Employee Benefit and Deferred Compensation Plans - Additional Information (Details)	12 Months Ended
	Dec. 31, 2024 USD ($) point plan shares	Dec. 31, 2023 USD ($) shares	Dec. 31, 2022 USD ($) shares	Dec. 31, 2007 officer	Dec. 31, 2021 shares
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Accumulated benefit obligation	$ 18,685,000	$ 20,195,000
Retiring age limit, minimum	55 years
Retiring age limit, maximum	65 years
Eligible employee from service (in years)	15 years
Number of points for eligibility (points) | point	70
Minimum eligible age for Medicare coverage	65 years
Health care cost trend rate (percent)	7.50%
Pension plan assets managed by Park Place Capital (percent)	13.00%
Redemption notice	60 days
Employee deferrals (percent)	4.00%
Hours of service credited to the employees during the year	1000 hours
Profit-sharing contribution	$ 0
Employee deferrals amounts	$ 7,290,000	6,757,000	$ 7,045,000
Number of conventional deferred compensation plans | plan	2
Company's deferred compensation plan expense	$ 3,269,000	3,265,000	1,486,000
Number of officers provided for | officer				4
Expiration period subsequent to retirement				15 years
Supplemental executive retirement liabilities totaled	3,143,000	3,345,000
Incentive compensation plan expense	$ 8,659,000	$ 10,303,000	$ 9,545,000
Option expiration period	10 years
Granted (shares) | shares	0	0	0
Options outstanding (shares) | shares					0
Common shares reserved for issuance under employee benefit plans (shares) | shares	2,418,071
401(k) Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Common shares reserved for issuance under employee benefit plans (shares) | shares	955,493
Deferred Stock Unit Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Common shares reserved for issuance under employee benefit plans (shares) | shares	124,250
2020 Long-Term Incentive Compensation Plan
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Common shares reserved for issuance under employee benefit plans (shares) | shares	1,338,328
Performance- Based Restricted Stock
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Compensation expense	$ 13,562,000	$ 13,458,000	$ 11,244,000
Restricted Stock
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Unrecognized stock-based compensation expense	$ 13,322,000
Weighted average period over which unrecognized expense is expected to be recognized (in years)	1 year 8 months 4 days
Growth Investment
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Equity income strategy (percent)	63.00%
Growth Investment | Common Collective Trust
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Pension plan assets, investment in collective trust, percentage	87.00%
Growth Investment | Real Estate
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Equity income strategy (percent)	6.00%
Growth Investment | Interest rate contracts
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Equity income strategy (percent)	37.00%
Pension Benefits Renasant
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Company contribution to pension benefit plan	$ 0	0
Accumulated benefit obligation	18,685,000	20,195,000	21,230,000
Other Benefits
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Company contribution to pension benefit plan	0	41,000
Accumulated benefit obligation	448,000	$ 512,000	$ 551,000
Expected company contributions	$ 86,000