Discontinued Operations - Summary Cash Inflows (Outflows) Related to Ongoing Activities of Discontinued Operations (Detail) - Discontinued Operations [Member] - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2026	Jun. 30, 2025
Amphenol [Member] \| Transition Service Agreement Fees [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Discontinued operation, cash inflows (outflows)	$ (5.7)	$ 10.6
Amphenol [Member] \| Manufacturing Supply Agreement Inventory Sales [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Discontinued operation, cash inflows (outflows)	8.1	8.1
Vantiva [Member] \| Transition Service Agreement Fees [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Discontinued operation, cash inflows (outflows)	0.0	3.5
Vantiva [Member] \| Supply Agreement Inventory Sales [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Discontinued operation, cash inflows (outflows)	$ 0.0	$ 8.5