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MARKETABLE SECURITIES - Continuous Unrealized Loss Position (Details) - USD ($) $ in Thousands | Mar. 31, 2025 | Jun. 30, 2024
--- | --- | ---
Debt Securities, Available-for-sale [Line Items] |  |
Less than 12 months, fair value | $ 324,886 | $ 897,988
Less than 12 months, gross unrealized losses | (453) | (2,200)
12 months or greater, fair value | 53,954 | 295,809
12 months or greater, gross unrealized losses | (143) | (3,676)
Fair Value | 378,840 | 1,193,797
Gross Unrealized Losses | (596) | (5,876)
Corporate debt securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Less than 12 months, fair value | 116,450 | 355,882
Less than 12 months, gross unrealized losses | (83) | (942)
12 months or greater, fair value | 13,499 | 100,957
12 months or greater, gross unrealized losses | (15) | (1,076)
Fair Value | 129,949 | 456,839
Gross Unrealized Losses | (98) | (2,018)
Municipal securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Less than 12 months, fair value | 7,937 | 17,364
Less than 12 months, gross unrealized losses | (10) | (81)
12 months or greater, fair value | 2,012 | 10,788
12 months or greater, gross unrealized losses | (3) | (116)
Fair Value | 9,949 | 28,152
Gross Unrealized Losses | (13) | (197)
U.S. Government agency securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Less than 12 months, fair value | 25,326 | 58,598
Less than 12 months, gross unrealized losses | (54) | (137)
12 months or greater, fair value | 0 | 17,197
12 months or greater, gross unrealized losses | 0 | (116)
Fair Value | 25,326 | 75,795
Gross Unrealized Losses | (54) | (253)
U.S. Treasury securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Less than 12 months, fair value | 175,173 | 466,144
Less than 12 months, gross unrealized losses | (306) | (1,040)
12 months or greater, fair value | 38,443 | 166,867
12 months or greater, gross unrealized losses | (125) | (2,368)
Fair Value | 213,616 | 633,011
Gross Unrealized Losses | $ (431) | $ (3,408)

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