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COMMITMENTS AND CONTINGENCIES - Reinsurance Purchase Commitment, Investments and Funds at Lloyd's (Details) - USD ($) $ in Thousands | Dec. 31, 2024 | Dec. 31, 2023
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Unrecorded Unconditional Purchase Obligation [Line Items] |  |
Unfunded commitments related to other investments | $ 526,000 | $ 502,000
Purchase commitment | 0 | 6,000
Collateral in trust for third-party agreements | 2,602,306 | 2,597,633
Corporate debt |  |
Unrecorded Unconditional Purchase Obligation [Line Items] |  |
Purchase commitment | 94,000 | 16,000
CMBS |  |
Unrecorded Unconditional Purchase Obligation [Line Items] |  |
Purchase commitment | 9,000 | 10,000
Lloyd's |  |
Unrecorded Unconditional Purchase Obligation [Line Items] |  |
Collateral in trust for third-party agreements | $ 883,000 | $ 893,000

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- Definition The carrying amount as of the date of the latest financial statement presented of securities which are owned but transferred to serve as collateral for insurance and reinsurance agreements with third parties, and for which the transferee does not have the right by contract or custom to sell or re-pledge them to an unrelated party. + References No definition available. + Details
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- Definition The amount of unfunded commitments for which the entity is obligated, to those certain investments for which net asset value per share is calculated (including by unit, membership interest, or other equity (ownership interest) unit measure) (alternative investments). + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 107 -Publisher FASB -URI https://asc.fasb.org/1943274/2147482078/820-10-55-107 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 820 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 6A -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482106/820-10-50-6A + Details
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- Definition Amount of unrecorded obligation to transfer funds in future for fixed or minimum amount or quantity of product and service at fixed or minimum price. Includes, but is not limited to, lease not yet commenced and take-or-pay and throughput contracts. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 440 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482648/440-10-50-4 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 842 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 3 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147478964/842-20-50-3 + Details
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