Business Segment, Geographic Area, Product Information and Significant Customer Information - Reconciliation of Segment Assets to Consolidated Total Assets (Detail) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Segment Reporting, Asset Reconciling Item [Line Items]
Total segment assets	$ 1,019.3	$ 894.1
Cash and cash equivalents	966.3	608.3
Other current assets	85.3	74.3
Property, plant and equipment, net	325.3	284.3
Right-of-use assets	184.3	184.4
Other assets and long-term assets	73.0	45.6
Consolidated total assets	4,540.3	3,903.8
Segment Reconciling Items [Member]
Segment Reporting, Asset Reconciling Item [Line Items]
Cash and cash equivalents	1,042.7	836.0
Other current assets	85.3	74.3
Property, plant and equipment, net	325.3	284.3
Right-of-use assets	184.3	184.4
Goodwill and intangible assets, net	1,804.2	1,578.6
Other assets and long-term assets	79.2	52.1
Consolidated total assets	$ 4,540.3	$ 3,903.8