v3.26.1
Employee Benefit Plan, Schedule, Asset Held for Investment (Details) - 401 (k) Plan - USD ($)
$ in Thousands
12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
EBP, Schedule of Asset Held for Investment [Line Items]    
Entity Tax Identification Number 64-0220550  
Notes receivable from participants $ 5,316 $ 4,185
Total 386,923  
Investment, Identifier [Axis]: Equity and fixed income mutual funds | American Century | Small Cap Growth R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 3,703  
Investment, Identifier [Axis]: Equity and fixed income mutual funds | Baird | Core Plus Bond Institutional    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 4,338  
Investment, Identifier [Axis]: Equity and fixed income mutual funds | Brandywine GLOBAL | High Yield IS    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 1,328  
Investment, Identifier [Axis]: Equity and fixed income mutual funds | Buffalo | International Institutional    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 1,008  
Investment, Identifier [Axis]: Equity and fixed income mutual funds | Dodge & Cox | Stock Fund Class I    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 2,942  
Investment, Identifier [Axis]: Equity and fixed income mutual funds | Federated | Government Obligation Premier    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 19,242  
Investment, Identifier [Axis]: Equity and fixed income mutual funds | Federated | Hermes Intl Small-Mid Co FD    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 3,584  
Investment, Identifier [Axis]: Equity and fixed income mutual funds | Federated | MDT Large Cap Growth R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 14,078  
Investment, Identifier [Axis]: Equity and fixed income mutual funds | Federated | Total Return Bond R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 3,095  
Investment, Identifier [Axis]: Equity and fixed income mutual funds | JP Morgan | Core Bond R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 3,777  
Investment, Identifier [Axis]: Equity and fixed income mutual funds | JP Morgan | Growth Advantage R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 23,543  
Investment, Identifier [Axis]: Equity and fixed income mutual funds | JP Morgan | Hedged Equity R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 10,171  
Investment, Identifier [Axis]: Equity and fixed income mutual funds | JP Morgan | Undiscovered MGRS Behavioral Value L    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 3,185  
Investment, Identifier [Axis]: Equity and fixed income mutual funds | MFS | Mid Cap Value R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 1,944  
Investment, Identifier [Axis]: Equity and fixed income mutual funds | Matthews Asia | Small Companies Institutional    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 926  
Investment, Identifier [Axis]: Equity and fixed income mutual funds | Putnam | Large Cap Value R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 4,190  
Investment, Identifier [Axis]: Equity and fixed income mutual funds | T. Rowe Price | Retirement 2015    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 1,473  
Investment, Identifier [Axis]: Equity and fixed income mutual funds | T. Rowe Price | Retirement 2020    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 3,768  
Investment, Identifier [Axis]: Equity and fixed income mutual funds | T. Rowe Price | Retirement 2025    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 13,642  
Investment, Identifier [Axis]: Equity and fixed income mutual funds | T. Rowe Price | Retirement 2030    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 21,885  
Investment, Identifier [Axis]: Equity and fixed income mutual funds | T. Rowe Price | Retirement 2035    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 16,644  
Investment, Identifier [Axis]: Equity and fixed income mutual funds | T. Rowe Price | Retirement 2040    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 16,305  
Investment, Identifier [Axis]: Equity and fixed income mutual funds | T. Rowe Price | Retirement 2045    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 13,899  
Investment, Identifier [Axis]: Equity and fixed income mutual funds | T. Rowe Price | Retirement 2050    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 9,737  
Investment, Identifier [Axis]: Equity and fixed income mutual funds | T. Rowe Price | Retirement 2055    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 8,864  
Investment, Identifier [Axis]: Equity and fixed income mutual funds | T. Rowe Price | Retirement 2060    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 4,780  
Investment, Identifier [Axis]: Equity and fixed income mutual funds | T. Rowe Price | Retirement 2065    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 3,001  
Investment, Identifier [Axis]: Equity and fixed income mutual funds | Value Line | Mid Cap Focused Institutional    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 5,018  
Investment, Identifier [Axis]: Equity and fixed income mutual funds | Vanguard | Developed Markets Index Admiral    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 5,045  
Investment, Identifier [Axis]: Equity and fixed income mutual funds | Vanguard | Large Cap Index Admiral    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 19,484  
Investment, Identifier [Axis]: Equity and fixed income mutual funds | Vanguard | Mid Cap Index Admiral    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 6,066  
