v3.26.1
INVESTMENTS - Schedule of Credit Quality of Investment Securities With Contractual Maturities or The Issuer of Such Securities (Details) - USD ($)
$ in Thousands
Jun. 30, 2026
Dec. 31, 2025
Debt Securities, Available-for-sale [Line Items]    
Fair Value $ 1,506,146 $ 1,431,028
% of Total Fair Value 100.00% 100.00%
AAA    
Debt Securities, Available-for-sale [Line Items]    
Fair Value $ 496,769 $ 452,520
% of Total Fair Value 32.90% 31.60%
AA    
Debt Securities, Available-for-sale [Line Items]    
Fair Value $ 261,456 $ 238,705
% of Total Fair Value 17.40% 16.70%
A    
Debt Securities, Available-for-sale [Line Items]    
Fair Value $ 417,091 $ 431,545
% of Total Fair Value 27.70% 30.20%
BBB    
Debt Securities, Available-for-sale [Line Items]    
Fair Value $ 301,084 $ 298,976
% of Total Fair Value 20.00% 20.90%
No Rating Available    
Debt Securities, Available-for-sale [Line Items]    
Fair Value $ 29,746 $ 9,282
% of Total Fair Value 2.00% 0.60%