Note 8: Loss Sharing Agreements and Fdic Indemnification Assets: Schedule of Changes in Accretable Yield for Acquired Loan Pools (Details) (Changes in Accretable Yield for Acquired Loans, USD $) In Thousands, unless otherwise specified	3 Months Ended				9 Months Ended
	Sep. 30, 2013		Sep. 30, 2012		Sep. 30, 2013		Sep. 30, 2012
TeamBank
Certain Loans Acquired in Transfer, Accretable Yield	$ 8,610		$ 11,403		$ 12,128		$ 14,662
Acquired Loans Accretion	(1,450)		(4,709)		(7,050)		(13,799)
Acquired Loans Reclassification from nonaccretable yield	1,109	[1]	5,863	[1]	3,191	[2]	11,694	[2]
Certain Loans Acquired in Transfer, Accretable Yield	8,269		12,557		8,269		12,557
Vantus Bank
Certain Loans Acquired in Transfer, Accretable Yield	8,647		17,882		13,538		21,967
Acquired Loans Accretion	(1,832)		(6,980)		(7,492)		(17,320)
Acquired Loans Reclassification from nonaccretable yield	(379)	[1]	4,510	[1]	390	[2]	10,765	[2]
Certain Loans Acquired in Transfer, Accretable Yield	6,436		15,412		6,436		15,412
Sun Security Bank
Certain Loans Acquired in Transfer, Accretable Yield	10,055		9,775		11,259		12,769
Acquired Loans Accretion	(4,795)		(3,668)		(13,021)		(10,750)
Acquired Loans Reclassification from nonaccretable yield	5,293	[1]	2,902	[1]	12,315	[2]	6,990	[2]
Certain Loans Acquired in Transfer, Accretable Yield	10,553		9,009		10,553		9,009
InterBank
Certain Loans Acquired in Transfer, Accretable Yield	34,967				42,574
Acquired loans accretable yield			43,227				46,078
Acquired Loans Accretion	(7,034)		(4,303)		(20,423)		(7,154)
Acquired Loans Reclassification from nonaccretable yield	7,774	[1]			13,556	[2]
Certain Loans Acquired in Transfer, Accretable Yield	$ 35,707		$ 38,924		$ 35,707		$ 38,924

[1] Represents increases in estimated cash flows expected to be received from the acquired loan pools, primarily due to lower estimated credit losses. The numbers also include changes in expected accretion of the loan pools for TeamBank, Vantus Bank, Sun Security Bank and InterBank for the three months ended September 30, 2013, totaling $340,000, $0, $4.3 million and $7.3 million, respectively, and for the three months ended September 30, 2012, totaling $3.1 million, $4.0 million, $1.8 million and $0, respectively.

[2] Represents increases in estimated cash flows expected to be received from the acquired loan pools, primarily due to lower estimated credit losses. The numbers also include changes in expected accretion of the loan pools for TeamBank, Vantus Bank, Sun Security Bank and InterBank for the nine months ended September 30, 2013, totaling $2.5 million, $516,000, $9.0 million and $14.9 million, respectively, and for the nine months ended September 30, 2012, totaling $6.0 million, $7.6 million, $5.2 million and $0, respectively.