INVESTMENTS IN DEBT SECURITIES - Short-Term and Long-Term Investments (Details) - USD ($) $ in Thousands	Dec. 31, 2024	Dec. 31, 2023
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 873,622
Fair Value	875,403
Short-term debt securities:
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	402,814	$ 859,198
Gross Unrealized Gains	713	306
Gross Unrealized Losses	(101)	(7,603)
Fair Value	403,426	851,901
Short-term debt securities: \| U.S. agency securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	34,454	68,778
Gross Unrealized Gains	15	0
Gross Unrealized Losses	(1)	(1,263)
Fair Value	34,468	67,515
Short-term debt securities: \| Corporate bonds
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	160,238	216,864
Gross Unrealized Gains	248	96
Gross Unrealized Losses	(96)	(1,733)
Fair Value	160,390	215,227
Short-term debt securities: \| Commercial paper
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	333	15,159
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	333	15,159
Short-term debt securities: \| Municipal securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	398	9,396
Gross Unrealized Gains	1	0
Gross Unrealized Losses	0	(231)
Fair Value	399	9,165
Short-term debt securities: \| Certificates of deposit
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	1,051	3,856
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	0
Fair Value	1,051	3,856
Short-term debt securities: \| U.S. government securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	206,340	544,145
Gross Unrealized Gains	449	210
Gross Unrealized Losses	(4)	(4,357)
Fair Value	206,785	539,998
Short-term debt securities: \| Foreign government securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost		1,000
Gross Unrealized Gains		0
Gross Unrealized Losses		(19)
Fair Value		981
Long-term debt securities:
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	470,808	249,608
Gross Unrealized Gains	1,938	1,739
Gross Unrealized Losses	(769)	(220)
Fair Value	471,977	251,127
Long-term debt securities: \| U.S. agency securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	49,017
Gross Unrealized Gains	23
Gross Unrealized Losses	(10)
Fair Value	49,030
Long-term debt securities: \| Corporate bonds
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	195,035	94,564
Gross Unrealized Gains	693	809
Gross Unrealized Losses	(384)	(45)
Fair Value	195,344	95,328
Long-term debt securities: \| Municipal securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	4,592	2,495
Gross Unrealized Gains	4	55
Gross Unrealized Losses	(251)	(138)
Fair Value	4,345	2,412
Long-term debt securities: \| U.S. government securities
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	222,164	152,549
Gross Unrealized Gains	1,218	875
Gross Unrealized Losses	(124)	(37)
Fair Value	$ 223,258	$ 153,387

Amount, before tax, of unrealized gain in accumulated other comprehensive income (AOCI) on 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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Amount, before tax, of unrealized loss in accumulated other comprehensive income (AOCI) on 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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