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MARKETABLE SECURITIES - Amortized Cost and Fair Value (Details) - USD ($) $ in Thousands | Jun. 30, 2025 | Jun. 30, 2024
--- | --- | ---
Debt Securities, Available-for-Sale [Line Items] |  |
Available-for-sale securities, fair value | $ 2,391,753 |
Money market funds and other | 1,531,022 | $ 1,585,832
Subtotal, amortized cost | 3,547,260 | 3,263,058
Subtotal, gross unrealized gains | 7,830 | 1,221
Subtotal, gross unrealized losses | (454) | (5,876)
Subtotal, fair value | 3,554,636 | 3,258,403
Add: Time deposits | 478,191 | 932,436
Cash equivalents, amortized cost | 1,641,074 | 1,689,540
Cash equivalents, gross unrealized gains | 1 | 0
Cash equivalents, gross unrealized losses | (1) | (1)
Cash equivalents, fair value | 1,641,074 | 1,689,539
Total | 2,384,377 | 2,505,954
Marketable securities, gross unrealized gains | 7,829 | 1,221
Marketable securities, gross unrealized losses | (453) | (5,875)
Available-for-sale marketable securities, Fair Value | 2,391,753 | 2,501,300
Corporate debt securities |  |
Debt Securities, Available-for-Sale [Line Items] |  |
Amortized Cost | 957,256 | 775,277
Available-for-sale securities, gross unrealized gains | 4,456 | 973
Available-for-sale securities, gross unrealized losses | (66) | (2,018)
Available-for-sale securities, fair value | 961,646 | 774,232
Municipal securities |  |
Debt Securities, Available-for-Sale [Line Items] |  |
Amortized Cost | 57,445 | 41,343
Available-for-sale securities, gross unrealized gains | 129 | 13
Available-for-sale securities, gross unrealized losses | (1) | (197)
Available-for-sale securities, fair value | 57,573 | 41,159
U.S. Government agency securities |  |
Debt Securities, Available-for-Sale [Line Items] |  |
Amortized Cost | 116,436 | 106,101
Available-for-sale securities, gross unrealized gains | 458 | 26
Available-for-sale securities, gross unrealized losses | (58) | (253)
Available-for-sale securities, fair value | 116,836 | 105,874
U.S. Treasury securities |  |
Debt Securities, Available-for-Sale [Line Items] |  |
Amortized Cost | 885,101 | 754,505
Available-for-sale securities, gross unrealized gains | 2,787 | 209
Available-for-sale securities, gross unrealized losses | (329) | (3,408)
Available-for-sale securities, fair value | $ 887,559 | $ 751,306

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