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AVAILABLE-FOR-SALE INVESTMENTS - Investments by Major Security Type (Details) - USD ($) $ in Thousands	Sep. 30, 2023	Dec. 31, 2022
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	$ 12,033	$ 99,234
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(7)	(642)
Total Fair Value	12,026	98,592
Commercial Paper
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	9,871	32,997
Gross Unrealized Gains	0	0
Gross Unrealized Losses	(5)	(241)
Total Fair Value	9,866	32,756
US Treasury Notes
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	2,162
Gross Unrealized Gains	0
Gross Unrealized Losses	(2)
Total Fair Value	2,160
Corporate Bonds
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	0	58,791
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	(349)
Total Fair Value	0	58,442
Municipal Bonds
Debt Securities, Available-for-sale [Line Items]
Amortized Cost	0	7,446
Gross Unrealized Gains	0	0
Gross Unrealized Losses	0	(52)
Total Fair Value	$ 0	$ 7,394

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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