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Goodwill - Changes in Carrying Amount of Goodwill (Detail) - USD ($)	3 Months Ended	6 Months Ended
	Dec. 31, 2018	Jun. 30, 2019
Goodwill [Roll Forward]
Beginning Balance		$ 439,452,000
Currency impacts/Other		180,000
Ending Balance	$ 439,452,000	439,632,000
Mobile Solutions
Goodwill [Roll Forward]
Beginning Balance		0
Currency impacts/Other		0
Ending Balance	0	0
Power Solutions
Goodwill [Roll Forward]
Beginning Balance		94,505,000
Currency impacts/Other		196,000
Ending Balance	94,505,000	94,701,000
Goodwill, impairment loss	109,100,000	0
Life Sciences
Goodwill [Roll Forward]
Beginning Balance		344,947,000
Currency impacts/Other		(16,000)
Ending Balance	$ 344,947,000	$ 344,931,000

X

- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
-SubTopic 20
-Section 45
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=77989000&loc=SL49117168-202975

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-SubTopic 20
-Section 45
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X

- Definition

Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-Topic 350
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=108376223&loc=d3e13816-109267

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- Definition

Amount of loss from the write-down of an asset representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
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-Topic 350
-SubTopic 20
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-Publisher FASB
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-Topic 230
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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

+ References

No definition available.

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