Note 6: Loans and Allowance For Loan Losses: Financing Receivable Credit Quality Indicators (Details) - USD ($) $ in Thousands	Jun. 30, 2016	Dec. 31, 2015
Satisfactory | Consumer Loan
Loan Portfolio Internal Grading System Classification	$ 71,377	$ 74,167
Satisfactory | Automobile Loan
Loan Portfolio Internal Grading System Classification	484,061	439,157
Satisfactory | One-to-Four-Family Residential Construction
Loan Portfolio Internal Grading System Classification	27,685	22,798
Satisfactory | Subdivision Construction
Loan Portfolio Internal Grading System Classification	14,496	34,370
Satisfactory | Land Development
Loan Portfolio Internal Grading System Classification	45,554	47,357
Satisfactory | Commercial Construction
Loan Portfolio Internal Grading System Classification	710,926	600,794
Satisfactory | Owner Occupied One-to-Four-Family Residential
Loan Portfolio Internal Grading System Classification	218,403	108,584
Satisfactory | Non-Owner Occupied One To Four Family Residential
Loan Portfolio Internal Grading System Classification	141,780	144,744
Satisfactory | Commercial Real Estate
Loan Portfolio Internal Grading System Classification	1,121,543	1,005,894
Satisfactory | Other Residential
Loan Portfolio Internal Grading System Classification	513,335	409,172
Satisfactory | Commercial Business
Loan Portfolio Internal Grading System Classification	363,168	355,370
Satisfactory | Industrial Revenue Bonds
Loan Portfolio Internal Grading System Classification	34,342	37,362
Satisfactory | Home Equity Line of Credit
Loan Portfolio Internal Grading System Classification	102,138	83,627
Satisfactory | Acquired FDIC Covered Loans Net of Discount
Loan Portfolio Internal Grading System Classification	153,294	236,055
Satisfactory | Acquired Foreclosed Assets No Longer Covered by FDIC Loss Sharing Agreements Net of Discounts
Loan Portfolio Internal Grading System Classification	85,152	33,237
Satisfactory | Acquired Non-Covered Loans Net of Discounts
Loan Portfolio Internal Grading System Classification	82,566	91,614
Satisfactory | Loans Receivable
Loan Portfolio Internal Grading System Classification	4,169,820	3,724,302
Watch | Subdivision Construction
Loan Portfolio Internal Grading System Classification	258	263
Watch | Land Development
Loan Portfolio Internal Grading System Classification	8,596	6,992
Watch | Owner Occupied One-to-Four-Family Residential
Loan Portfolio Internal Grading System Classification	108	587
Watch | Non-Owner Occupied One To Four Family Residential
Loan Portfolio Internal Grading System Classification	549	516
Watch | Commercial Real Estate
Loan Portfolio Internal Grading System Classification	20,204	18,805
Watch | Other Residential
Loan Portfolio Internal Grading System Classification	8,356	8,422
Watch | Commercial Business
Loan Portfolio Internal Grading System Classification	2,580	1,303
Watch | Loans Receivable
Loan Portfolio Internal Grading System Classification	40,651	36,888
Special Mention | One-to-Four-Family Residential Construction
Loan Portfolio Internal Grading System Classification	946	728
Special Mention | Subdivision Construction
Loan Portfolio Internal Grading System Classification	3,320	3,407
Special Mention | Non-Owner Occupied One To Four Family Residential
Loan Portfolio Internal Grading System Classification	3,439	3,827
Special Mention | Commercial Business
Loan Portfolio Internal Grading System Classification	429	438
Special Mention | Loans Receivable
Loan Portfolio Internal Grading System Classification	8,134	8,400
Substandard | Consumer Loan
Loan Portfolio Internal Grading System Classification	608	662
Substandard | Automobile Loan
Loan Portfolio Internal Grading System Classification	1,154	738
Substandard | Subdivision Construction
Loan Portfolio Internal Grading System Classification	397	464
Substandard | Land Development
Loan Portfolio Internal Grading System Classification	4,083	4,091
Substandard | Owner Occupied One-to-Four-Family Residential
Loan Portfolio Internal Grading System Classification	1,287	1,106
Substandard | Non-Owner Occupied One To Four Family Residential
Loan Portfolio Internal Grading System Classification	635	787
Substandard | Commercial Real Estate
Loan Portfolio Internal Grading System Classification	11,861	18,775
Substandard | Other Residential
Loan Portfolio Internal Grading System Classification		1,955
Substandard | Commercial Business
Loan Portfolio Internal Grading System Classification	148	469
Substandard | Home Equity Line of Credit
Loan Portfolio Internal Grading System Classification	373	339
Substandard | Acquired FDIC Covered Loans Net of Discount
Loan Portfolio Internal Grading System Classification	12	16
Substandard | Acquired Foreclosed Assets No Longer Covered by FDIC Loss Sharing Agreements Net of Discounts
Loan Portfolio Internal Grading System Classification	48	101
Substandard | Acquired Non-Covered Loans Net of Discounts
Loan Portfolio Internal Grading System Classification	1,453	1,822
Substandard | Loans Receivable
Loan Portfolio Internal Grading System Classification	22,059	31,325
Total for Portfolio | Consumer Loan
Loan Portfolio Internal Grading System Classification	71,985	74,829
Total for Portfolio | Automobile Loan
Loan Portfolio Internal Grading System Classification	485,215	439,895
Total for Portfolio | One-to-Four-Family Residential Construction
Loan Portfolio Internal Grading System Classification	28,631	23,526
Total for Portfolio | Subdivision Construction
Loan Portfolio Internal Grading System Classification	18,471	38,504
Total for Portfolio | Land Development
Loan Portfolio Internal Grading System Classification	58,233	58,440
Total for Portfolio | Commercial Construction
Loan Portfolio Internal Grading System Classification	710,926	600,794
Total for Portfolio | Owner Occupied One-to-Four-Family Residential
Loan Portfolio Internal Grading System Classification	219,798	110,277
Total for Portfolio | Non-Owner Occupied One To Four Family Residential
Loan Portfolio Internal Grading System Classification	146,403	149,874
Total for Portfolio | Commercial Real Estate
Loan Portfolio Internal Grading System Classification	1,153,608	1,043,474
Total for Portfolio | Other Residential
Loan Portfolio Internal Grading System Classification	521,691	419,549
Total for Portfolio | Commercial Business
Loan Portfolio Internal Grading System Classification	366,325	357,580
Total for Portfolio | Industrial Revenue Bonds
Loan Portfolio Internal Grading System Classification	34,342	37,362
Total for Portfolio | Home Equity Line of Credit
Loan Portfolio Internal Grading System Classification	102,511	83,966
Total for Portfolio | Acquired FDIC Covered Loans Net of Discount
Loan Portfolio Internal Grading System Classification	153,306	236,071
Total for Portfolio | Acquired Foreclosed Assets No Longer Covered by FDIC Loss Sharing Agreements Net of Discounts
Loan Portfolio Internal Grading System Classification	85,200	33,338
Total for Portfolio | Acquired Non-Covered Loans Net of Discounts
Loan Portfolio Internal Grading System Classification	84,019	93,436
Total for Portfolio | Loans Receivable
Loan Portfolio Internal Grading System Classification	$ 4,240,664	$ 3,800,915