Financing Agreements - Schedule of borrowings (Details)	Jun. 30, 2024 USD ($)	Jun. 30, 2024 EUR (€)	Feb. 14, 2024 USD ($)	Sep. 30, 2023 USD ($)	Jun. 21, 2023 USD ($)	Jun. 08, 2022 USD ($)	Mar. 03, 2021 USD ($)	Jun. 16, 2020 USD ($)	Sep. 25, 2019 USD ($)
Debt Instrument [Line Items]
Total debt	$ 2,088,800,000			$ 2,010,100,000
Current portion of long-term debt	19,900,000			19,700,000
Long-term debt	2,068,900,000			1,990,400,000
$1,000 revolving credit facility (excluding outstanding letters of credit)
Debt Instrument [Line Items]
Total debt	498,600,000			505,100,000
$200 term loan
Debt Instrument [Line Items]
Total debt	185,000,000.0			192,500,000
Debt instrument, face amount	200,000,000
Term Loan | Term Loan 225 Million
Debt Instrument [Line Items]
Total debt	190,400,000			195,000,000.0
Debt instrument, face amount | €		€ 185,000,000
Term Loan | $200 term loan
Debt Instrument [Line Items]
Debt instrument, face amount						$ 200,000,000
Term Loan | Euro Term Loan
Debt Instrument [Line Items]
Debt instrument, face amount					$ 185,000,000
$400 senior unsecured notes (2)
Debt Instrument [Line Items]
Total debt	0			398,000,000.0
Debt issuance costs, net				2,000,000.0
Senior notes
Debt Instrument [Line Items]
Total debt	373,400,000			372,900,000
Debt issuance costs, net	1,400,000			1,800,000
Senior notes | $500 senior unsecured notes
Debt Instrument [Line Items]
Total debt	494,400,000			0
Debt issuance costs, net	5,600,000
Debt instrument, face amount			$ 500,000,000
Senior notes | $400 senior unsecured notes
Debt Instrument [Line Items]
Debt instrument, face amount								$ 400,000,000
Senior notes | $500 senior unsecured notes
Debt Instrument [Line Items]
Debt instrument, face amount			$ 500,000,000
Senior notes | $375 senior unsecured notes
Debt Instrument [Line Items]
Debt instrument, face amount									$ 375,000,000
Senior notes | $350 senior unsecured notes
Debt Instrument [Line Items]
Debt instrument, face amount							$ 350,000,000
$350 senior unsecured notes (4)
Debt Instrument [Line Items]
Total debt	347,000,000.0			346,600,000
Debt issuance costs, net	$ 3,000,000.0			$ 3,400,000
Revolving Credit Facility | $1,000 revolving credit facility
Debt Instrument [Line Items]
Debt instrument, face amount						$ 1,000,000,000