Cover - shares	6 Months Ended
	Jun. 30, 2024	Jul. 31, 2024
Cover [Abstract]
Document Type	10-Q
Document Quarterly Report	true
Document Period End Date	Jun. 30, 2024
Document Transition Report	false
Entity File Number	001-13253
Entity Registrant Name	RENASANT CORP
Entity Incorporation, State or Country Code	MS
Entity Tax Identification Number	64-0676974
Entity Address, Address Line One	209 Troy Street,
Entity Address, City or Town	Tupelo,
Entity Address, State or Province	MS
Entity Address, Postal Zip Code	38804-4827
City Area Code	662
Local Phone Number	680-1001
Title of 12(b) Security	Common stock, $5.00 par value per share
Trading Symbol	RNST
Security Exchange Name	NYSE
Entity Current Reporting Status	Yes
Entity Interactive Data Current	Yes
Entity Filer Category	Large Accelerated Filer
Entity Small Business	false
Entity Emerging Growth Company	false
Entity Shell Company	false
Entity Common Stock, Shares Outstanding		63,557,383
Entity Central Index Key	0000715072
Amendment Flag	false
Document Fiscal Year Focus	2024
Document Fiscal Period Focus	Q2
Current Fiscal Year End Date	--12-31