Debt and Borrowings - Convertible Senior Notes (Details) $ / shares in Units, shares in Millions					6 Months Ended
	Dec. 01, 2025 USD ($)	Dec. 06, 2024 USD ($) Tradingday $ / shares shares	Sep. 24, 2021 USD ($)	Nov. 30, 2020 USD ($)	Dec. 31, 2025 USD ($)	Dec. 31, 2024 USD ($)	Jun. 30, 2025 USD ($)	Jun. 30, 2024 USD ($)
Debt Instrument [Line Items]
Proceeds from issuance of convertible senior notes					$ 0	$ 1,400,000,000
Debt issuance costs					0	23,100,000
Aggregate cash repurchase price					$ 33,463,000	$ 539,403,000
2030 Notes, principal
Debt Instrument [Line Items]
Debt instrument, aggregate principal amount		$ 1,400,000,000
Debt stated percentage		0.00%			0.00%
Proceeds from issuance of convertible senior notes		$ 1,380,000,000
Debt issuance costs		$ 24,000,000.0
Debt initial conversion rate		0.0083718
Initial conversion price per share (dollars per share) | $ / shares		$ 119.45
Notes issued upon conversion (in shares) | shares		11.7
Redemption period, start date		Dec. 01, 2027
Debt instrument threshold percentage of conversion price (in shares)		130.00%
Number of trading days for conversion of notes | Tradingday		20
Number of consecutive trading days for conversion of notes | Tradingday		30
Redemption price percentage of principal amount redeemed (in shares)		100.00%
Sinking fund		$ 0
Debt convertible date		Jan. 01, 2030
Debt instrument denomination of principal amount for conversion into common stock		$ 1,000
Number of business day period for conversion of notes		5 years
Number of consecutive trading day period in consideration for conversion of notes		5 years
Threshold percentage of stock price trigger in measurement period		98.00%
Debt conversion rate in make whole		2.9301
Debt conversion price per share in make whole (dollars per share) | $ / shares		$ 88.48
Debt default threshold principal amount percentage		100.00%
2027 Notes, principal
Debt Instrument [Line Items]
Debt instrument, aggregate principal amount			$ 575,000,000.0
Debt stated percentage			0.00%		0.00%
Proceeds from issuance of convertible senior notes			$ 560,100,000
Debt issuance costs			$ 14,900,000
Repurchased face amount		$ 451,500,000
Aggregate cash repurchase price		408,600,000
Carrying amount		446,500,000
Unamortized issuance cost		5,000,000.0
Gain on extinguishment of debt		37,900,000
2025 Notes, principal
Debt Instrument [Line Items]
Debt instrument, aggregate principal amount				$ 1,150,000,000
Debt stated percentage				0.00%	0.00%
Proceeds from issuance of convertible senior notes				$ 1,130,000,000
Debt issuance costs				$ 20,600,000
Repurchased face amount		133,900,000						$ 982,700,000
Aggregate cash repurchase price		130,800,000
Carrying amount		133,400,000
Unamortized issuance cost		500,000
Gain on extinguishment of debt		$ 2,600,000
Repayments of senior debt	$ 33,500,000
Long term debt, gross					$ 1,500,000,000		$ 1,600,000,000