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Schedule I - Summary of Investments - Other Than Investments in Related Parties
 12 Months Ended
Dec. 31, 2023
SEC Schedule, 12-15, Insurance Companies, Summary of Investments, Other than Investments in Related Parties [Abstract]  
Schedule I - Summary of Investments- Other than Investments in Related Parties
SCHEDULE I
 
SELECTIVE INSURANCE GROUP, INC. AND CONSOLIDATED SUBSIDIARIES
SUMMARY OF INVESTMENTS - OTHER THAN INVESTMENTS IN RELATED PARTIES
December 31, 2023
 
Types of investment
($ in thousands)Amortized Cost or CostFair ValueCarrying Amount
Fixed income securities:   
Held-to-maturity:   
All other corporate securities$22,700 21,923 22,700 
Total fixed income securities, held-to-maturity22,700 21,923 22,700 
Available-for-sale:   
U.S. government and government agencies223,157 205,035 205,035 
Foreign government 11,140 9,803 9,803 
Obligations of states and political subdivisions612,938 585,965 585,965 
Public utilities150,064 142,425 142,425 
All other corporate securities2,683,984 2,568,814 2,568,814 
Collateralized loan obligation securities and other asset-backed securities1,911,831 1,834,827 1,834,827 
Residential mortgage-backed securities1,568,960 1,477,483 1,477,483 
Commercial mortgage-backed securities718,623 674,845 674,845 
Total fixed income securities, available-for-sale7,880,697 7,499,197 7,499,197 
Equity securities:   
Common stock:   
Banks, trusts and insurance companies33,224 32,725 32,725 
Industrial, miscellaneous and all other147,892 152,614 152,614 
Nonredeemable preferred stock1,960 1,816 1,816 
Total equity securities183,076 187,155 187,155 
Commercial mortgage loans188,708 188,417 
Short-term investments309,300 309,317 
Alternative investments395,779 395,779 
Other investments91,164  91,164 
Total investments$9,071,424  8,693,729 

See accompanying Report of Independent Registered Public Accounting Firm in Item 8. "Financial Statements and Supplementary Data." of this Form 10-K