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MARKETABLE SECURITIES - Continuous Unrealized Loss Position (Details) - USD ($) $ in Thousands | Mar. 31, 2023 | Jun. 30, 2022
--- | --- | ---
Debt Securities, Available-for-sale [Line Items] |  |
Less than 12 Months, Fair Value | $ 351,727 |
Less than 12 Months, Gross Unrealized Losses | (3,826) |
12 Months or Greater, Fair Value | 492,547 |
12 Months or Greater, Gross Unrealized Losses | (11,169) |
Fair Value | 844,274 | $ 917,488
Gross Unrealized Losses | (14,995) | (19,778)
Corporate debt securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Less than 12 Months, Fair Value | 163,334 |
Less than 12 Months, Gross Unrealized Losses | (1,687) |
12 Months or Greater, Fair Value | 221,831 |
12 Months or Greater, Gross Unrealized Losses | (4,335) |
Fair Value | 385,165 | 458,699
Gross Unrealized Losses | (6,022) | (8,915)
Municipal securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Less than 12 Months, Fair Value | 8,711 |
Less than 12 Months, Gross Unrealized Losses | (69) |
12 Months or Greater, Fair Value | 27,173 |
12 Months or Greater, Gross Unrealized Losses | (707) |
Fair Value | 35,884 | 58,722
Gross Unrealized Losses | (776) | (1,249)
Sovereign securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Less than 12 Months, Fair Value | 3,019 |
Less than 12 Months, Gross Unrealized Losses | 0 |
12 Months or Greater, Fair Value | 1,997 |
12 Months or Greater, Gross Unrealized Losses | (5) |
Fair Value | 5,016 | 2,963
Gross Unrealized Losses | (5) | (53)
U.S. Government agency securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Less than 12 Months, Fair Value | 38,897 |
Less than 12 Months, Gross Unrealized Losses | (125) |
12 Months or Greater, Fair Value | 34,650 |
12 Months or Greater, Gross Unrealized Losses | (705) |
Fair Value | 73,547 | 60,285
Gross Unrealized Losses | (830) | (1,183)
U.S. Treasury securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Less than 12 Months, Fair Value | 137,766 |
Less than 12 Months, Gross Unrealized Losses | (1,945) |
12 Months or Greater, Fair Value | 206,896 |
12 Months or Greater, Gross Unrealized Losses | (5,417) |
Fair Value | 344,662 | 336,819
Gross Unrealized Losses | $ (7,362) | $ (8,378)

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