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Cover - shares
 9 Months Ended
Sep. 30, 2025
Nov. 04, 2025
Cover [Abstract]    
Document Type 10-Q  
Document Quarterly Report true  
Document Period End Date Sep. 30, 2025  
Document Transition Report false  
Entity File Number 001-41093  
Entity Registrant Name HOME BANCSHARES, INC.  
Entity Incorporation, State or Country Code AR  
Entity Tax Identification Number 71-0682831  
Entity Address, Address Line One 719 Harkrider, Suite 100  
Entity Address, City or Town Conway  
Entity Address, State or Province AR  
Entity Address, Postal Zip Code 72032  
City Area Code 501  
Local Phone Number 339-2929  
Title of 12(b) Security Common Stock, par value $0.01 per share  
Trading Symbol HOMB  
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   196,542,380
Entity Central Index Key 0001331520  
Current Fiscal Year End Date --12-31  
Document Fiscal Year Focus 2025  
Document Fiscal Period Focus Q3  
Amendment Flag false