Discontinued Operations - Summary of Significant Non-Cash Items of Discontinued Operations (Detail) - Spin-off - Veoneer, Inc. $ in Millions	3 Months Ended
Mar. 31, 2018 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Depreciation	$ 22.6
Amortization of intangible assets	5.3
Capital expenditures	30.9
Acquisition in affiliate, net	71.0
Undistributed loss from equity method investment	14.0
M/A-COM
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Earn-out adjustment	$ (14.0)

Amount of acquisition of businesses and interest in affiliates, net attributable to discontinued operations.

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Amount of amortization of intangible assets attributable to discontinued operations.

+ References

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Amount of depreciation attributable to discontinued operations.

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Amount of earn out adjustment attributable to discontinued operations.

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Amount of undistributed earnings from equity method investments, net of dividends attributable to discontinued operations.

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Amount of capital expenditure attributable to discontinued operations.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 5B
-Subparagraph (c)(2)
-URI http://asc.fasb.org/extlink&oid=109222650&loc=SL51721673-107760

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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