Derivatives and Fair Value Measurements - Financial Instruments Measured on Recurring Basis (Details) - Fair Value, Measurements, Recurring - USD ($) $ in Millions	Sep. 30, 2026	Dec. 31, 2025
Derivative [Line Items]
Total net assets	$ (14.2)	$ 2.7
Level 1
Derivative [Line Items]
Total net assets	0.0	0.0
Level 2
Derivative [Line Items]
Total net assets	(14.2)	2.7
Level 3
Derivative [Line Items]
Total net assets	0.0	0.0
Foreign Exchange Contract [Member]
Derivative [Line Items]
Total net assets	(0.7)	2.7
Foreign Exchange Contract [Member] \| Level 1
Derivative [Line Items]
Total net assets	0.0	0.0
Foreign Exchange Contract [Member] \| Level 2
Derivative [Line Items]
Total net assets	(0.7)	2.7
Foreign Exchange Contract [Member] \| Level 3
Derivative [Line Items]
Total net assets	0.0	$ 0.0
Conversion option contract
Derivative [Line Items]
Total net assets	(13.5)
Conversion option contract \| Level 1
Derivative [Line Items]
Total net assets	0.0
Conversion option contract \| Level 2
Derivative [Line Items]
Total net assets	(13.5)
Conversion option contract \| Level 3
Derivative [Line Items]
Total net assets	$ 0.0