Investment, Identifier [Axis]: Equity and fixed income mutual funds | Vanguard | Small Cap Index Fund Admiral    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 7,406  
Investment, Identifier [Axis]: Equity and fixed income mutual funds | Vanguard | Total Intl Stock Index Admiral    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 4,416  
Investment, Identifier [Axis]: Equity and fixed income mutual funds | Vanguard | Total Stock MRK Index Admiral    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 24,639  
Investment, Identifier [Axis]: Renasant Bank Aggressive Growth Account | American Century | Small Cap Growth R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 696  
Investment, Identifier [Axis]: Renasant Bank Aggressive Growth Account | Baird | Core Plus Bond Institutional    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 557  
Investment, Identifier [Axis]: Renasant Bank Aggressive Growth Account | Buffalo | International Fund Institutional    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 500  
Investment, Identifier [Axis]: Renasant Bank Aggressive Growth Account | Cohen & Steers | Real Estate Securities Z    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 417  
Investment, Identifier [Axis]: Renasant Bank Aggressive Growth Account | Dodge & Cox | Stock Fund Class I    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 758  
Investment, Identifier [Axis]: Renasant Bank Aggressive Growth Account | Federated | Government Obligation Premier    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 419  
Investment, Identifier [Axis]: Renasant Bank Aggressive Growth Account | Federated | Hermes International Small-Mid Company    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 556  
Investment, Identifier [Axis]: Renasant Bank Aggressive Growth Account | Federated | Hermes Total Return Bond R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 559  
Investment, Identifier [Axis]: Renasant Bank Aggressive Growth Account | Federated | MDT Large Cap Growth R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 968  
Investment, Identifier [Axis]: Renasant Bank Aggressive Growth Account | First Eagle | Global I    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 278  
Investment, Identifier [Axis]: Renasant Bank Aggressive Growth Account | Hartford | International Value R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 390  
Investment, Identifier [Axis]: Renasant Bank Aggressive Growth Account | JP Morgan | Core Bond R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 557  
Investment, Identifier [Axis]: Renasant Bank Aggressive Growth Account | JP Morgan | Global Bond Opportunities R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 557  
Investment, Identifier [Axis]: Renasant Bank Aggressive Growth Account | JP Morgan | Growth Advantage R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 969  
Investment, Identifier [Axis]: Renasant Bank Aggressive Growth Account | JP Morgan | Hedged Equity R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 417  
Investment, Identifier [Axis]: Renasant Bank Aggressive Growth Account | JP Morgan | Undiscovered Mgrs Behavioral    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 695  
Investment, Identifier [Axis]: Renasant Bank Aggressive Growth Account | MFS | Mid Cap Value R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 278  
Investment, Identifier [Axis]: Renasant Bank Aggressive Growth Account | Matthews Asia | Emerging Markets Small Co    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 976  
Investment, Identifier [Axis]: Renasant Bank Aggressive Growth Account | Pimco | Income International    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 420  
Investment, Identifier [Axis]: Renasant Bank Aggressive Growth Account | Putnam | Large Cap Value R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 757  
Investment, Identifier [Axis]: Renasant Bank Aggressive Growth Account | Schwab | Treasury Inflation Report    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 139  
Investment, Identifier [Axis]: Renasant Bank Aggressive Growth Account | Value Line | Mid Cap Focused Fund Institutional    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 974  
Investment, Identifier [Axis]: Renasant Bank Aggressive Growth Account | Vanguard | Developed Markets Index Admiral Class    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 222  
Investment, Identifier [Axis]: Renasant Bank Aggressive Growth Account | Vanguard | Large Cap Index Admiral Class    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 863  
Investment, Identifier [Axis]: Renasant Bank Conservative Growth Account | American Century | Small Cap Growth R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 769  
Investment, Identifier [Axis]: Renasant Bank Conservative Growth Account | Baird | Core Plus Bond Institutional    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 1,846  
Investment, Identifier [Axis]: Renasant Bank Conservative Growth Account | Brandywine GLOBAL | High Yield IS    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 193  
Investment, Identifier [Axis]: Renasant Bank Conservative Growth Account | Buffalo | International Fund Institutional    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 413  
Investment, Identifier [Axis]: Renasant Bank Conservative Growth Account | Cohen & Steers | Real Estate Securities Z    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 384  
