XML 12 R1.htm IDEA: XBRL DOCUMENT v3.25.3
Document and Entity Information - shares
 9 Months Ended
Sep. 30, 2025
Oct. 22, 2025
Document And Entity Information [Abstract]    
Document Transition Report false  
Document Quarterly Report true  
Entity Incorporation, State or Country Code DE  
Entity Tax Identification Number 75-2969997  
Entity Address, Address Line One 200 CRESCENT COURT, SUITE 1200  
Entity Address, State or Province TX  
Title of 12(b) Security Common stock, par value $0.01 per share  
Entity Registrant Name WESTWOOD HOLDINGS GROUP, INC.  
City Area Code 214  
Local Phone Number 756-6900  
Entity Central Index Key 0001165002  
Document Type 10-Q  
Entity File Number 1-31234  
Document Fiscal Year Focus 2025  
Document Fiscal Period Focus Q3  
Amendment Flag false  
Entity Current Reporting Status Yes  
Entity Interactive Data Current Yes  
Entity Shell Company false  
Current Fiscal Year End Date --12-31  
Entity Common Stock, Shares Outstanding   9,408,130
Entity Emerging Growth Company false  
Trading Symbol WHG  
Security Exchange Name NYSE  
Entity Address, Postal Zip Code 75201  
Entity Small Business true  
Entity Filer Category Non-accelerated Filer  
Entity Address, City or Town DALLAS,  
Document Period End Date Sep. 30, 2025