Note 6: Loans and Allowance For Loan Losses: Financing Receivable Credit Quality Indicators (Details) - USD ($) $ in Thousands	Mar. 31, 2017	Dec. 31, 2016
Satisfactory | Consumer Loan
Loan Portfolio Internal Grading System Classification	$ 65,432	$ 69,338
Satisfactory | Automobile Loan
Loan Portfolio Internal Grading System Classification	460,955	492,165
Satisfactory | One-to-Four-Family Residential Construction
Loan Portfolio Internal Grading System Classification	22,781	20,771
Satisfactory | Subdivision Construction
Loan Portfolio Internal Grading System Classification	15,150	14,059
Satisfactory | Land Development
Loan Portfolio Internal Grading System Classification	43,487	39,925
Satisfactory | Commercial Construction
Loan Portfolio Internal Grading System Classification	827,717	780,614
Satisfactory | Owner Occupied One-to-Four-Family Residential
Loan Portfolio Internal Grading System Classification	187,975	198,835
Satisfactory | Non-Owner Occupied One To Four Family Residential
Loan Portfolio Internal Grading System Classification	129,992	135,930
Satisfactory | Commercial Real Estate
Loan Portfolio Internal Grading System Classification	1,202,417	1,160,280
Satisfactory | Other Residential
Loan Portfolio Internal Grading System Classification	664,480	658,846
Satisfactory | Commercial Business
Loan Portfolio Internal Grading System Classification	335,931	342,685
Satisfactory | Industrial Revenue Bonds
Loan Portfolio Internal Grading System Classification	24,411	25,065
Satisfactory | Home Equity Line of Credit
Loan Portfolio Internal Grading System Classification	106,816	108,290
Satisfactory | Acquired FDIC Covered Loans Net of Discount
Loan Portfolio Internal Grading System Classification	123,902	134,356
Satisfactory | Acquired Foreclosed Assets No Longer Covered by FDIC Loss Sharing Agreements Net of Discounts
Loan Portfolio Internal Grading System Classification	67,108	72,552
Satisfactory | Acquired Non-Covered Loans Net of Discounts
Loan Portfolio Internal Grading System Classification	68,006	76,234
Satisfactory | Loans Receivable
Loan Portfolio Internal Grading System Classification	4,346,560	4,329,945
Watch | One-to-Four-Family Residential Construction
Loan Portfolio Internal Grading System Classification	712	966
Watch | Subdivision Construction
Loan Portfolio Internal Grading System Classification	2,486	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	460	465
Watch | Commercial Real Estate
Loan Portfolio Internal Grading System Classification	18,738	20,154
Watch | Other Residential
Loan Portfolio Internal Grading System Classification	4,353	4,370
Watch | Commercial Business
Loan Portfolio Internal Grading System Classification	2,667	2,651
Watch | Loans Receivable
Loan Portfolio Internal Grading System Classification	34,316	36,542
Substandard | Consumer Loan
Loan Portfolio Internal Grading System Classification	636	663
Substandard | Automobile Loan
Loan Portfolio Internal Grading System Classification	2,060	2,068
Substandard | One-to-Four-Family Residential Construction
Loan Portfolio Internal Grading System Classification	381
Substandard | Subdivision Construction
Loan Portfolio Internal Grading System Classification	394	398
Substandard | Land Development
Loan Portfolio Internal Grading System Classification	4,058	5,559
Substandard | Owner Occupied One-to-Four-Family Residential
Loan Portfolio Internal Grading System Classification	1,490	1,438
Substandard | Non-Owner Occupied One To Four Family Residential
Loan Portfolio Internal Grading System Classification	646	529
Substandard | Commercial Real Estate
Loan Portfolio Internal Grading System Classification	5,128	6,472
Substandard | Other Residential
Loan Portfolio Internal Grading System Classification	164	162
Substandard | Commercial Business
Loan Portfolio Internal Grading System Classification	5,505	3,292
Substandard | Home Equity Line of Credit
Loan Portfolio Internal Grading System Classification	347	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	20,824	21,061
Total for Portfolio | Consumer Loan
Loan Portfolio Internal Grading System Classification	66,068	70,001
Total for Portfolio | Automobile Loan
Loan Portfolio Internal Grading System Classification	463,015	494,233
Total for Portfolio | One-to-Four-Family Residential Construction
Loan Portfolio Internal Grading System Classification	23,874	21,737
Total for Portfolio | Subdivision Construction
Loan Portfolio Internal Grading System Classification	18,030	17,186
Total for Portfolio | Land Development
Loan Portfolio Internal Grading System Classification	52,445	50,624
Total for Portfolio | Commercial Construction
Loan Portfolio Internal Grading System Classification	827,717	780,614
Total for Portfolio | Owner Occupied One-to-Four-Family Residential
Loan Portfolio Internal Grading System Classification	189,465	200,340
Total for Portfolio | Non-Owner Occupied One To Four Family Residential
Loan Portfolio Internal Grading System Classification	131,098	136,924
Total for Portfolio | Commercial Real Estate
Loan Portfolio Internal Grading System Classification	1,226,283	1,186,906
Total for Portfolio | Other Residential
Loan Portfolio Internal Grading System Classification	668,997	663,378
Total for Portfolio | Commercial Business
Loan Portfolio Internal Grading System Classification	344,103	348,628
Total for Portfolio | Industrial Revenue Bonds
Loan Portfolio Internal Grading System Classification	24,411	25,065
Total for Portfolio | Home Equity Line of Credit
Loan Portfolio Internal Grading System Classification	107,163	108,753
Total for Portfolio | Acquired FDIC Covered Loans Net of Discount
Loan Portfolio Internal Grading System Classification	123,902	134,356
Total for Portfolio | Acquired Foreclosed Assets No Longer Covered by FDIC Loss Sharing Agreements Net of Discounts
Loan Portfolio Internal Grading System Classification	67,123	72,569
Total for Portfolio | Acquired Non-Covered Loans Net of Discounts
Loan Portfolio Internal Grading System Classification	68,006	76,234
Total for Portfolio | Loans Receivable
Loan Portfolio Internal Grading System Classification	$ 4,401,700	$ 4,387,548