Long-term Debt - Narratives (Details) - USD ($)	Mar. 12, 2026	Mar. 09, 2026	Nov. 25, 2025	Mar. 31, 2026	Jun. 30, 2025
Debt Instrument [Line Items]
Principal amount of long-term debt				$ 5,210,813,000	$ 2,942,625,000
Debt discount and debt issuance costs				30,236,000	24,685,000
Interest rate swap agreements | Cash flow hedging
Debt Instrument [Line Items]
Aggregate notional amount				900,000,000.0
Term Loan B-2 | Term loans | ARKA Group L.P
Debt Instrument [Line Items]
Debt instrument, term		7 years
Aggregate principal amount		$ 800,000,000.0
Term loan B principal payment		2,000,000.0
Debt discount and debt issuance costs		$ 9,100,000
2033 Notes-2 | Senior notes
Debt Instrument [Line Items]
Principal amount of long-term debt				$ 500,000,000	0
Aggregate principal amount	$ 500,000,000.0
Debt instrument, interest rate (as percent)	6.375%			6.38%
Proceeds from issuance of debt	$ 516,500,000
Bank credit facility | Bank credit facility | Line of credit
Debt Instrument [Line Items]
Credit facility maximum borrowing capacity			$ 3,250,000,000
Revolving credit facility | Line of credit
Debt Instrument [Line Items]
Principal amount of long-term debt				$ 928,000,000	124,500,000
Debt instrument, interest rate (as percent)				5.32%
Revolving credit facility | Bank credit facility | Line of credit
Debt Instrument [Line Items]
Credit facility maximum borrowing capacity			2,000,000,000
Principal amount of long-term debt				$ 928,000,000.0
Term loans | Line of credit
Debt Instrument [Line Items]
Debt instrument, periodic payment			15,600,000
Principal amount of long-term debt				$ 1,242,188,000	1,071,875,000
Debt instrument, interest rate (as percent)				4.92%
Term loans | Bank credit facility | Line of credit
Debt Instrument [Line Items]
Credit facility maximum borrowing capacity			$ 1,250,000,000
Debt instrument, term			5 years
Debt instrument, periodic payment			$ 7,800,000
Term loans | Term Loan B-2 | Line of credit
Debt Instrument [Line Items]
Principal amount of long-term debt				$ 800,000,000	$ 0
Debt instrument, interest rate (as percent)				5.42%
Same-day swing line loan, revolving credit sub-facility | Bank credit facility | Line of credit
Debt Instrument [Line Items]
Credit facility maximum borrowing capacity			150,000,000.0
Principal amount of long-term debt				$ 0
Stand-y letters of credit, revolving credit sub-facility | Bank credit facility | Line of credit
Debt Instrument [Line Items]
Credit facility maximum borrowing capacity			$ 25,000,000.0
Principal amount of long-term debt				$ 0