Goodwill and Intangible Assets - Changes in Carrying Amount of Goodwill (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2025	Dec. 31, 2024
Goodwill [Roll Forward]
Beginning balance	$ 218.1	$ 220.7
Additions	1.4	9.4
Beginning balance, accumulated impairment losses	(32.5)	(33.3)
Beginning balance, net	185.6	187.4
Foreign currency fluctuations	24.4	(12.0)
Foreign currency fluctuations, accumulated impairment losses	(2.8)	0.8
Foreign currency fluctuations, net	21.6	(11.2)
Ending balance	243.9	218.1
Ending balance, accumulated impairment losses	(35.3)	(32.5)
Ending balance, net	$ 208.6	$ 185.6