CASH, CASH EQUIVALENTS AND INVESTMENTS - Schedule of Investments (Details) - USD ($) $ in Thousands	Mar. 31, 2023	Dec. 31, 2022
Short-term Investments [Member]
Schedule Of Available For Sale Securities [Line Items]
Available-for-sale Debt Securities, Amortized Cost Basis	$ 493,031	$ 490,170
Available-for-sale Securities, Gross Unrealized Gains	94	32
Available-for-sale Securities, Gross Unrealized Losses	(5,313)	(5,857)
Available-for-sale Securities, Fair Value Disclosure	487,812	484,345
Long-term Investments [Member]
Schedule Of Available For Sale Securities [Line Items]
Available-for-sale Debt Securities, Amortized Cost Basis	198,786	249,943
Available-for-sale Securities, Gross Unrealized Gains	592	52
Available-for-sale Securities, Gross Unrealized Losses	(54)	(2,180)
Available-for-sale Securities, Fair Value Disclosure	199,324	247,815
Corporate Bonds [Member] \| Short-term Investments [Member]
Schedule Of Available For Sale Securities [Line Items]
Available-for-sale Debt Securities, Amortized Cost Basis	101,564	150,698
Available-for-sale Securities, Gross Unrealized Gains	6	0
Available-for-sale Securities, Gross Unrealized Losses	(497)	(910)
Available-for-sale Securities, Fair Value Disclosure	101,073	149,788
Corporate Bonds [Member] \| Long-term Investments [Member]
Schedule Of Available For Sale Securities [Line Items]
Available-for-sale Debt Securities, Amortized Cost Basis	917	2,479
Available-for-sale Securities, Gross Unrealized Gains	0	0
Available-for-sale Securities, Gross Unrealized Losses	(42)	(28)
Available-for-sale Securities, Fair Value Disclosure	875	2,451
U.S. Government Bonds [Member] \| Short-term Investments [Member]
Schedule Of Available For Sale Securities [Line Items]
Available-for-sale Debt Securities, Amortized Cost Basis	391,467	339,472
Available-for-sale Securities, Gross Unrealized Gains	88	32
Available-for-sale Securities, Gross Unrealized Losses	(4,816)	(4,947)
Available-for-sale Securities, Fair Value Disclosure	386,739	334,557
U.S. Government Bonds [Member] \| Long-term Investments [Member]
Schedule Of Available For Sale Securities [Line Items]
Available-for-sale Debt Securities, Amortized Cost Basis	197,869	247,464
Available-for-sale Securities, Gross Unrealized Gains	592	52
Available-for-sale Securities, Gross Unrealized Losses	(12)	(2,152)
Available-for-sale Securities, Fair Value Disclosure	$ 198,449	$ 245,364

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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-SubTopic 10
-Section 50
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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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Amortized cost 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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