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FAIR VALUE MEASUREMENTS - SECURITIES WITH UNREALIZED LOSSES (Details) - USD ($) $ in Thousands | Dec. 31, 2022 | Dec. 31, 2021
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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)

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