Note 6: Loans and Allowance For Loan Losses: Financing Receivable Credit Quality Indicators (Details) - USD ($) $ in Thousands	Jun. 30, 2017	Dec. 31, 2016
Satisfactory | Automobile Loan
Loan Portfolio Internal Grading System Classification	$ 427,145	$ 492,165
Satisfactory | One-to-Four-Family Residential Construction
Loan Portfolio Internal Grading System Classification	20,325	20,771
Satisfactory | Subdivision Construction
Loan Portfolio Internal Grading System Classification	16,413	14,059
Satisfactory | Land Development
Loan Portfolio Internal Grading System Classification	44,066	39,925
Satisfactory | Commercial Construction
Loan Portfolio Internal Grading System Classification	949,034	780,614
Satisfactory | Owner Occupied One-to-Four-Family Residential
Loan Portfolio Internal Grading System Classification	184,983	198,835
Satisfactory | Non-Owner Occupied One To Four Family Residential
Loan Portfolio Internal Grading System Classification	125,678	135,930
Satisfactory | Commercial Real Estate
Loan Portfolio Internal Grading System Classification	1,198,014	1,160,280
Satisfactory | Other Residential
Loan Portfolio Internal Grading System Classification	680,511	658,846
Satisfactory | Commercial Business
Loan Portfolio Internal Grading System Classification	340,162	342,685
Satisfactory | Industrial Revenue Bonds
Loan Portfolio Internal Grading System Classification	23,193	25,065
Satisfactory | Consumer Loan
Loan Portfolio Internal Grading System Classification	65,171	69,338
Satisfactory | Home Equity Line of Credit
Loan Portfolio Internal Grading System Classification	107,881	108,290
Satisfactory | Acquired Foreclosed Assets No Longer Covered by FDIC Loss Sharing Agreements Net of Discounts
Loan Portfolio Internal Grading System Classification	177,771	72,552
Satisfactory | Acquired Non-Covered Loans Net of Discounts
Loan Portfolio Internal Grading System Classification	65,427	76,234
Satisfactory | Loans Receivable
Loan Portfolio Internal Grading System Classification	4,425,774	4,329,945
Satisfactory | Acquired FDIC Covered Loans Net of Discount
Loan Portfolio Internal Grading System Classification		134,356
Watch | One-to-Four-Family Residential Construction
Loan Portfolio Internal Grading System Classification	587	966
Watch | Subdivision Construction
Loan Portfolio Internal Grading System Classification	2,512	2,729
Watch | Land Development
Loan Portfolio Internal Grading System Classification	4,900	5,140
Watch | Owner Occupied One-to-Four-Family Residential
Loan Portfolio Internal Grading System Classification		67
Watch | Non-Owner Occupied One To Four Family Residential
Loan Portfolio Internal Grading System Classification	456	465
Watch | Commercial Real Estate
Loan Portfolio Internal Grading System Classification	18,064	20,154
Watch | Other Residential
Loan Portfolio Internal Grading System Classification	4,140	4,370
Watch | Commercial Business
Loan Portfolio Internal Grading System Classification	2,634	2,651
Watch | Loans Receivable
Loan Portfolio Internal Grading System Classification	33,293	36,542
Substandard | Automobile Loan
Loan Portfolio Internal Grading System Classification	2,201	2,068
Substandard | One-to-Four-Family Residential Construction
Loan Portfolio Internal Grading System Classification	380
Substandard | Subdivision Construction
Loan Portfolio Internal Grading System Classification	105	398
Substandard | Land Development
Loan Portfolio Internal Grading System Classification	138	5,559
Substandard | Owner Occupied One-to-Four-Family Residential
Loan Portfolio Internal Grading System Classification	1,648	1,438
Substandard | Non-Owner Occupied One To Four Family Residential
Loan Portfolio Internal Grading System Classification	890	529
Substandard | Commercial Real Estate
Loan Portfolio Internal Grading System Classification	3,304	6,472
Substandard | Other Residential
Loan Portfolio Internal Grading System Classification	162	162
Substandard | Commercial Business
Loan Portfolio Internal Grading System Classification	5,497	3,292
Substandard | Consumer Loan
Loan Portfolio Internal Grading System Classification	742	663
Substandard | Home Equity Line of Credit
Loan Portfolio Internal Grading System Classification	346	463
Substandard | Acquired Foreclosed Assets No Longer Covered by FDIC Loss Sharing Agreements Net of Discounts
Loan Portfolio Internal Grading System Classification	15	17
Substandard | Loans Receivable
Loan Portfolio Internal Grading System Classification	15,428	21,061
Total for Portfolio | Automobile Loan
Loan Portfolio Internal Grading System Classification	429,346	494,233
Total for Portfolio | One-to-Four-Family Residential Construction
Loan Portfolio Internal Grading System Classification	21,292	21,737
Total for Portfolio | Subdivision Construction
Loan Portfolio Internal Grading System Classification	19,030	17,186
Total for Portfolio | Land Development
Loan Portfolio Internal Grading System Classification	49,104	50,624
Total for Portfolio | Commercial Construction
Loan Portfolio Internal Grading System Classification	949,034	780,614
Total for Portfolio | Owner Occupied One-to-Four-Family Residential
Loan Portfolio Internal Grading System Classification	186,631	200,340
Total for Portfolio | Non-Owner Occupied One To Four Family Residential
Loan Portfolio Internal Grading System Classification	127,024	136,924
Total for Portfolio | Commercial Real Estate
Loan Portfolio Internal Grading System Classification	1,219,382	1,186,906
Total for Portfolio | Other Residential
Loan Portfolio Internal Grading System Classification	684,813	663,378
Total for Portfolio | Commercial Business
Loan Portfolio Internal Grading System Classification	348,293	348,628
Total for Portfolio | Industrial Revenue Bonds
Loan Portfolio Internal Grading System Classification	23,193	25,065
Total for Portfolio | Consumer Loan
Loan Portfolio Internal Grading System Classification	65,913	70,001
Total for Portfolio | Home Equity Line of Credit
Loan Portfolio Internal Grading System Classification	108,227	108,753
Total for Portfolio | Acquired Foreclosed Assets No Longer Covered by FDIC Loss Sharing Agreements Net of Discounts
Loan Portfolio Internal Grading System Classification	177,786	72,569
Total for Portfolio | Acquired Non-Covered Loans Net of Discounts
Loan Portfolio Internal Grading System Classification	65,427	76,234
Total for Portfolio | Loans Receivable
Loan Portfolio Internal Grading System Classification	$ 4,474,495	4,387,548
Total for Portfolio | Acquired FDIC Covered Loans Net of Discount
Loan Portfolio Internal Grading System Classification		$ 134,356