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Financial Instruments and Fair Value Measurements - Narrative (Details) - USD ($) $ in Thousands | 12 Months Ended
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Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2023
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Total lines of credit and term loans | $ 112,475 | $ 476,429 |
Convertible Senior Notes Due 2029 | Level 2 | Convertible Notes Payable |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair value of company`s convertible debt | 1,801,900 | 1,734,600 |
Convertible Senior Notes Due 2028 | Level 2 | Convertible Notes Payable |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair value of company`s convertible debt | 818,500 |  |
Convertible Senior Notes Due 2030 | Level 2 | Convertible Notes Payable |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Fair value of company`s convertible debt | 2,576,600 |  |
Fair Value Measurements, Recurring | Investment in marketable equity security | Level 1 |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Investments | 6,200 |  |
Unrealized gain (loss) on investments | 2,600 | (1,300) |
Fair Value Measurements, Recurring | Auction rate security | Level 3 |  |  |
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] |  |  |
Unrealized gain (loss) on investments | 0 | 0 | $ 0
Investments credit loss | $ 0 | $ 0 | $ 0

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