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INVESTMENTS IN DEBT SECURITIES - Debt Securities, Available-for-sale, Unrealized Loss Position, Fair Value (Details) - USD ($)
$ in Thousands
Dec. 31, 2025
Dec. 31, 2024
Short-term debt securities:    
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]    
Less than 12 Months, Fair Value $ 15,523 $ 69,859
Less than 12 Months, Gross Unrealized Losses (3) (94)
Greater than 12 months, Fair Value 0 5,989
Greater than 12 months, Gross Unrealized Losses 0 (7)
Total, Fair Value 15,523 75,848
Total, Gross Unrealized Losses (3) (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 17 18,954
Less than 12 Months, Gross Unrealized Losses 0 (1)
Greater than 12 months, Fair Value 0 0
Greater than 12 months, Gross Unrealized Losses 0 0
Total, Fair Value 17 18,954
Total, Gross Unrealized Losses 0 (1)
Short-term debt securities: | Corporate bonds    
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]    
Less than 12 Months, Fair Value 3,508 50,905
Less than 12 Months, Gross Unrealized Losses 0 (93)
Greater than 12 months, Fair Value 0 1,995
Greater than 12 months, Gross Unrealized Losses 0 (3)
Total, Fair Value 3,508 52,900
Total, Gross Unrealized Losses 0 (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 11,998 0
Less than 12 Months, Gross Unrealized Losses (3) 0
Greater than 12 months, Fair Value 0 3,994
Greater than 12 months, Gross Unrealized Losses 0 (4)
Total, Fair Value 11,998 3,994
Total, Gross Unrealized Losses (3) (4)
Long-term debt securities:    
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]    
Less than 12 Months, Fair Value 7,813 152,069
Less than 12 Months, Gross Unrealized Losses (100) (646)
Greater than 12 months, Fair Value 1,235 363
Greater than 12 months, Gross Unrealized Losses (146) (123)
Total, Fair Value 9,048 152,432
Total, Gross Unrealized Losses (246) (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   9,990
Less than 12 Months, Gross Unrealized Losses   (10)
Greater than 12 months, Fair Value   0
Greater than 12 months, Gross Unrealized Losses   0
Total, Fair Value   9,990
Total, Gross Unrealized Losses   (10)
Long-term debt securities: | Corporate bonds    
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]    
Less than 12 Months, Fair Value 4,539 80,550
Less than 12 Months, Gross Unrealized Losses (2) (384)
Greater than 12 months, Fair Value 0 0
Greater than 12 months, Gross Unrealized Losses 0 0
Total, Fair Value 4,539 80,550
Total, Gross Unrealized Losses (2) (384)
Long-term debt securities: | Municipal securities    
Debt Securities, Available-for-sale, Unrealized Loss Position [Line Items]    
Less than 12 Months, Fair Value 3,274 2,848
Less than 12 Months, Gross Unrealized Losses (98) (128)
Greater than 12 months, Fair Value 1,235 363
Greater than 12 months, Gross Unrealized Losses (146) (123)
Total, Fair Value 4,509 3,211
Total, Gross Unrealized Losses $ (244) (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   58,681
Less than 12 Months, Gross Unrealized Losses   (124)
Greater than 12 months, Fair Value   0
Greater than 12 months, Gross Unrealized Losses   0
Total, Fair Value   58,681
Total, Gross Unrealized Losses   $ (124)