v3.25.2
Document and Entity Information - shares
6 Months Ended
Jun. 30, 2025
Jul. 31, 2025
Cover [Abstract]    
Entity Registrant Name Primerica, Inc.  
Entity Central Index Key 0001475922  
Current Fiscal Year End Date --12-31  
Entity Filer Category Large Accelerated Filer  
Document Type 10-Q  
Document Period End Date Jun. 30, 2025  
Document Fiscal Year Focus 2025  
Document Fiscal Period Focus Q2  
Trading Symbol PRI  
Amendment Flag false  
Entity Common Stock, Shares Outstanding   32,391,333
Entity Small Business false  
Entity Emerging Growth Company false  
Entity Shell Company false  
Entity File Number 001-34680  
Entity Tax Identification Number 27-1204330  
Entity Current Reporting Status Yes  
Entity Address, Address Line One 1 Primerica Parkway  
Entity Address, City or Town Duluth  
Entity Address, State or Province GA  
Entity Address, Postal Zip Code 30099  
City Area Code 770  
Local Phone Number 381-1000  
Title of 12(b) Security Common Stock  
Security Exchange Name NYSE  
Entity Interactive Data Current Yes  
Document Quarterly Report true  
Document Transition Report false  
Entity Incorporation, State or Country Code DE