Amount of increase (decrease) in the fair value of derivatives recognized in the income statement.

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Amount after tax and reclassification adjustments of gain (loss) on foreign currency translation adjustments, foreign currency transactions designated and effective as economic hedges of a net investment in a foreign entity and intra-entity foreign currency transactions that are of a long-term-investment nature.

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DERIVATIVE INSTRUMENTS - Gain (Loss) Recognized in the Consolidated Statements of Operations Related to its Derivative Instruments (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized on derivatives	$ (70,671)	$ (100,754)	$ (56,496)	$ (167,102)
Derivative instruments not designated as hedges
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized on derivatives	(71,262)	(108,075)	(58,035)	(171,396)
Derivative instruments not designated as hedges \| Interest rate futures
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized on derivatives	(47,030)	(14,699)	(21,547)	(43,486)
Derivative instruments not designated as hedges \| Foreign Currency Forward Contracts, Underwriting and Non-investment Operations
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized on derivatives	4,900	(51,834)	9,645	(72,757)
Derivative instruments not designated as hedges \| Foreign currency forward contracts, investment operations
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized on derivatives	(11,111)	10,062	(14,791)	8,171
Derivative instruments not designated as hedges \| Foreign currency option contracts
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized on derivatives	0	(225)	0	(444)
Derivative instruments not designated as hedges \| Credit default swaps
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized on derivatives	(17,460)	(2,337)	(29,414)	(6,474)
Derivative instruments not designated as hedges \| Equity futures
Derivative Instruments, Gain (Loss) [Line Items]
Amount of gain (loss) recognized on derivatives	(561)	(49,042)	(1,928)	(56,406)
Derivative instruments designated as hedges \| Foreign currency forward contracts, investment operations
Derivative Instruments, Gain (Loss) [Line Items]
Accumulated other comprehensive income (loss)	$ 591	$ 7,321	$ 1,539	$ 4,294