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Regulatory Matters - Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations (Details) - USD ($) $ in Thousands | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | ---
Total capital Member | Great Southern Bancorp, Inc. Member |  |
Actual Capital Amount | $ 745,641 | $ 800,388
Actual Capital Ratio | 16.30% | 17.20%
Capital Required for Capital Adequacy | $ 365,120 | $ 373,132
Capital Required for Capital Adequacy to Risk Weighted Assets | 8.0 | 8.0
Total capital Member | Great Southern Bank Member |  |
Actual Capital Amount | $ 701,215 | $ 694,047
Actual Capital Ratio | 15.40% | 14.90%
Capital Required for Capital Adequacy | $ 365,048 | $ 373,058
Capital Required for Capital Adequacy to Risk Weighted Assets | 8.0 | 8.0
Capital Required to be Well Capitalized | $ 456,310 | $ 466,322
Capital Required to be Well Capitalized to Risk Weighted Assets | 10.0 | 10.0
Tier I capital Member | Great Southern Bancorp, Inc. Member |  |
Actual Capital Amount | $ 613,544 | $ 594,645
Actual Capital Ratio | 13.40% | 12.70%
Capital Required for Capital Adequacy | $ 273,840 | $ 279,849
Capital Required for Capital Adequacy to Risk Weighted Assets | 6.0 | 6.0
Tier I capital Member | Great Southern Bank Member |  |
Actual Capital Amount | $ 644,134 | $ 638,304
Actual Capital Ratio | 14.10% | 13.70%
Capital Required for Capital Adequacy | $ 273,786 | $ 279,793
Capital Required for Capital Adequacy to Risk Weighted Assets | 6.0 | 6.0
Capital Required to be Well Capitalized | $ 365,048 | $ 373,058
Capital Required to be Well Capitalized to Risk Weighted Assets | 8.0 | 8.0
Tier I leverage capital Member | Great Southern Bancorp, Inc. Member |  |
Actual Capital Amount | $ 613,544 | $ 594,645
Actual Capital Ratio | 11.30% | 10.90%
Capital Required for Capital Adequacy | $ 217,264 | $ 217,223
Capital Required for Capital Adequacy to Risk Weighted Assets | 4.0 | 4.0
Tier I leverage capital Member | Great Southern Bank Member |  |
Actual Capital Amount | $ 644,134 | $ 638,304
Actual Capital Ratio | 11.90% | 11.80%
Capital Required for Capital Adequacy | $ 217,209 | $ 217,170
Capital Required for Capital Adequacy to Risk Weighted Assets | 4.0 | 4.0
Capital Required to be Well Capitalized | $ 271,511 | $ 271,463
Capital Required to be Well Capitalized to Risk Weighted Assets | 5.0 | 5.0
Common equity Tier I capital Member | Great Southern Bancorp, Inc. Member |  |
Actual Capital Amount | $ 588,544 | $ 569,645
Actual Capital Ratio | 12.90% | 12.20%
Capital Required for Capital Adequacy | $ 205,380 | $ 209,887
Capital Required for Capital Adequacy to Risk Weighted Assets | 4.5 | 4.5
Common equity Tier I capital Member | Great Southern Bank Member |  |
Actual Capital Amount | $ 644,134 | $ 638,304
Actual Capital Ratio | 14.10% | 13.70%
Capital Required for Capital Adequacy | $ 205,340 | $ 209,845
Capital Required for Capital Adequacy to Risk Weighted Assets | 4.5 | 4.5
Capital Required to be Well Capitalized | $ 296,602 | $ 303,109
Capital Required to be Well Capitalized to Risk Weighted Assets | 6.5 | 6.5

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