INVESTMENTS - Schedule of Investment Income Comprised Primarily of Interest and Dividends (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025	Jun. 30, 2026	Jun. 30, 2025
Net Investment Income [Line Items]
Total investment income	$ 21,016	$ 18,037	$ 41,293	$ 34,840
Less: Investment expenses	(803)	(779)	(1,593)	(1,522)
Net investment income	20,213	17,258	39,700	33,318
Available-for-sale debt securities
Net Investment Income [Line Items]
Investment income	14,720	11,615	28,248	22,334
Equity securities
Net Investment Income [Line Items]
Investment income	1,046	933	1,962	1,729
Cash and cash equivalents
Net Investment Income [Line Items]
Investment income	5,088	5,331	10,750	10,453
Other
Net Investment Income [Line Items]
Investment income	$ 162	$ 158	$ 333	$ 324

Represents the total of interest and dividend income, including any amortization and accretion (as applicable) of discounts and premiums, earned from (1) loans and leases whether held-for-sale or held-in-portfolio; (2) investment securities; (3) federal funds sold; (4) securities purchased under agreements to resell; (5) investments in banker's acceptances, commercial paper, or certificates of deposit; (6) dividend income; or (7) other investments not otherwise specified herein.

- Definition

Amount, after investment expense, of income earned from investments in securities and real estate. Includes, but is not limited to, real estate investment, policy loans, dividends, and interest. Excludes realized gain (loss) on investments.

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