INVESTMENTS - Narrative (Details)	3 Months Ended
Mar. 31, 2023 USD ($) investment	Mar. 31, 2022 USD ($)	Dec. 31, 2022 investment
Debt Securities, Available-for-sale [Line Items]
Number of investment positions in a loss position \| investment	800
Number of investments (available-for-sale) \| investment	1,340
Number of securities in unrealized loss position \| investment			721
Number of investments \| investment			2,432
Investment income (loss) \| $	$ 46,000	$ (40,888,000)
Proceeds from sale of available-for-sale securities \| $	2,400,000	5,100,000
Realized recognized (losses) gains \| $		(41,000,000.0)
Debt Securities
Debt Securities, Available-for-sale [Line Items]
Investment income (loss) \| $	$ 46,300	$ 100,000

Debt Securities, Available-For-Sale And Held-To-Maturity, Number Of Investments

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Debt Securities, Available-For-Sale And Held-To-Maturity, Unrealized Loss Position, Number Of Positions

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Debt Securities, Available-For Sale, Number Of Investments

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Interest income and realized gains and losses on debt securities, as well as unrealized gains and losses on equity securities.

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Number of investments in debt securities measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in unrealized loss position, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Amount of realized loss from sale of investment in equity security measured at fair value with change in fair value recognized in net income (FV-NI).

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Amount of cash inflow from sale of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale).

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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