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MARKETABLE SECURITIES (Schedule of AFS Marketable Debt Securities) (Details) - USD ($)
$ in Thousands
Sep. 30, 2023
Dec. 31, 2022
Available-for-sale - matures within one year, Amortized cost $ 486,236 $ 246,327
Available-for-sale - matures within one year, Gross unrealized gains 227 0
Available-for-sale - matures within one year, Gross unrealized losses (9,188) (5,210)
Available-for-sale - matures within one year, Fair value 477,275 241,117
Available-for-sale - matures after one year, Amortized cost 447,699 672,488
Available-for-sale - matures after one year, Gross unrealized gains 49 80
Available-for-sale - matures after one year, Gross unrealized losses (11,609) (27,077)
Available-for-sale - matures after one year, Fair value 436,139 645,491
Amortized cost 933,935 918,815
Gross unrealized gains 276 80
Gross unrealized losses (20,797) (32,287)
Fair value 913,414 886,608
Corporate bonds [Member]    
Available-for-sale - matures within one year, Amortized cost 449,162 222,482
Available-for-sale - matures within one year, Gross unrealized gains 227 0
Available-for-sale - matures within one year, Gross unrealized losses (8,838) (4,657)
Available-for-sale - matures within one year, Fair value 440,551 217,825
Available-for-sale - matures after one year, Amortized cost 400,408 657,238
Available-for-sale - matures after one year, Gross unrealized gains 49 80
Available-for-sale - matures after one year, Gross unrealized losses (10,950) (26,460)
Available-for-sale - matures after one year, Fair value 389,507 630,858
US Treasury Securities [Member]    
Available-for-sale - matures within one year, Amortized cost 27,951 15,963
Available-for-sale - matures within one year, Gross unrealized gains 0 0
Available-for-sale - matures within one year, Gross unrealized losses (200) (284)
Available-for-sale - matures within one year, Fair value 27,751 15,679
Available-for-sale - matures after one year, Amortized cost 2,413 9,939
Available-for-sale - matures after one year, Gross unrealized gains 0 0
Available-for-sale - matures after one year, Gross unrealized losses (43) (261)
Available-for-sale - matures after one year, Fair value 2,370 9,678
U.S. Government agency securities [Member]    
Available-for-sale - matures after one year, Amortized cost 42,477  
Available-for-sale - matures after one year, Gross unrealized gains 0  
Available-for-sale - matures after one year, Gross unrealized losses 493  
Available-for-sale - matures after one year, Fair value 41,984  
Non - U.S. Government securities [Member]    
Available-for-sale - matures within one year, Amortized cost 9,123 7,882
Available-for-sale - matures within one year, Gross unrealized gains 0 0
Available-for-sale - matures within one year, Gross unrealized losses (150) (269)
Available-for-sale - matures within one year, Fair value 8,973 7,613
Available-for-sale - matures after one year, Amortized cost 2,401 5,311
Available-for-sale - matures after one year, Gross unrealized gains 0 0
Available-for-sale - matures after one year, Gross unrealized losses (123) (356)
Available-for-sale - matures after one year, Fair value $ 2,278 $ 4,955