Note 4: Acquired Loans, Loss Sharing Agreements and FDIC Indemnification Assets: Business Acquisition Fair Value and Expected Cash Flows Policy: Schedule of Impact of Acquired Loans on Financial Results (Details) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Dec. 31, 2012	Dec. 31, 2011	Dec. 31, 2010
Impact of acquired loan pools on net interest income	$ 36,186	$ 49,208	$ 19,452
Impact of acquired loan pools on non-interest income	(29,864)	(43,835)	(17,134)
Net impact of acquired loan pools to pre-tax income	$ 6,322	$ 5,373	$ 2,318