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Regulatory Matters - Capital and Risk-Based Capital and Leverage Ratios (Details) $ in Thousands | Jun. 30, 2023 USD ($) | Dec. 31, 2022 USD ($)
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Renasant Corporation |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |
Tier 1 Capital to Average Assets (Leverage) - Amount | $ 1,524,545 | $ 1,481,197
Tier 1 Capital to Average Assets (Leverage) - Ratio | 0.0922 | 0.0936
Common Equity Tier 1 Capital to Risk-Weighted Assets - Amount | $ 1,415,626 | $ 1,372,747
Common Equity Tier 1 Capital to Risk-Weighted Assets - Ratio | 10.30% | 10.21%
Tier 1 Capital to Risk-Weighted Assets - Amount | $ 1,524,545 | $ 1,481,197
Tier 1 Capital to Risk-Weighted Assets - Ratio | 0.1109 | 0.1101
Total Capital to Risk-Weighted Assets - Amount | $ 2,028,793 | $ 1,968,001
Total Capital to Risk-Weighted Assets - Ratio | 0.1476 | 0.1463
Renasant Bank |  |
Compliance with Regulatory Capital Requirements under Banking Regulations [Line Items] |  |
Tier 1 Capital to Average Assets (Leverage) - Amount | $ 1,668,033 | $ 1,630,389
Tier 1 Capital to Average Assets (Leverage) - Ratio | 0.1009 | 0.1030
Common Equity Tier 1 Capital to Risk-Weighted Assets - Amount | $ 1,668,033 | $ 1,630,389
Common Equity Tier 1 Capital to Risk-Weighted Assets - Ratio | 12.06% | 12.10%
Tier 1 Capital to Risk-Weighted Assets - Amount | $ 1,668,033 | $ 1,630,389
Tier 1 Capital to Risk-Weighted Assets - Ratio | 0.1206 | 0.1210
Total Capital to Risk-Weighted Assets - Amount | $ 1,835,954 | $ 1,781,312
Total Capital to Risk-Weighted Assets - Ratio | 0.1327 | 0.1322

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