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Regulatory Matters - Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
--- | --- | ---
Total capital | Great Southern Bancorp, Inc. |  |
Regulatory Matters |  |
Actual Capital Amount | $ 746,287 | $ 745,641
Actual Capital Ratio | 13.50% | 16.30%
Capital Required for Capital Adequacy | $ 440,767 | $ 365,120
Capital Required for Capital Adequacy to Risk Weighted Assets | 0.080 | 0.080
Total capital | Great Southern Bank |  |
Regulatory Matters |  |
Actual Capital Amount | $ 721,616 | $ 701,215
Actual Capital Ratio | 13.10% | 15.40%
Capital Required for Capital Adequacy | $ 440,683 | $ 365,048
Capital Required for Capital Adequacy to Risk Weighted Assets | 0.080 | 0.080
Capital Required to be Well Capitalized | $ 550,854 | $ 456,310
Capital Required to be Well Capitalized to Risk Weighted Assets | 0.100 | 0.100
Tier I capital | Great Southern Bancorp, Inc. |  |
Regulatory Matters |  |
Actual Capital Amount | $ 607,807 | $ 613,544
Actual Capital Ratio | 11.00% | 13.40%
Capital Required for Capital Adequacy | $ 330,575 | $ 273,840
Capital Required for Capital Adequacy to Risk Weighted Assets | 0.060 | 0.060
Tier I capital | Great Southern Bank |  |
Regulatory Matters |  |
Actual Capital Amount | $ 658,136 | $ 644,134
Actual Capital Ratio | 11.90% | 14.10%
Capital Required for Capital Adequacy | $ 330,512 | $ 273,786
Capital Required for Capital Adequacy to Risk Weighted Assets | 0.060 | 0.060
Capital Required to be Well Capitalized | $ 440,683 | $ 365,048
Capital Required to be Well Capitalized to Risk Weighted Assets | 0.080 | 0.080
Tier I leverage capital | Great Southern Bancorp, Inc. |  |
Regulatory Matters |  |
Actual Capital Amount | $ 607,807 | $ 613,544
Actual Capital Ratio | 10.60% | 11.30%
Capital Required for Capital Adequacy | $ 228,673 | $ 217,264
Capital Required for Capital Adequacy to Risk Weighted Assets | 0.040 | 0.040
Tier I leverage capital | Great Southern Bank |  |
Regulatory Matters |  |
Actual Capital Amount | $ 658,136 | $ 644,134
Actual Capital Ratio | 11.50% | 11.90%
Capital Required for Capital Adequacy | $ 228,511 | $ 217,209
Capital Required for Capital Adequacy to Risk Weighted Assets | 0.040 | 0.040
Capital Required to be Well Capitalized | $ 285,638 | $ 271,511
Capital Required to be Well Capitalized to Risk Weighted Assets | 0.050 | 0.050
Common equity Tier I capital | Great Southern Bancorp, Inc. |  |
Regulatory Matters |  |
Actual Capital Amount | $ 582,807 | $ 588,544
Actual Capital Ratio | 10.60% | 12.90%
Capital Required for Capital Adequacy | $ 247,932 | $ 205,380
Capital Required for Capital Adequacy to Risk Weighted Assets | 0.045 | 0.045
Common equity Tier I capital | Great Southern Bank |  |
Regulatory Matters |  |
Actual Capital Amount | $ 658,136 | $ 644,134
Actual Capital Ratio | 11.90% | 14.10%
Capital Required for Capital Adequacy | $ 247,884 | $ 205,340
Capital Required for Capital Adequacy to Risk Weighted Assets | 0.045 | 0.045
Capital Required to be Well Capitalized | $ 358,055 | $ 296,602
Capital Required to be Well Capitalized to Risk Weighted Assets | 0.065 | 0.065

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