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RELATED PARTY TRANSACTIONS (Details) - USD ($) $ in Thousands | Mar. 31, 2022 | Dec. 31, 2021
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Related Party Transaction [Line Items] |  |
Other investments, at fair value | $ 954,602 | $ 947,982
Investment In Related Party | Stone Point Capital, LLC | Co-investment With Gordon Brothers |  |
Related Party Transaction [Line Items] |  |
Other investments, at fair value | $ 11,000 |

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- Definition Fair value of investment other than investment in equity security, investment in debt security and equity method investment. Includes, but is not limited to, investment in certain entities that calculate net asset value per share. Example includes, but is not limited to, investment in hedge fund, venture capital fund, private equity fund, and real estate partnership or fund. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 50 -Paragraph 6A -Subparagraph (a) -URI http://asc.fasb.org/extlink&oid=123874694&loc=SL6742756-110258 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Publisher FASB -Name Accounting Standards Codification -Topic 820 -SubTopic 10 -Section 35 -Paragraph 54B -URI http://asc.fasb.org/extlink&oid=122636397&loc=SL7495116-110257 + Details
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