Investment, Identifier [Axis]: Renasant Bank Conservative Growth Account | Dodge & Cox | Stock Fund Class I    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 606  
Investment, Identifier [Axis]: Renasant Bank Conservative Growth Account | Federated | Government Obligation Premier    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 1,157  
Investment, Identifier [Axis]: Renasant Bank Conservative Growth Account | Federated | Hermes International Small-Mid Company    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 384  
Investment, Identifier [Axis]: Renasant Bank Conservative Growth Account | Federated | Hermes Total Return Bond R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 1,853  
Investment, Identifier [Axis]: Renasant Bank Conservative Growth Account | Federated | Institutional High Yield Bond R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 702  
Investment, Identifier [Axis]: Renasant Bank Conservative Growth Account | First Eagle | Global I    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 192  
Investment, Identifier [Axis]: Renasant Bank Conservative Growth Account | Hartford | International Value R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 356  
Investment, Identifier [Axis]: Renasant Bank Conservative Growth Account | JP Morgan | Core Bond R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 1,846  
Investment, Identifier [Axis]: Renasant Bank Conservative Growth Account | JP Morgan | Global Bond Opportunities R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 1,538  
Investment, Identifier [Axis]: Renasant Bank Conservative Growth Account | JP Morgan | Growth Advantage R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 702  
Investment, Identifier [Axis]: Renasant Bank Conservative Growth Account | JP Morgan | Hedged Equity R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 384  
Investment, Identifier [Axis]: Renasant Bank Conservative Growth Account | JP Morgan | Undiscovered Mgrs Behavioral    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 769  
Investment, Identifier [Axis]: Renasant Bank Conservative Growth Account | MFS | Mid Cap Value R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 192  
Investment, Identifier [Axis]: Renasant Bank Conservative Growth Account | Matthews Asia | Emerging Markets Small Co    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 769  
Investment, Identifier [Axis]: Renasant Bank Conservative Growth Account | Pimco | Income International    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 1,391  
Investment, Identifier [Axis]: Renasant Bank Conservative Growth Account | Putnam | Large Cap Value R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 606  
Investment, Identifier [Axis]: Renasant Bank Conservative Growth Account | Schwab | Treasury Inflation Report    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 577  
Investment, Identifier [Axis]: Renasant Bank Conservative Growth Account | Value Line | Mid Cap Focused Fund Institutional    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 769  
Investment, Identifier [Axis]: Renasant Bank Conservative Growth Account | Vanguard | Developed Markets Index Admiral Class    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 192  
Investment, Identifier [Axis]: Renasant Bank Conservative Growth Account | Vanguard | Large Cap Index Admiral Class    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 654  
Investment, Identifier [Axis]: Renasant Bank Growth Account | American Century | Small Cap Growth R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 670  
Investment, Identifier [Axis]: Renasant Bank Growth Account | Baird | Core Plus Bond Institutional    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 786  
Investment, Identifier [Axis]: Renasant Bank Growth Account | Brandywine GLOBAL | High Yield IS    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 135  
Investment, Identifier [Axis]: Renasant Bank Growth Account | Buffalo | International Fund Institutional    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 431  
Investment, Identifier [Axis]: Renasant Bank Growth Account | Cohen & Steers | Real Estate Securities Z    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 402  
Investment, Identifier [Axis]: Renasant Bank Growth Account | Dodge & Cox | Stock Fund Class I    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 569  
Investment, Identifier [Axis]: Renasant Bank Growth Account | Federated | Government Obligation Premier    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 403  
Investment, Identifier [Axis]: Renasant Bank Growth Account | Federated | Hermes International Small-Mid Company    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 402  
Investment, Identifier [Axis]: Renasant Bank Growth Account | Federated | Hermes Total Return Bond R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 788  
Investment, Identifier [Axis]: Renasant Bank Growth Account | Federated | Institutional High Yield Bond R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 770  
Investment, Identifier [Axis]: Renasant Bank Growth Account | First Eagle | Global I    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 268  
Investment, Identifier [Axis]: Renasant Bank Growth Account | Hartford | International Value R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 319  
Investment, Identifier [Axis]: Renasant Bank Growth Account | JP Morgan | Core Bond R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 786  
