SCHEDULE I - SUMMARY OF INVESTMENTS - OTHER THAN INVESTMENTS IN RELATED PARTIES

12 Months Ended

Dec. 31, 2020

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 — Summary of investments - Other than investments in related parties - December 31, 2020
(In thousands) Type of Investment	Amortized Cost		Fair Value		Amount at which shown in the balance sheet
Fixed income:
Bonds:
United States Government and government agencies and authorities	$	264,531	$	265,693	$	265,693
States, municipalities and political subdivisions	2,083,568		2,249,869		2,249,869
Foreign Governments	4,485		4,709		4,709
Public utilities	303,285		303,011		303,011
Asset-backed securities	203,807		206,686		206,686
Collateralized loan obligations	310,616		310,490		310,490
Mortgage-backed	738,104		758,668		758,668
All other corporate bonds	2,387,575		2,541,277		2,541,277
Other short-term investments	21,193		21,193		21,193
Total fixed income	6,317,164		6,661,596		6,661,596
Equity securities:
Common stocks:
Industrial, miscellaneous and all other	17,522		18,215		18,215
Total equity securities	17,522		18,215		18,215
Total investments	$	6,334,686	$	6,679,811	$	6,679,811