Acquisition, Liabilities Assumed	10,000,000
Repurchase Agreements
Business Acquisition, Liabilities Assumed	$ 3,200,000