Note 8: Acquired Loans, Loss Sharing Agreements and FDIC Indemnification Assets: Schedule of InterBank FDIC Indemnification Asset (Details) (USD $) In Thousands, unless otherwise specified	Sep. 30, 2014		Dec. 31, 2013
InterBank Loans
Initial basis for loss sharing determination, net of activity since acquisition date	$ 254,427		$ 284,975
Non-credit premium (discount), net of activity since acquisition date	1,488		1,905
Reclassification from nonaccretable discount to accretable discount due to change in expected losses (net of accretion to date)	(23,518)		(21,218)
Original estimated fair value of assets, net of activity since acquisition date	(203,787)		(213,539)
Expected loss remaining	28,610		52,123
Assumed loss sharing recovery percentage	82.00%		82.00%
Estimated loss sharing value	23,444	[1]	42,654
FDIC loss share clawback	3,793		2,893
Indemnification assets to be amortized resulting from change in expected losses	18,814		16,974
Accretable discount on FDIC indemnification asset	(3,350)		(4,874)
FDIC Indemnification Asset, Total	42,701		57,647
InterBank Foreclosed Assets
Initial basis for loss sharing determination, net of activity since acquisition date	5,076		6,543
Original estimated fair value of assets, net of activity since acquisition date	(3,976)		(5,073)
Expected loss remaining	1,100		1,470
Assumed loss sharing recovery percentage	80.00%		80.00%
Estimated loss sharing value	880	[1]	1,176
Accretable discount on FDIC indemnification asset	(33)		(33)
FDIC Indemnification Asset, Total	$ 847		$ 1,143

[1] Includes $400,000 impairment of indemnification asset for loans