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Intangibles - Intangible Assets Other Than Goodwill and Trade Names (Detail) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Finite Lived Intangible Assets [Line Items]
Intangible assets, net of accumulated amortization	$ 3,321.1	$ 3,480.9
Intellectual property, patents, non-compete and other intangibles
Finite Lived Intangible Assets [Line Items]
Intangible assets, net of accumulated amortization	1,058.4	1,108.9
Intangible assets, accumulated amortization	173.1	123.8
Backlog
Finite Lived Intangible Assets [Line Items]
Intangible assets, net of accumulated amortization	1,277.4	1,342.1
Intangible assets, accumulated amortization	149.2	92.0
Customer relationships
Finite Lived Intangible Assets [Line Items]
Intangible assets, net of accumulated amortization	985.3	1,029.9
Intangible assets, accumulated amortization	$ 236.5	$ 212.9

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- Definition

Accumulated amount of amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=66006027&loc=d3e16323-109275

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- Definition

Amount after amortization of assets, excluding financial assets and goodwill, lacking physical substance with a finite life.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 926
-SubTopic 20
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=120154696&loc=d3e54445-107959

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