INVESTMENTS - Fixed Maturities Held to Maturity (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Held to maturity
Amortized cost	$ 716,768	$ 698,351
Allowance for expected credit losses	0	0
Net carrying value	716,768	698,351
Gross unrealized gains	0	0
Gross unrealized losses	(19,993)	(23,608)
Fair value	696,775	674,743
Corporate debt
Held to maturity
Amortized cost	85,200	85,200
Allowance for expected credit losses	0	0
Net carrying value	85,200	85,200
Gross unrealized gains	0	0
Gross unrealized losses	(9,535)	(11,428)
Fair value	75,665	73,772
ABS
Held to maturity
Amortized cost	631,568	613,151
Allowance for expected credit losses	0	0
Net carrying value	631,568	613,151
Gross unrealized gains	0	0
Gross unrealized losses	(10,458)	(12,180)
Fair value	$ 621,110	$ 600,971

Amount, excluding accrued interest, of allowance for credit loss on investment in debt security measured at amortized cost (held-to-maturity).

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 45
-Paragraph 1
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Amount excluding accrued interest, after allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
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Amount excluding accrued interest, before allowance for credit loss, of investment in debt security measured at amortized cost (held-to-maturity).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
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Amount of accumulated unrecognized gain on investment in debt security measured at amortized cost (held-to-maturity).

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Fair value of investment in debt security measured at amortized cost (held-to-maturity).

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