INVESTMENTS IN DEBT SECURITIES - Debt Securities, Available-for-sale, Unrealized Loss Position, Fair Value (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Short-term debt securities:
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Less than 12 Months, Fair Value	$ 69,859	$ 151,548
Less than 12 Months, Gross Unrealized Losses	(94)	(183)
Greater than 12 months, Fair Value	5,989	385,780
Greater than 12 months, Gross Unrealized Losses	(7)	(7,419)
Total, Fair Value	75,848	537,328
Total, Gross Unrealized Losses	(101)	(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	18,954	9,770
Less than 12 Months, Gross Unrealized Losses	(1)	(10)
Greater than 12 months, Fair Value	0	57,745
Greater than 12 months, Gross Unrealized Losses	0	(1,253)
Total, Fair Value	18,954	67,515
Total, Gross Unrealized Losses	(1)	(1,263)
Short-term debt securities: \| Corporate bonds
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Less than 12 Months, Fair Value	50,905	61,054
Less than 12 Months, Gross Unrealized Losses	(93)	(60)
Greater than 12 months, Fair Value	1,995	110,706
Greater than 12 months, Gross Unrealized Losses	(3)	(1,673)
Total, Fair Value	52,900	171,760
Total, Gross Unrealized Losses	(96)	(1,733)
Short-term debt securities: \| Municipal 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		9,165
Greater than 12 months, Gross Unrealized Losses		(231)
Total, Fair Value		9,165
Total, Gross Unrealized Losses		(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	0	80,724
Less than 12 Months, Gross Unrealized Losses	0	(113)
Greater than 12 months, Fair Value	3,994	207,183
Greater than 12 months, Gross Unrealized Losses	(4)	(4,243)
Total, Fair Value	3,994	287,907
Total, Gross Unrealized Losses	(4)	(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	152,069	41,269
Less than 12 Months, Gross Unrealized Losses	(646)	(92)
Greater than 12 months, Fair Value	363	2,657
Greater than 12 months, Gross Unrealized Losses	(123)	(126)
Total, Fair Value	152,432	43,926
Total, Gross Unrealized Losses	(769)	(218)
Long-term debt securities: \| U.S. agency securities
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Less than 12 Months, Fair Value	9,990
Less than 12 Months, Gross Unrealized Losses	(10)
Greater than 12 months, Fair Value	0
Greater than 12 months, Gross Unrealized Losses	0
Total, Fair Value	9,990
Total, Gross Unrealized Losses	(10)
Long-term debt securities: \| Corporate bonds
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Less than 12 Months, Fair Value	80,550	11,819
Less than 12 Months, Gross Unrealized Losses	(384)	(31)
Greater than 12 months, Fair Value	0	2,274
Greater than 12 months, Gross Unrealized Losses	0	(14)
Total, Fair Value	80,550	14,093
Total, Gross Unrealized Losses	(384)	(45)
Long-term debt securities: \| Municipal securities
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]
Less than 12 Months, Fair Value	2,848	976
Less than 12 Months, Gross Unrealized Losses	(128)	(24)
Greater than 12 months, Fair Value	363	383
Greater than 12 months, Gross Unrealized Losses	(123)	(112)
Total, Fair Value	3,211	1,359
Total, Gross Unrealized Losses	(251)	(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	58,681	28,474
Less than 12 Months, Gross Unrealized Losses	(124)	(37)
Greater than 12 months, Fair Value	0	0
Greater than 12 months, Gross Unrealized Losses	0	0
Total, Fair Value	58,681	28,474
Total, Gross Unrealized Losses	$ (124)	$ (37)

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