Discontinued Operations - Summary of Significant Non-Cash Items of Discontinued Operations (Detail) - Spin-off - Veoneer, Inc. - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Depreciation	$ 44.8	$ 82.9	$ 69.7
Amortization of intangible assets	10.5	35.8	33.2
Capital expenditures	71.1	109.6	100.9
Acquisition in affiliate, net	71.0	123.9	$ 227.4
Undistributed loss from equity method investment	29.9	30.7
M/A-COM
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Earn-out adjustment	$ (14.0)	$ (12.7)