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INVESTMENTS - Narrative (Details) - USD ($)		6 Months Ended
	Mar. 01, 2021	Jun. 30, 2021	Jun. 30, 2022	Dec. 31, 2021
Debt Securities, Available-for-sale [Line Items]
Fair value of securities transferred from available for sale to fixed maturities, held to maturity	$ 405,000,000	$ 405,000,000
Net carrying value of fixed investments held to maturity			$ 641,428,000	$ 446,016,000
Allowance for expected credit losses			0	0
ABS
Debt Securities, Available-for-sale [Line Items]
Net carrying value of fixed investments held to maturity			574,228,000	408,316,000
Allowance for expected credit losses			0	0
Corporate debt
Debt Securities, Available-for-sale [Line Items]
Net carrying value of fixed investments held to maturity			67,200,000	37,700,000
Allowance for expected credit losses			$ 0	$ 0

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- Definition

Transfer To Investments, Available For Sale To Fixed Maturities

+ References

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- Definition

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

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 45
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=124255206&loc=SL82895884-210446

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- Definition

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
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 5
-Subparagraph (f)
-URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27232-111563

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 320
-SubTopic 10
-Section 50
-Paragraph 5
-Subparagraph (d)
-URI https://asc.fasb.org/extlink&oid=126970911&loc=d3e27232-111563

Reference 3: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 326
-SubTopic 20
-Section 45
-Paragraph 1
-URI https://asc.fasb.org/extlink&oid=124255206&loc=SL82895884-210446

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