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Regulatory Capital - Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations (Details) $ in Thousands | Dec. 31, 2023 USD ($) | Dec. 31, 2022 USD ($)
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Phantom section (for regulatory ratios): |  |
Capital ($) | $ 894,259 | $ 801,966
Capital to RWA (%) | 0.1484 | 0.152
Capital Required for Capital Adequacy ($) | $ 632,724 | $ 554,164
Capital Required for Capital Adequacy to RWA (%) | 0.105 | 0.105
Tier One Risk Based Capital ($) | $ 724,186 | $ 654,453
Tier One Risk Based Capital to RWA (%) | 0.1202 | 0.124
Tier One Risk Based Capital Required for Capital Adequacy ($) | $ 512,205 | $ 448,609
Tier One Risk Based Capital Required for Capital Adequacy to RWA (%) | 0.085 | 0.085
Common Equity Tier One Risk Based Capital ($) | $ 700,128 | $ 635,089
Common Equity Tier One Risk Based Capital To RWA (%) | 0.1162 | 0.1203
Common Equity Tier One Risk Based Capital Required For Capital Adequacy ($) | $ 421,816 | $ 369,442
Common Equity Tier One Risk Based Capital Required for Capital Adequacy to RWA (%) | 0.07 | 0.07
Tier One Leverage Capital to Average Assets | $ 724,186 | $ 654,453
Tier One Leverage Capital to Average Assets (%) | 0.0933 | 0.0968
Tier One Leverage Capital Required for Capital Adequacy ($) | $ 310,587 | $ 268,875
Tier One Leverage Capital Required for Capital Adequacy to Average Assets (%) | 0.04 | 0.04
First Mid Bank |  |
Phantom section (for regulatory ratios): |  |
Capital ($) | $ 854,235 | $ 745,624
Capital to RWA (%) | 0.1422 | 0.1418
Capital Required for Capital Adequacy ($) | $ 630,581 | $ 552,161
Capital Required for Capital Adequacy to RWA (%) | 0.105 | 0.105
Capital Required to be Well Capitalized ($) | $ 600,553 | $ 525,868
Capital Required to be Well Capitalized to RWA (%) | 0.10 | 0.10
Tier One Risk Based Capital ($) | $ 790,917 | $ 692,664
Tier One Risk Based Capital to RWA (%) | 0.1317 | 0.1317
Tier One Risk Based Capital Required for Capital Adequacy with Capital Buffer ($) | $ 510,470 | $ 446,987
Tier One Risk Based Capital Required for Capital Adequacy with Capital Buffer to RWA (%) | 0.085 | 0.085
Tier One Risk Based Capital Required to be Well Capitalized ($) | $ 480,443 | $ 420,694
Tier One Risk Based Capital Required to be Well Capitalized to RWA (%) | 0.08 | 0.08
Common Equity Tier One Risk Based Capital ($) | $ 790,917 | $ 692,664
Common Equity Tier One Risk Based Capital To RWA (%) | 0.1317 | 0.1317
Common Equity Tier One Risk Based Capital Required For Capital Adequacy ($) | $ 420,387 | $ 368,107
Common Equity Tier One Risk Based Capital Required for Capital Adequacy to RWA (%) | 0.07 | 0.07
Common Equity Tier One Risk Based Capital Required to Be Well Capitalized ($) | $ 390,360 | $ 341,814
Common Equity Tier One Risk Based Capital Required To Be Well Capitalized to RiWA (%) | 0.065 | 0.065
Tier One Leverage Capital to Average Assets | $ 790,917 | $ 692,664
Tier One Leverage Capital to Average Assets (%) | 0.1023 | 0.1022
Tier One Leverage Capital Required for Capital Adequacy ($) | $ 309,151 | $ 270,990
Tier One Leverage Capital Required for Capital Adequacy to Average Assets (%) | 0.04 | 0.04
Tier One Leverage Capital Required to be Well Capitalized ($) | $ 386,439 | $ 338,738
Tier One Leverage Capital Required to be Well Capitalized to Average Assets (%) | 0.05 | 0.05

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