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CASH, CASH EQUIVALENTS AND INVESTMENTS - Schedule of Investments (Details) - USD ($) $ in Thousands	Jun. 30, 2023	Dec. 31, 2022
Short-term Investments [Member]
Schedule Of Available For Sale Securities [Line Items]
Available-for-sale Debt Securities, Amortized Cost Basis	$ 469,774	$ 490,170
Available-for-sale Securities, Gross Unrealized Gains	2	32
Available-for-sale Securities, Gross Unrealized Losses	(4,097)	(5,857)
Available-for-sale Securities, Fair Value Disclosure	465,679	484,345
Long-term Investments [Member]
Schedule Of Available For Sale Securities [Line Items]
Available-for-sale Debt Securities, Amortized Cost Basis	199,257	249,943
Available-for-sale Securities, Gross Unrealized Gains	3	52
Available-for-sale Securities, Gross Unrealized Losses	(1,945)	(2,180)
Available-for-sale Securities, Fair Value Disclosure	197,315	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	102,295	150,698
Available-for-sale Securities, Gross Unrealized Gains	2
Available-for-sale Securities, Gross Unrealized Losses	(151)	(910)
Available-for-sale Securities, Fair Value Disclosure	102,146	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	275	2,479
Available-for-sale Securities, Gross Unrealized Losses	(85)	(28)
Available-for-sale Securities, Fair Value Disclosure	190	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	367,479	339,472
Available-for-sale Securities, Gross Unrealized Gains		32
Available-for-sale Securities, Gross Unrealized Losses	(3,946)	(4,947)
Available-for-sale Securities, Fair Value Disclosure	363,533	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	198,982	247,464
Available-for-sale Securities, Gross Unrealized Gains	3	52
Available-for-sale Securities, Gross Unrealized Losses	(1,860)	(2,152)
Available-for-sale Securities, Fair Value Disclosure	$ 197,125	$ 245,364

X

- Definition

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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