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FINANCIAL INSTRUMENTS - Schedule of Available-For-Sale Securities (Details) - USD ($) $ in Thousands	Jun. 30, 2022	Dec. 31, 2021
Fair Value Measurements
Cost	$ 195,430
Gross Unrealized Gains	0
Gross Unrealized Losses	(1,098)
Fair Value (Level 2)	194,332
Short-term:
Fair Value Measurements
Cost		$ 70,651
Gross Unrealized Gains		182
Gross Unrealized Losses		(2)
Fair Value (Level 2)		70,831
Asset-backed securities | Short-term:
Fair Value Measurements
Cost	30,906	3,182
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(239)	0
Fair Value (Level 2)	30,667	3,182
Commercial paper | Short-term:
Fair Value Measurements
Cost	138,705	57,533
Gross Unrealized Gains	0	80
Gross Unrealized Losses	(796)	(2)
Fair Value (Level 2)	137,909	57,611
Corporate bonds | Short-term:
Fair Value Measurements
Cost	6,288	9,936
Gross Unrealized Gains	0	102
Gross Unrealized Losses	(31)	0
Fair Value (Level 2)	6,257	$ 10,038
U.S. Government bonds | Short-term:
Fair Value Measurements
Cost	19,531
Gross Unrealized Gains	0
Gross Unrealized Losses	(32)
Fair Value (Level 2)	$ 19,499

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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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