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Business Segment, Geographic Area, Product and Significant Customer Information - Schedule of Capital Expenditures, Depreciation and Amortization Expense by Reportable Segment (Detail) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2015	Sep. 30, 2014	Sep. 30, 2015	Sep. 30, 2014
Segment Reporting Information [Line Items]
Capital expenditures	$ 3,497	$ 2,107	$ 8,831	$ 9,362
Depreciation and amortization	5,524	5,792	16,606	14,757
Operating Segments [Member] | Advanced Manufacturing Capital Equipment [Member]
Segment Reporting Information [Line Items]
Capital expenditures	2,169	1,239	5,313	4,944
Depreciation and amortization	4,240	4,403	12,792	10,857
Operating Segments [Member] | Global Service [Member]
Segment Reporting Information [Line Items]
Capital expenditures	265	198	550	787
Depreciation and amortization	249	280	759	819
Operating Segments [Member] | Asia Region Sales [Member]
Segment Reporting Information [Line Items]
Capital expenditures	256	229	349	421
Depreciation and amortization	86	101	259	301
Operating Segments [Member] | Other [Member]
Segment Reporting Information [Line Items]
Capital expenditures	150	63	386	1,600
Depreciation and amortization	268	307	846	766
Corporate and Eliminations [Member]
Segment Reporting Information [Line Items]
Capital expenditures	657	378	2,233	1,610
Depreciation and amortization	$ 681	$ 701	$ 1,950	$ 2,014

X

- Definition

The current period expense charged against earnings on long-lived, physical assets not used in production, and which are not intended for resale, to allocate or recognize the cost of such assets over their useful lives; or to record the reduction in book value of an intangible asset over the benefit period of such asset; or to reflect consumption during the period of an asset that is not used in production.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



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The cash outflow associated with the acquisition of long-lived, physical assets that are used in the normal conduct of business to produce goods and services and not intended for resale; includes cash outflows to pay for construction of self-constructed assets.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef



-Publisher FASB



-Name Accounting Standards Codification



-Glossary Investing Activities



-URI http://asc.fasb.org/extlink&oid=6516133



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