Goodwill and Purchased Intangible Assets - Schedule of Changes in Goodwill (Details) $ in Millions	3 Months Ended
	Mar. 31, 2023 USD ($)
Changes in goodwill
Net goodwill at the beginning of the period	$ 1,042.0
Foreign currency translation	1.7
Acquisition	85.5
Net goodwill at the end of the period	1,129.2
Access
Changes in goodwill
Net goodwill at the beginning of the period	865.8
Foreign currency translation	1.7
Acquisition	85.5
Net goodwill at the end of the period	953.0
Defense
Changes in goodwill
Net goodwill at the beginning of the period	44.4
Net goodwill at the end of the period	44.4
Vocational
Changes in goodwill
Net goodwill at the beginning of the period	131.8
Net goodwill at the end of the period	$ 131.8