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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.

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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.

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Goodwill - Changes in Carrying Amount of Goodwill (Detail) - USD ($) $ in Thousands	3 Months Ended			6 Months Ended
	Jun. 30, 2020	Mar. 31, 2020	Jun. 30, 2019	Jun. 30, 2020	Jun. 30, 2019
Goodwill [Roll Forward]
Beginning Balance		$ 439,095		$ 439,095
Currency impact and other				(2,929)
Goodwill, impairment loss	$ 0		$ 0	(239,699)	$ 0
Ending Balance	196,467			196,467
Life Sciences
Goodwill [Roll Forward]
Beginning Balance		344,316		344,316
Currency impact and other				(1,092)
Goodwill, impairment loss		(146,800)		(146,757)
Ending Balance	196,467			196,467
Power Solutions
Goodwill [Roll Forward]
Beginning Balance		94,779		94,779
Currency impact and other				(1,837)
Goodwill, impairment loss		$ (92,900)		(92,942)
Ending Balance	$ 0			$ 0