v3.25.1
Document and Entity Information Document
May 14, 2025
Cover [Abstract]  
Entity Central Index Key 0000705432
Document Type 8-K
Document Period End Date May 14, 2025
Entity Registrant Name Southside Bancshares, Inc.
Entity Emerging Growth Company false
Entity Incorporation, State or Country Code TX
Entity File Number 000-12247
Entity Tax Identification Number 75-1848732
Entity Address, Address Line One 1201 S. Beckham Avenue,
Entity Address, City or Town Tyler,
Entity Address, State or Province TX
Entity Address, Postal Zip Code 75701
City Area Code 903
Local Phone Number 531-7111
Written Communications false
Soliciting Material false
Pre-commencement Tender Offer false
Pre-commencement Issuer Tender Offer false
Title of 12(b) Security Common stock, $1.25 par value
Trading Symbol SBSI
Security Exchange Name NYSE
Amendment Flag false