Note 4: Acquired Loans, Loss Sharing Agreements and FDIC Indemnification Assets: Interbank Acquisition Policy: Busdiness Acquisition, InterBank Other Assets Acquired (Details) (InterBank, USD $) In Thousands, unless otherwise specified	Apr. 27, 2012
Business Acquisition, Other Assets Acquired	$ 79,800
Business Acquisition, Liabilities Assumed	458,700
Core Deposit Intangible Asset	1,000
Cash Received from Federal Deposit Insurance Corporation	40,800
Securities Investment
Business Acquisition, Other Assets Acquired	34,900
Cash and Cash Equivalents
Business Acquisition, Other Assets Acquired	34,500
Foreclosed assets
Business Acquisition, Other Assets Acquired	6,200
Investment in Federal Home Loan Bank Stock
Business Acquisition, Other Assets Acquired	585
Other Assets
Business Acquisition, Other Assets Acquired	2,600
Deposits
Business Acquisition, Liabilities Assumed	456,300
Other Liabilities
Business Acquisition, Liabilities Assumed	$ 2,400