Investment, Identifier [Axis]: Renasant Bank Growth Account | JP Morgan | Global Bond Opportunities R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 669  
Investment, Identifier [Axis]: Renasant Bank Growth Account | JP Morgan | Growth Advantage R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 770  
Investment, Identifier [Axis]: Renasant Bank Growth Account | JP Morgan | Hedged Equity R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 402  
Investment, Identifier [Axis]: Renasant Bank Growth Account | JP Morgan | Undiscovered Mgrs Behavioral    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 669  
Investment, Identifier [Axis]: Renasant Bank Growth Account | MFS | Mid Cap Value R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 268  
Investment, Identifier [Axis]: Renasant Bank Growth Account | Matthews Asia | Emerging Markets Small Co    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 804  
Investment, Identifier [Axis]: Renasant Bank Growth Account | Pimco | Income International    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 592  
Investment, Identifier [Axis]: Renasant Bank Growth Account | Putnam | Large Cap Value R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 569  
Investment, Identifier [Axis]: Renasant Bank Growth Account | Schwab | Treasury Inflation Report    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 268  
Investment, Identifier [Axis]: Renasant Bank Growth Account | Value Line | Mid Cap Focused Fund Institutional    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 803  
Investment, Identifier [Axis]: Renasant Bank Growth Account | Vanguard | Developed Markets Index Admiral Class    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 187  
Investment, Identifier [Axis]: Renasant Bank Growth Account | Vanguard | Large Cap Index Admiral Class    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 670  
Investment, Identifier [Axis]: Renasant Bank Income Account | American Century | Small Cap Growth R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 168  
Investment, Identifier [Axis]: Renasant Bank Income Account | Baird | Core Plus Bond Institutional    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 628  
Investment, Identifier [Axis]: Renasant Bank Income Account | Brandywine GLOBAL | High Yield IS    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 113  
Investment, Identifier [Axis]: Renasant Bank Income Account | Buffalo | International Fund Institutional    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 67  
Investment, Identifier [Axis]: Renasant Bank Income Account | Cohen & Steers | Real Estate Securities Z    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 112  
Investment, Identifier [Axis]: Renasant Bank Income Account | Dodge & Cox | Stock Fund Class I    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 157  
Investment, Identifier [Axis]: Renasant Bank Income Account | Federated | Government Obligation Premier    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 450  
Investment, Identifier [Axis]: Renasant Bank Income Account | Federated | Hermes International Small-Mid Company    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 56  
Investment, Identifier [Axis]: Renasant Bank Income Account | Federated | Hermes Total Return Bond R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 630  
Investment, Identifier [Axis]: Renasant Bank Income Account | Federated | Institutional High Yield Bond R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 157  
Investment, Identifier [Axis]: Renasant Bank Income Account | First Eagle | Global I    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 56  
Investment, Identifier [Axis]: Renasant Bank Income Account | Hartford | International Value R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 67  
Investment, Identifier [Axis]: Renasant Bank Income Account | JP Morgan | Core Bond R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 628  
Investment, Identifier [Axis]: Renasant Bank Income Account | JP Morgan | Global Bond Opportunities R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 504  
Investment, Identifier [Axis]: Renasant Bank Income Account | JP Morgan | Growth Advantage R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 157  
Investment, Identifier [Axis]: Renasant Bank Income Account | JP Morgan | Hedged Equity R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 112  
Investment, Identifier [Axis]: Renasant Bank Income Account | JP Morgan | Undiscovered Mgrs Behavioral    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 168  
Investment, Identifier [Axis]: Renasant Bank Income Account | MFS | Mid Cap Value R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 168  
Investment, Identifier [Axis]: Renasant Bank Income Account | Matthews Asia | Emerging Markets Small Co    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 168  
Investment, Identifier [Axis]: Renasant Bank Income Account | Pimco | Income International    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 473  
Investment, Identifier [Axis]: Renasant Bank Income Account | Putnam | Large Cap Value R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 157  
Investment, Identifier [Axis]: Renasant Bank Income Account | Schwab | Treasury Inflation Report    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 168  
Investment, Identifier [Axis]: Renasant Bank Income Account | Value Line | Mid Cap Focused Fund Institutional    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 56  
