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INVESTMENTS - Schedule of Credit Quality of Investment Securities With Contractual Maturities or The Issuer of Such Securities (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Debt Securities, Available-for-sale [Line Items]
Fair Value	$ 1,269,079	$ 1,064,330
Percentage of Total Fair Value	100.00%	100.00%
AAA
Debt Securities, Available-for-sale [Line Items]
Fair Value	$ 378,732	$ 333,516
Percentage of Total Fair Value	29.90%	31.30%
AA
Debt Securities, Available-for-sale [Line Items]
Fair Value	$ 146,456	$ 128,249
Percentage of Total Fair Value	11.50%	12.00%
A
Debt Securities, Available-for-sale [Line Items]
Fair Value	$ 425,503	$ 356,090
Percentage of Total Fair Value	33.50%	33.50%
BBB
Debt Securities, Available-for-sale [Line Items]
Fair Value	$ 313,265	$ 245,823
Percentage of Total Fair Value	24.70%	23.10%
No Rating Available
Debt Securities, Available-for-sale [Line Items]
Fair Value	$ 5,123	$ 652
Percentage of Total Fair Value	0.40%	0.10%

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-Topic 320
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-URI https://asc.fasb.org/1943274/2147481800/320-10-50-2

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