Note 6: Loans and Allowance For Loan Losses: Financing Receivable Credit Quality Indicators (Details) - USD ($) $ in Thousands	Mar. 31, 2016	Dec. 31, 2015
Satisfactory | Consumer Loan
Loan Portfolio Internal Grading System Classification	$ 74,247	$ 74,167
Satisfactory | Automobile Loan
Loan Portfolio Internal Grading System Classification	467,969	439,157
Satisfactory | One-to-Four-Family Residential Construction
Loan Portfolio Internal Grading System Classification	27,097	22,798
Satisfactory | Subdivision Construction
Loan Portfolio Internal Grading System Classification	24,273	34,370
Satisfactory | Land Improvements
Loan Portfolio Internal Grading System Classification	55,031	47,357
Satisfactory | Commercial Construction
Loan Portfolio Internal Grading System Classification	629,846	600,794
Satisfactory | Owner Occupied One-to-Four-Family Residential
Loan Portfolio Internal Grading System Classification	226,786	108,584
Satisfactory | NonOwnerOccupiedOneToFourFamilyResidentialMember
Loan Portfolio Internal Grading System Classification	143,569	144,744
Satisfactory | Commercial Real Estate
Loan Portfolio Internal Grading System Classification	1,007,471	1,005,894
Satisfactory | Other Residential
Loan Portfolio Internal Grading System Classification	404,801	409,172
Satisfactory | Commercial Business
Loan Portfolio Internal Grading System Classification	350,273	355,370
Satisfactory | Industrial Revenue Bonds
Loan Portfolio Internal Grading System Classification	36,407	37,362
Satisfactory | Home Equity Line of Credit
Loan Portfolio Internal Grading System Classification	98,313	83,627
Satisfactory | Acquired FDIC Covered Loans Net of Discount
Loan Portfolio Internal Grading System Classification	224,330	236,055
Satisfactory | Acquired Foreclosed Assets No Longer Covered by FDIC Loss Sharing Agreements Net of Discounts
Loan Portfolio Internal Grading System Classification	31,689	33,237
Satisfactory | Acquired Non-Covered Loans Net of Discounts
Loan Portfolio Internal Grading System Classification	86,634	91,614
Satisfactory | Loans Receivable
Loan Portfolio Internal Grading System Classification	3,888,736	3,724,302
Watch | Subdivision Construction
Loan Portfolio Internal Grading System Classification	261	263
Watch | Land Improvements
Loan Portfolio Internal Grading System Classification	6,978	6,992
Watch | Owner Occupied One-to-Four-Family Residential
Loan Portfolio Internal Grading System Classification	511	587
Watch | NonOwnerOccupiedOneToFourFamilyResidentialMember
Loan Portfolio Internal Grading System Classification	717	516
Watch | Commercial Real Estate
Loan Portfolio Internal Grading System Classification	23,519	18,805
Watch | Other Residential
Loan Portfolio Internal Grading System Classification	8,384	8,422
Watch | Commercial Business
Loan Portfolio Internal Grading System Classification	1,366	1,303
Watch | Loans Receivable
Loan Portfolio Internal Grading System Classification	41,736	36,888
Special Mention | One-to-Four-Family Residential Construction
Loan Portfolio Internal Grading System Classification	710	728
Special Mention | Subdivision Construction
Loan Portfolio Internal Grading System Classification	3,363	3,407
Special Mention | NonOwnerOccupiedOneToFourFamilyResidentialMember
Loan Portfolio Internal Grading System Classification	3,459	3,827
Special Mention | Commercial Business
Loan Portfolio Internal Grading System Classification	433	438
Special Mention | Loans Receivable
Loan Portfolio Internal Grading System Classification	7,965	8,400
Substandard | Consumer Loan
Loan Portfolio Internal Grading System Classification	740	662
Substandard | Automobile Loan
Loan Portfolio Internal Grading System Classification	952	738
Substandard | Subdivision Construction
Loan Portfolio Internal Grading System Classification	431	464
Substandard | Land Improvements
Loan Portfolio Internal Grading System Classification	4,089	4,091
Substandard | Owner Occupied One-to-Four-Family Residential
Loan Portfolio Internal Grading System Classification	1,279	1,106
Substandard | NonOwnerOccupiedOneToFourFamilyResidentialMember
Loan Portfolio Internal Grading System Classification	716	787
Substandard | Commercial Real Estate
Loan Portfolio Internal Grading System Classification	17,190	18,775
Substandard | Other Residential
Loan Portfolio Internal Grading System Classification	1,932	1,955
Substandard | Commercial Business
Loan Portfolio Internal Grading System Classification	354	469
Substandard | Home Equity Line of Credit
Loan Portfolio Internal Grading System Classification	447	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	72	101
Substandard | Acquired Non-Covered Loans Net of Discounts
Loan Portfolio Internal Grading System Classification	1,584	1,822
Substandard | Loans Receivable
Loan Portfolio Internal Grading System Classification	29,798	31,325
Total for Portfolio | Consumer Loan
Loan Portfolio Internal Grading System Classification	74,987	74,829
Total for Portfolio | Automobile Loan
Loan Portfolio Internal Grading System Classification	468,921	439,895
Total for Portfolio | One-to-Four-Family Residential Construction
Loan Portfolio Internal Grading System Classification	27,807	23,526
Total for Portfolio | Subdivision Construction
Loan Portfolio Internal Grading System Classification	28,328	38,504
Total for Portfolio | Land Improvements
Loan Portfolio Internal Grading System Classification	66,098	58,440
Total for Portfolio | Commercial Construction
Loan Portfolio Internal Grading System Classification	629,846	600,794
Total for Portfolio | Owner Occupied One-to-Four-Family Residential
Loan Portfolio Internal Grading System Classification	228,576	110,277
Total for Portfolio | NonOwnerOccupiedOneToFourFamilyResidentialMember
Loan Portfolio Internal Grading System Classification	148,461	149,874
Total for Portfolio | Commercial Real Estate
Loan Portfolio Internal Grading System Classification	1,048,180	1,043,474
Total for Portfolio | Other Residential
Loan Portfolio Internal Grading System Classification	415,117	419,549
Total for Portfolio | Commercial Business
Loan Portfolio Internal Grading System Classification	352,426	357,580
Total for Portfolio | Industrial Revenue Bonds
Loan Portfolio Internal Grading System Classification	36,407	37,362
Total for Portfolio | Home Equity Line of Credit
Loan Portfolio Internal Grading System Classification	98,760	83,966
Total for Portfolio | Acquired FDIC Covered Loans Net of Discount
Loan Portfolio Internal Grading System Classification	224,342	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	31,761	33,338
Total for Portfolio | Acquired Non-Covered Loans Net of Discounts
Loan Portfolio Internal Grading System Classification	88,218	93,436
Total for Portfolio | Loans Receivable
Loan Portfolio Internal Grading System Classification	$ 3,968,235	$ 3,800,915