Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130543-203045

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130545-203045

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Period Type:	duration

Business Segment, Geographic Area and Product Information - Worldwide Net Revenue for Each Group of Products (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Revenue from External Customer [Line Items]
Net revenues	$ 462,451	$ 487,152	$ 1,400,122	$ 1,614,567
Advanced Manufacturing Components [Member]
Revenue from External Customer [Line Items]
Net revenues	353,639	426,255	1,084,107	1,432,931
Global Service [Member]
Revenue from External Customer [Line Items]
Net revenues	76,278	$ 60,897	215,260	$ 181,636
Advanced Manufacturing Systems [Member]
Revenue from External Customer [Line Items]
Net revenues	$ 32,534		$ 100,755