FAIR VALUE MEASUREMENTS - SECURITIES WITH UNREALIZED LOSSES (Details) - USD ($) $ in Thousands	Dec. 31, 2022	Dec. 31, 2021
Schedule Of Available For Sale Securities [Line Items]
Less Than 12 Months - Estimated Fair Value	$ 75,721	$ 128,591
Less Than 12 Months - Gross Unrealized Losses	(165)	(170)
12 Months or Greater - Estimated Fair Value	28,435	4,993
12 Months or Greater - Gross Unrealized Losses	(82)	(7)
Total - Estimated Fair Value	104,156	133,584
Total - Gross Unrealized Losses	(247)	(177)
U.S. Treasury securities (due in less than one year)
Schedule Of Available For Sale Securities [Line Items]
Less Than 12 Months - Estimated Fair Value	11,424	15,567
Less Than 12 Months - Gross Unrealized Losses	(57)	(18)
12 Months or Greater - Estimated Fair Value	1,497
12 Months or Greater - Gross Unrealized Losses	(5)
Total - Estimated Fair Value	12,921	15,567
Total - Gross Unrealized Losses	(62)	(18)
U.S. Treasury securities (due in one to two years)
Schedule Of Available For Sale Securities [Line Items]
Less Than 12 Months - Estimated Fair Value		1,521
Less Than 12 Months - Gross Unrealized Losses		(3)
Total - Estimated Fair Value		1,521
Total - Gross Unrealized Losses		(3)
Municipal securities (due in less than a year)
Schedule Of Available For Sale Securities [Line Items]
12 Months or Greater - Estimated Fair Value	2,976
12 Months or Greater - Gross Unrealized Losses	(24)
Total - Estimated Fair Value	2,976
Total - Gross Unrealized Losses	(24)
Municipal securities (due in one to two years)
Schedule Of Available For Sale Securities [Line Items]
Less Than 12 Months - Estimated Fair Value		2,985
Less Than 12 Months - Gross Unrealized Losses		(15)
Total - Estimated Fair Value		2,985
Total - Gross Unrealized Losses		(15)
Government-sponsored enterprise securities (due in less than one year)
Schedule Of Available For Sale Securities [Line Items]
Less Than 12 Months - Estimated Fair Value	9,845	1,500
Less Than 12 Months - Gross Unrealized Losses	(14)
12 Months or Greater - Estimated Fair Value		4,993
12 Months or Greater - Gross Unrealized Losses		(7)
Total - Estimated Fair Value	9,845	6,493
Total - Gross Unrealized Losses	(14)	(7)
Commercial paper (due in less than one year)
Schedule Of Available For Sale Securities [Line Items]
Less Than 12 Months - Estimated Fair Value	52,454	66,872
Less Than 12 Months - Gross Unrealized Losses	(92)	(38)
Total - Estimated Fair Value	52,454	66,872
Total - Gross Unrealized Losses	(92)	(38)
Corporate notes (due in less than one year)
Schedule Of Available For Sale Securities [Line Items]
Less Than 12 Months - Estimated Fair Value	1,998	16,001
Less Than 12 Months - Gross Unrealized Losses	(2)	(17)
12 Months or Greater - Estimated Fair Value	23,962
12 Months or Greater - Gross Unrealized Losses	(53)
Total - Estimated Fair Value	25,960	16,001
Total - Gross Unrealized Losses	$ (55)	(17)
Corporate notes (due in one to two years)
Schedule Of Available For Sale Securities [Line Items]
Less Than 12 Months - Estimated Fair Value		24,145
Less Than 12 Months - Gross Unrealized Losses		(79)
Total - Estimated Fair Value		24,145
Total - Gross Unrealized Losses		$ (79)