Note 25: Summary of Unaudited Quarterly Operating Results: Schedule of Quarterly Financial Information (Details) (Quarterly Operating Results, USD $) In Thousands, except Per Share data, unless otherwise specified	3 Months Ended
	Dec. 31, 2012	Sep. 30, 2012	Jun. 30, 2012	Mar. 31, 2012	Dec. 31, 2011	Sep. 30, 2011	Jun. 30, 2011	Mar. 31, 2011	Dec. 31, 2010	Sep. 30, 2010	Jun. 30, 2010	Mar. 31, 2010
Quarterly Operating Results
Interest Income, Operating	$ 50,451	$ 50,159	$ 48,221	$ 44,677	$ 50,518	$ 49,965	$ 49,144	$ 49,040	$ 52,290	$ 41,535	$ 39,612	$ 39,754
Interest Expense Operating	5,825	6,904	7,744	7,904	8,290	8,325	8,852	9,679	10,838	11,341	12,488	13,183
Provision for Other Losses	7,786	8,400	17,600	10,077	10,205	8,500	8,431	8,200	7,330	10,800	12,000	5,500
Net realized gain (losses) and impairment on available for sale securities operating	200	507	1,251	28	(215)	483	(400)		(119)	5,441	3,465
Noninterest Income, Other Operating Income	1,982	2,085	35,848	6,087	15,522	(3,010)	(4,375)	(4,006)	(5,233)	10,497	12,000	7,065
Other Noninterest Expense	30,267	29,152	28,157	24,984	36,161	21,218	20,277	19,820	21,642	20,893	19,127	20,488
Provision for income taxes	177	746	9,039	661	(560)	2,462	1,550	1,731	976	2,853	2,471	2,290
Net income from continuing operations results	8,378	7,042	21,529	7,138	11,944	6,450	5,659	5,604	6,271	6,145	5,526	5,358
Discontinuing operations results	4,070	63	127	359	89	3	231	289	70	17	298	180
Other Operating Income (Expense), Net	12,448	7,105	21,656	7,497	12,033	6,453	5,890	5,893	6,341	6,162	5,824	5,538
Net income available to common shareholders	$ 12,278	$ 6,955	$ 21,512	$ 7,353	$ 11,660	$ 4,443	$ 5,108	$ 5,048	$ 5,482	$ 5,305	$ 4,976	$ 4,699
Earnings per share operating results diluted	$ 0.90	$ 0.51	$ 1.58	$ 0.54	$ 0.85	$ 0.33	$ 0.37	$ 0.36	$ 0.39	$ 0.38	$ 0.35	$ 0.34