Intangible Assets, Net - Summary of Carrying Amount of Intangible Assets by Segment (Detail) $ in Thousands	6 Months Ended
	Jun. 30, 2018 USD ($)
Finite-Lived Intangible Assets [Line Items]
Beginning Balance	$ 237,702
Amortization	(12,985)
Currency impacts	34
Intangible assets acquired in acquisition	169,913
Ending balance	394,664
Mobile Solutions [Member]
Finite-Lived Intangible Assets [Line Items]
Beginning Balance	39,446
Amortization	(1,770)
Currency impacts	(18)
Intangible assets acquired in acquisition	0
Ending balance	37,658
Power Solutions [Member]
Finite-Lived Intangible Assets [Line Items]
Beginning Balance	105,030
Amortization	(5,725)
Currency impacts	52
Intangible assets acquired in acquisition	0
Ending balance	99,357
Life Sciences [Member]
Finite-Lived Intangible Assets [Line Items]
Beginning Balance	93,226
Amortization	(5,490)
Currency impacts	0
Intangible assets acquired in acquisition	169,913
Ending balance	$ 257,649