Note 3: Loans and Allowance For Loan Losses: Financing Receivable Credit Quality Indicators (Details) - USD ($) $ in Thousands	Dec. 31, 2016	Dec. 31, 2015
Satisfactory | One To Four Family Residential Construction
Loan Portfolio Internal Grading System Classification	$ 20,771	$ 22,798
Satisfactory | Subdivision Construction
Loan Portfolio Internal Grading System Classification	14,059	34,370
Satisfactory | Land Development
Loan Portfolio Internal Grading System Classification	39,925	47,357
Satisfactory | Commercial Construction
Loan Portfolio Internal Grading System Classification	780,614	600,794
Satisfactory | Owner Occupied One To Four Family Residential
Loan Portfolio Internal Grading System Classification	198,835	108,584
Satisfactory | Non-Owner Occupied One To Four Family Residential
Loan Portfolio Internal Grading System Classification	135,930	144,744
Satisfactory | Commercial Real Estate
Loan Portfolio Internal Grading System Classification	1,160,280	1,005,894
Satisfactory | Other Residential
Loan Portfolio Internal Grading System Classification	658,846	409,172
Satisfactory | Commercial Business
Loan Portfolio Internal Grading System Classification	342,685	355,370
Satisfactory | Industrial Revenue Bonds
Loan Portfolio Internal Grading System Classification	25,065	37,362
Satisfactory | Automobile Loan
Loan Portfolio Internal Grading System Classification	492,165	439,157
Satisfactory | Consumer Loan
Loan Portfolio Internal Grading System Classification	69,338	74,167
Satisfactory | Home Equity Line of Credit
Loan Portfolio Internal Grading System Classification	108,290	83,627
Satisfactory | Acquired FDIC Covered Loans Net of Discount
Loan Portfolio Internal Grading System Classification	134,356	236,055
Satisfactory | Acquired foreclosed assets no longer covered by FDIC loss sharing agreements, net of discounts
Loan Portfolio Internal Grading System Classification	72,552	33,237
Satisfactory | Acquired Non-Covered Loans Net Of Discounts
Loan Portfolio Internal Grading System Classification	76,234	91,614
Satisfactory | Loans Receivable
Loan Portfolio Internal Grading System Classification	4,329,945	3,724,302
Watch | One To Four Family Residential Construction
Loan Portfolio Internal Grading System Classification	966
Watch | Subdivision Construction
Loan Portfolio Internal Grading System Classification	2,729	263
Watch | Land Development
Loan Portfolio Internal Grading System Classification	5,140	6,992
Watch | Owner Occupied One To Four Family Residential
Loan Portfolio Internal Grading System Classification	67	587
Watch | Non-Owner Occupied One To Four Family Residential
Loan Portfolio Internal Grading System Classification	465	516
Watch | Commercial Real Estate
Loan Portfolio Internal Grading System Classification	20,154	18,805
Watch | Other Residential
Loan Portfolio Internal Grading System Classification	4,370	8,422
Watch | Commercial Business
Loan Portfolio Internal Grading System Classification	2,651	1,303
Watch | Loans Receivable
Loan Portfolio Internal Grading System Classification	36,542	36,888
Special Mention | One To Four Family Residential Construction
Loan Portfolio Internal Grading System Classification		728
Special Mention | Subdivision Construction
Loan Portfolio Internal Grading System Classification		3,407
Special Mention | Non-Owner Occupied One To Four Family Residential
Loan Portfolio Internal Grading System Classification		3,827
Special Mention | Commercial Business
Loan Portfolio Internal Grading System Classification		438
Special Mention | Loans Receivable
Loan Portfolio Internal Grading System Classification		8,400
Substandard | Subdivision Construction
Loan Portfolio Internal Grading System Classification	398	464
Substandard | Land Development
Loan Portfolio Internal Grading System Classification	5,559	4,091
Substandard | Owner Occupied One To Four Family Residential
Loan Portfolio Internal Grading System Classification	1,438	1,106
Substandard | Non-Owner Occupied One To Four Family Residential
Loan Portfolio Internal Grading System Classification	529	787
Substandard | Commercial Real Estate
Loan Portfolio Internal Grading System Classification	6,472	18,775
Substandard | Other Residential
Loan Portfolio Internal Grading System Classification	162	1,955
Substandard | Commercial Business
Loan Portfolio Internal Grading System Classification	3,292	469
Substandard | Automobile Loan
Loan Portfolio Internal Grading System Classification	2,068	738
Substandard | Consumer Loan
Loan Portfolio Internal Grading System Classification	663	662
Substandard | Home Equity Line of Credit
Loan Portfolio Internal Grading System Classification	463	339
Substandard | Acquired FDIC Covered Loans Net of Discount
Loan Portfolio Internal Grading System Classification		16
Substandard | Acquired foreclosed assets no longer covered by FDIC loss sharing agreements, net of discounts
Loan Portfolio Internal Grading System Classification	17	101
Substandard | Acquired Non-Covered Loans Net Of Discounts
Loan Portfolio Internal Grading System Classification		1,822
Substandard | Loans Receivable
Loan Portfolio Internal Grading System Classification	21,061	31,325
Total Credit Quality Indicator | One To Four Family Residential Construction
Loan Portfolio Internal Grading System Classification	21,737	23,526
Total Credit Quality Indicator | Subdivision Construction
Loan Portfolio Internal Grading System Classification	17,186	38,504
Total Credit Quality Indicator | Land Development
Loan Portfolio Internal Grading System Classification	50,624	58,440
Total Credit Quality Indicator | Commercial Construction
Loan Portfolio Internal Grading System Classification	780,614	600,794
Total Credit Quality Indicator | Owner Occupied One To Four Family Residential
Loan Portfolio Internal Grading System Classification	200,340	110,277
Total Credit Quality Indicator | Non-Owner Occupied One To Four Family Residential
Loan Portfolio Internal Grading System Classification	136,924	149,874
Total Credit Quality Indicator | Commercial Real Estate
Loan Portfolio Internal Grading System Classification	1,186,906	1,043,474
Total Credit Quality Indicator | Other Residential
Loan Portfolio Internal Grading System Classification	663,378	419,549
Total Credit Quality Indicator | Commercial Business
Loan Portfolio Internal Grading System Classification	348,628	357,580
Total Credit Quality Indicator | Industrial Revenue Bonds
Loan Portfolio Internal Grading System Classification	25,065	37,362
Total Credit Quality Indicator | Automobile Loan
Loan Portfolio Internal Grading System Classification	494,233	439,895
Total Credit Quality Indicator | Consumer Loan
Loan Portfolio Internal Grading System Classification	70,001	74,829
Total Credit Quality Indicator | Home Equity Line of Credit
Loan Portfolio Internal Grading System Classification	108,753	83,966
Total Credit Quality Indicator | Acquired FDIC Covered Loans Net of Discount
Loan Portfolio Internal Grading System Classification	134,356	236,071
Total Credit Quality Indicator | Acquired foreclosed assets no longer covered by FDIC loss sharing agreements, net of discounts
Loan Portfolio Internal Grading System Classification	72,569	33,338
Total Credit Quality Indicator | Acquired Non-Covered Loans Net Of Discounts
Loan Portfolio Internal Grading System Classification	76,234	93,436
Total Credit Quality Indicator | Loans Receivable
Loan Portfolio Internal Grading System Classification	$ 4,387,548	$ 3,800,915