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Regulatory Capital - Schedule of Compliance with Regulatory Capital Requirements under Banking Regulations (Details) $ in Thousands | Dec. 31, 2024 USD ($) | Dec. 31, 2023 USD ($)
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Phantom section (for regulatory ratios): |  |
Capital ($) | $ 935,189 | $ 894,259
Capital to RWA (%) | 0.1537 | 0.1484
Capital Required for Capital Adequacy ($) | $ 639,015 | $ 632,724
Capital Required for Capital Adequacy to RWA (%) | 0.105 | 0.105
Tier One Risk Based Capital ($) | $ 780,096 | $ 724,186
Tier One Risk Based Capital to RWA (%) | 0.1282 | 0.1202
Tier One Risk Based Capital Required for Capital Adequacy ($) | $ 517,298 | $ 512,205
Tier One Risk Based Capital Required for Capital Adequacy to RWA (%) | 0.085 | 0.085
Common Equity Tier One Risk Based Capital ($) | $ 755,816 | $ 700,128
Common Equity Tier One Risk Based Capital To RWA (%) | 0.1242 | 0.1162
Common Equity Tier One Risk Based Capital Required For Capital Adequacy ($) | $ 426,010 | $ 421,816
Common Equity Tier One Risk Based Capital Required for Capital Adequacy to RWA (%) | 0.07 | 0.07
Tier One Leverage Capital to Average Assets | $ 780,096 | $ 724,186
Tier One Leverage Capital to Average Assets (%) | 0.1033 | 0.0933
Tier One Leverage Capital Required for Capital Adequacy ($) | $ 301,976 | $ 310,587
Tier One Leverage Capital Required for Capital Adequacy to Average Assets (%) | 0.04 | 0.04
First Mid Bank |  |
Phantom section (for regulatory ratios): |  |
Capital ($) | $ 880,621 | $ 854,235
Capital to RWA (%) | 0.1451 | 0.1422
Capital Required for Capital Adequacy ($) | $ 637,089 | $ 630,581
Capital Required for Capital Adequacy to RWA (%) | 0.105 | 0.105
Capital Required to be Well Capitalized ($) | $ 606,752 | $ 600,553
Capital Required to be Well Capitalized to RWA (%) | 0.10 | 0.10
Tier One Risk Based Capital ($) | $ 813,000 | $ 790,917
Tier One Risk Based Capital to RWA (%) | 0.134 | 0.1317
Tier One Risk Based Capital Required for Capital Adequacy with Capital Buffer ($) | $ 515,739 | $ 510,470
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 ($) | $ 485,401 | $ 480,443
Tier One Risk Based Capital Required to be Well Capitalized to RWA (%) | 0.08 | 0.08
Common Equity Tier One Risk Based Capital ($) | $ 813,000 | $ 790,917
Common Equity Tier One Risk Based Capital To RWA (%) | 0.134 | 0.1317
Common Equity Tier One Risk Based Capital Required For Capital Adequacy ($) | $ 424,726 | $ 420,387
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 ($) | $ 394,389 | $ 390,360
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 | $ 813,000 | $ 790,917
Tier One Leverage Capital to Average Assets (%) | 0.1082 | 0.1023
Tier One Leverage Capital Required for Capital Adequacy ($) | $ 300,596 | $ 309,151
Tier One Leverage Capital Required for Capital Adequacy to Average Assets (%) | 0.04 | 0.04
Tier One Leverage Capital Required to be Well Capitalized ($) | $ 375,745 | $ 386,439
Tier One Leverage Capital Required to be Well Capitalized to Average Assets (%) | 0.05 | 0.05

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