Goodwill - Changes in Carrying Amount of Goodwill (Detail) - USD ($) $ in Thousands	3 Months Ended
Mar. 31, 2020	Mar. 31, 2019
Goodwill [Roll Forward]
Beginning Balance	$ 439,095
Currency impact and other	(3,115)
Goodwill, impairment loss	239,699	$ 0
Ending Balance	196,281
Power Solutions
Goodwill [Roll Forward]
Beginning Balance	94,779
Currency impact and other	(1,837)
Goodwill, impairment loss	(92,942)
Ending Balance	0
Life Sciences
Goodwill [Roll Forward]
Beginning Balance	344,316
Currency impact and other	(1,278)
Goodwill, impairment loss	(146,757)
Ending Balance	$ 196,281

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.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 350
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-Section 45
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- 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

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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
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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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