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Financial Instruments and Fair Value Measurements - Narrative (Details) - USD ($) $ in Thousands	12 Months Ended
	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