Fair Value Measurements (Details) - USD ($) $ in Millions	Dec. 31, 2025	Dec. 31, 2024
Level 1
Assets, Fair Value Disclosure [Abstract]
Cash, cash equivalents, and restricted cash (Note 13)	$ 415.2	$ 175.6
Discretionary retirement plan (Note 14)	5.6	4.6
Liabilities
Discretionary retirement plan (Note 14)	5.6	4.6
Level 1 | Cross-currency rate swaps
Assets, Fair Value Disclosure [Abstract]
Total assets	0.0	0.0
Liabilities
Total liabilities	0.0	0.0
Level 1 | Interest rate swap
Assets, Fair Value Disclosure [Abstract]
Total assets		0.0
Liabilities
Total liabilities		0.0
Level 2
Assets, Fair Value Disclosure [Abstract]
Cash, cash equivalents, and restricted cash (Note 13)	0.0	0.0
Discretionary retirement plan (Note 14)	1.0	1.0
Liabilities
Discretionary retirement plan (Note 14)	1.0	1.0
Level 2 | Cross-currency rate swaps
Assets, Fair Value Disclosure [Abstract]
Total assets	0.1	0.1
Liabilities
Total liabilities	40.7	8.1
Level 2 | Interest rate swap
Assets, Fair Value Disclosure [Abstract]
Total assets		0.3
Liabilities
Total liabilities		0.1
Level 3
Assets, Fair Value Disclosure [Abstract]
Cash, cash equivalents, and restricted cash (Note 13)	0.0	0.0
Discretionary retirement plan (Note 14)	0.0	0.0
Liabilities
Discretionary retirement plan (Note 14)	0.0	0.0
Level 3 | Cross-currency rate swaps
Assets, Fair Value Disclosure [Abstract]
Total assets	0.0	0.0
Liabilities
Total liabilities	$ 0.0	0.0
Level 3 | Interest rate swap
Assets, Fair Value Disclosure [Abstract]
Total assets		0.0
Liabilities
Total liabilities		$ 0.0