INVESTMENTS IN DEBT SECURITIES - Debt Securities, Available-for-sale, Unrealized Loss Position, Fair Value (Details) - USD ($) $ in Thousands	Jun. 30, 2024	Dec. 31, 2023
Short-term debt securities
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Less than 12 Months, Fair Value	$ 352,253	$ 151,548
Less than 12 Months, Gross Unrealized Losses	(213)	(183)
Greater than 12 months, Fair Value	158,307	385,780
Greater than 12 months, Gross Unrealized Losses	(1,251)	(7,419)
Total, Fair Value	510,560	537,328
Total, Gross Unrealized Losses	(1,464)	(7,602)
Short-term debt securities \| U.S. agency securities
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Less than 12 Months, Fair Value	10,885	9,770
Less than 12 Months, Gross Unrealized Losses	(3)	(10)
Greater than 12 months, Fair Value	27,836	57,745
Greater than 12 months, Gross Unrealized Losses	(164)	(1,253)
Total, Fair Value	38,721	67,515
Total, Gross Unrealized Losses	(167)	(1,263)
Short-term debt securities \| Corporate bonds
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Less than 12 Months, Fair Value	72,368	61,054
Less than 12 Months, Gross Unrealized Losses	(104)	(60)
Greater than 12 months, Fair Value	21,276	110,706
Greater than 12 months, Gross Unrealized Losses	(169)	(1,673)
Total, Fair Value	93,644	171,760
Total, Gross Unrealized Losses	(273)	(1,733)
Short-term debt securities \| Municipal securities
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Less than 12 Months, Fair Value	91	0
Less than 12 Months, Gross Unrealized Losses	0	0
Greater than 12 months, Fair Value	9,357	9,165
Greater than 12 months, Gross Unrealized Losses	(30)	(231)
Total, Fair Value	9,448	9,165
Total, Gross Unrealized Losses	(30)	(231)
Short-term debt securities \| U.S. government securities
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Less than 12 Months, Fair Value	268,909	80,724
Less than 12 Months, Gross Unrealized Losses	(106)	(113)
Greater than 12 months, Fair Value	99,838	207,183
Greater than 12 months, Gross Unrealized Losses	(888)	(4,243)
Total, Fair Value	368,747	287,907
Total, Gross Unrealized Losses	(994)	(4,356)
Short-term debt securities \| Foreign government securities
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Less than 12 Months, Fair Value		0
Less than 12 Months, Gross Unrealized Losses		0
Greater than 12 months, Fair Value		981
Greater than 12 months, Gross Unrealized Losses		(19)
Total, Fair Value		981
Total, Gross Unrealized Losses		(19)
Long-term debt securities
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Less than 12 Months, Fair Value	139,832	41,269
Less than 12 Months, Gross Unrealized Losses	(442)	(92)
Greater than 12 months, Fair Value	1,833	2,657
Greater than 12 months, Gross Unrealized Losses	(149)	(126)
Total, Fair Value	141,665	43,926
Total, Gross Unrealized Losses	(591)	(218)
Long-term debt securities \| Corporate bonds
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Less than 12 Months, Fair Value	96,228	11,819
Less than 12 Months, Gross Unrealized Losses	(316)	(31)
Greater than 12 months, Fair Value	979	2,274
Greater than 12 months, Gross Unrealized Losses	(12)	(14)
Total, Fair Value	97,207	14,093
Total, Gross Unrealized Losses	(328)	(45)
Long-term debt securities \| Municipal securities
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Less than 12 Months, Fair Value	1,452	976
Less than 12 Months, Gross Unrealized Losses	(38)	(24)
Greater than 12 months, Fair Value	854	383
Greater than 12 months, Gross Unrealized Losses	(137)	(112)
Total, Fair Value	2,306	1,359
Total, Gross Unrealized Losses	(175)	(136)
Long-term debt securities \| U.S. government securities
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Less than 12 Months, Fair Value	42,152	28,474
Less than 12 Months, Gross Unrealized Losses	(88)	(37)
Greater than 12 months, Fair Value	0	0
Greater than 12 months, Gross Unrealized Losses	0	0
Total, Fair Value	42,152	28,474
Total, Gross Unrealized Losses	$ (88)	$ (37)

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Amount of investment in debt security measured at fair value with change in fair value recognized in other comprehensive income (available-for-sale), in continuous unrealized loss position for more than 12 months, without allowance for credit loss. Includes beneficial interest in securitized financial asset.

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