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INVESTMENTS IN DEBT SECURITIES - Debt Securities, Available-for-sale, Unrealized Loss Position, Fair Value (Details) - USD ($) $ in Thousands | Jun. 30, 2025 | Dec. 31, 2024
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Short-term debt securities |  |
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items] |  |
Less than 12 Months, Fair Value | $ 92,963 | $ 69,859
Less than 12 Months, Gross Unrealized Losses | (13) | (94)
Greater than 12 months, Fair Value | 0 | 5,989
Greater than 12 months, Gross Unrealized Losses | 0 | (7)
Total, Fair Value | 92,963 | 75,848
Total, Gross Unrealized Losses | (13) | (101)
Short-term debt securities | U.S. agency securities |  |
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items] |  |
Less than 12 Months, Fair Value |  | 18,954
Less than 12 Months, Gross Unrealized Losses |  | (1)
Greater than 12 months, Fair Value |  | 0
Greater than 12 months, Gross Unrealized Losses |  | 0
Total, Fair Value |  | 18,954
Total, Gross Unrealized Losses |  | (1)
Short-term debt securities | Corporate bonds |  |
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items] |  |
Less than 12 Months, Fair Value | 8,205 | 50,905
Less than 12 Months, Gross Unrealized Losses | (2) | (93)
Greater than 12 months, Fair Value | 0 | 1,995
Greater than 12 months, Gross Unrealized Losses | 0 | (3)
Total, Fair Value | 8,205 | 52,900
Total, Gross Unrealized Losses | (2) | (96)
Short-term debt securities | U.S. government securities |  |
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items] |  |
Less than 12 Months, Fair Value | 84,758 | 0
Less than 12 Months, Gross Unrealized Losses | (11) | 0
Greater than 12 months, Fair Value | 0 | 3,994
Greater than 12 months, Gross Unrealized Losses | 0 | (4)
Total, Fair Value | 84,758 | 3,994
Total, Gross Unrealized Losses | (11) | (4)
Long-term debt securities |  |
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items] |  |
Less than 12 Months, Fair Value | 38,653 | 152,069
Less than 12 Months, Gross Unrealized Losses | (178) | (646)
Greater than 12 months, Fair Value | 349 | 363
Greater than 12 months, Gross Unrealized Losses | (114) | (123)
Total, Fair Value | 39,002 | 152,432
Total, Gross Unrealized Losses | (292) | (769)
Long-term debt securities | U.S. agency securities |  |
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items] |  |
Less than 12 Months, Fair Value | 7,996 | 9,990
Less than 12 Months, Gross Unrealized Losses | (5) | (10)
Greater than 12 months, Fair Value | 0 | 0
Greater than 12 months, Gross Unrealized Losses | 0 | 0
Total, Fair Value | 7,996 | 9,990
Total, Gross Unrealized Losses | (5) | (10)
Long-term debt securities | Corporate bonds |  |
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items] |  |
Less than 12 Months, Fair Value | 7,276 | 80,550
Less than 12 Months, Gross Unrealized Losses | (25) | (384)
Greater than 12 months, Fair Value | 0 | 0
Greater than 12 months, Gross Unrealized Losses | 0 | 0
Total, Fair Value | 7,276 | 80,550
Total, Gross Unrealized Losses | (25) | (384)
Long-term debt securities | Municipal securities |  |
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items] |  |
Less than 12 Months, Fair Value | 2,747 | 2,848
Less than 12 Months, Gross Unrealized Losses | (121) | (128)
Greater than 12 months, Fair Value | 349 | 363
Greater than 12 months, Gross Unrealized Losses | (114) | (123)
Total, Fair Value | 3,096 | 3,211
Total, Gross Unrealized Losses | (235) | (251)
Long-term debt securities | U.S. government securities |  |
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items] |  |
Less than 12 Months, Fair Value | 20,634 | 58,681
Less than 12 Months, Gross Unrealized Losses | (27) | (124)
Greater than 12 months, Fair Value | 0 | 0
Greater than 12 months, Gross Unrealized Losses | 0 | 0
Total, Fair Value | 20,634 | 58,681
Total, Gross Unrealized Losses | $ (27) | $ (124)

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