Investment, Identifier [Axis]: Renasant Bank Income Account | Vanguard | Developed Markets Index Admiral Class    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 34  
Investment, Identifier [Axis]: Renasant Bank Income Account | Vanguard | Large Cap Index Admiral Class    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 157  
Investment, Identifier [Axis]: Renasant Bank Moderate Growth Account | American Century | Small Cap Growth R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 736  
Investment, Identifier [Axis]: Renasant Bank Moderate Growth Account | Baird | Core Plus Bond Institutional    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 1,472  
Investment, Identifier [Axis]: Renasant Bank Moderate Growth Account | Brandywine GLOBAL | High Yield IS    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 185  
Investment, Identifier [Axis]: Renasant Bank Moderate Growth Account | Buffalo | International Fund Institutional    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 521  
Investment, Identifier [Axis]: Renasant Bank Moderate Growth Account | Cohen & Steers | Real Estate Securities Z    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 552  
Investment, Identifier [Axis]: Renasant Bank Moderate Growth Account | Dodge & Cox | Stock Fund Class I    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 635  
Investment, Identifier [Axis]: Renasant Bank Moderate Growth Account | Federated | Government Obligation Premier    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 738  
Investment, Identifier [Axis]: Renasant Bank Moderate Growth Account | Federated | Hermes International Small-Mid Company    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 552  
Investment, Identifier [Axis]: Renasant Bank Moderate Growth Account | Federated | Hermes Total Return Bond R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 1,478  
Investment, Identifier [Axis]: Renasant Bank Moderate Growth Account | Federated | Institutional High Yield Bond R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 911  
Investment, Identifier [Axis]: Renasant Bank Moderate Growth Account | First Eagle | Global I    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 368  
Investment, Identifier [Axis]: Renasant Bank Moderate Growth Account | Hartford | International Value R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 362  
Investment, Identifier [Axis]: Renasant Bank Moderate Growth Account | JP Morgan | Core Bond R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 1,472  
Investment, Identifier [Axis]: Renasant Bank Moderate Growth Account | JP Morgan | Global Bond Opportunities R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 1,104  
Investment, Identifier [Axis]: Renasant Bank Moderate Growth Account | JP Morgan | Growth Advantage R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 910  
Investment, Identifier [Axis]: Renasant Bank Moderate Growth Account | JP Morgan | Hedged Equity R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 552  
Investment, Identifier [Axis]: Renasant Bank Moderate Growth Account | JP Morgan | Undiscovered Mgrs Behavioral    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 736  
Investment, Identifier [Axis]: Renasant Bank Moderate Growth Account | MFS | Mid Cap Value R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 184  
Investment, Identifier [Axis]: Renasant Bank Moderate Growth Account | Matthews Asia | Emerging Markets Small Co    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 920  
Investment, Identifier [Axis]: Renasant Bank Moderate Growth Account | Pimco | Income International    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 1,109  
Investment, Identifier [Axis]: Renasant Bank Moderate Growth Account | Putnam | Large Cap Value R6    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 635  
Investment, Identifier [Axis]: Renasant Bank Moderate Growth Account | Schwab | Treasury Inflation Report    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 368  
Investment, Identifier [Axis]: Renasant Bank Moderate Growth Account | Value Line | Mid Cap Focused Fund Institutional    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 920  
Investment, Identifier [Axis]: Renasant Bank Moderate Growth Account | Vanguard | Developed Markets Index Admiral Class    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 221  
Investment, Identifier [Axis]: Renasant Bank Moderate Growth Account | Vanguard | Large Cap Index Admiral Class    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 773  
Mutual funds    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 287,126  
Separately managed accounts    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 70,591  
Renasant Bank Income Account    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 5,611  
Renasant Bank Conservative Growth Account    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 19,244  
Renasant Bank Moderate Growth Account    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 18,414  
Renasant Bank Growth Account    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 13,400  
Renasant Bank Aggressive Growth Account    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments 13,922  
Renasant Corporation common stock    
EBP, Schedule of Asset Held for Investment [Line Items]    
Investments $ 23,890  
Minimum    
EBP, Schedule of Asset Held for Investment [Line Items]    
Participant loan, interest rate 4.25%  
Maximum    
EBP, Schedule of Asset Held for Investment [Line Items]    
Participant loan, interest rate 9.50%