Debt - Other (Details) - USD ($) $ in Millions		12 Months Ended
	Sep. 10, 2024	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Debt
Total		$ 1,151.1	$ 1,151.4
Weighted average interest rate (as a percent)		3.02%	3.02%
Principal payments on long-term debt		$ (663.3)	$ (506.1)	$ (0.3)
Aggregate maturities of long-term debt for each of the next five years and thereafter
2025		400.3
2026		0.4
2027		0.4
2028		0.0
2029		0.0
Thereafter		750.0
Total		$ 1,151.1	1,151.4
Unsecured revolving credit facility maturing September 10, 2029
Debt
Maximum borrowing capacity	$ 1,500.0
Debt term	5 years
Commitment fee on unused portion of revolving credit facility (as a percent)		0.10%
Letters of credit outstanding		$ 1.1	1.4
Lines of credit		$ 0.0	0.0
Unsecured revolving credit facility maturing September 10, 2029 | SOFR
Debt
Variable interest rate		SOFR
Interest rate added to base (as a percent)		1.00%
Unsecured revolving credit facility maturing September 10, 2029 | Bank prime rate
Debt
Variable interest rate		prime rate
Senior Unsecured Notes - Publicly Traded
Debt
Percentage of principal amount at which the notes may be required to be repurchased in event of a change of control and a downgrade of the entity's credit rating		101.00%
Other separate revolving credit facilities | Asia
Debt
Maximum borrowing capacity		$ 7.5
Lines of credit		0.0	0.0
IRB
Debt
Total		1.1	1.4
Aggregate maturities of long-term debt for each of the next five years and thereafter
Total		1.1	1.4
Letter of Credit | Standby Facility
Debt
Maximum borrowing capacity		50.0	50.0
Letters of credit outstanding		$ 29.2	$ 40.9