Goodwill and Purchased Intangible Assets - Schedule of Changes in Goodwill (Details) $ in Millions	6 Months Ended
	Jun. 30, 2025 USD ($)
Changes in goodwill
Net goodwill at the beginning of the period	$ 1,410.1
Impairment	(5.7)
Foreign currency translation	44.8
Net goodwill at the end of the period	1,449.2
Access
Changes in goodwill
Net goodwill at the beginning of the period	1,011.0
Impairment	0.0
Foreign currency translation	44.4
Net goodwill at the end of the period	1,055.4
Vocational
Changes in goodwill
Net goodwill at the beginning of the period	393.4
Impairment	0.0
Foreign currency translation	0.4
Net goodwill at the end of the period	393.8
Corporate and Other
Changes in goodwill
Net goodwill at the beginning of the period	5.7
Impairment	(5.7)
Foreign currency translation	0.0
Net goodwill at the end of the period	$ 0.0