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Revenue from Contracts with Customers (Tables)

3 Months Ended

Mar. 31, 2018

Schedule of Deferred Revenue by Arrangement

A rollforward of the Company’s deferred revenue is as follows:

		Three Months Ended March 31, 2018
Beginning balance, January 1(1)		$	14,448
Amount of deferred revenue recognized in income			(4,757	)
Additions to deferred revenue			7,639
Ending balance, March 31(2)		$	17,330

⁽¹⁾  Beginning deferred revenue as of January 1, 2018 includes $11,322 of current deferred revenue and $3,126 of long-term deferred revenue.

⁽²⁾  Ending deferred revenue as of March 31, 2018 includes $14,003 of current deferred revenue and $3,327 of long-term deferred revenue.

Summary of Revenue from Contracts with Customers

The following table summarizes revenue from contracts with customers:

		Three Months Ended March 31, 2018
		Vacuum & Analysis				Light & Motion				Total
Net revenues:
Products		$	304,336			$	192,341			$	496,677
Services			44,008				13,590				57,598
Total net revenues		$	348,344			$	205,931			$	554,275

		Three Months Ended March 31, 2017
		Vacuum & Analysis				Light & Motion				Total
Net revenues:
Products		$	241,455			$	146,483			$	387,938
Services			36,529				12,686				49,215
Total net revenues		$	277,984			$	159,169			$	437,153

Market Segment [Member]

Summary of Revenue from Contracts with Customers

The following table summarizes revenue from contracts with customers by major market:

		Three Months Ended March 31, 2018
		Vacuum & Analysis				Light & Motion				Total
Net revenues:
Semiconductor		$	275,701			$	37,813			$	313,514
Advanced markets			72,643				168,118				240,761
Total net revenues		$	348,344			$	205,931			$	554,275

		Three Months Ended March 31, 2017
		Vacuum & Analysis				Light & Motion				Total
Net revenues:
Semiconductor		$	218,804			$	29,700			$	248,504
Advanced markets			59,180				129,469				188,649
Total net revenues		$	277,984			$	159,169			$	437,153

X

- Definition

Tabular disclosure of the type of arrangements and the corresponding amounts that comprise the current and noncurrent balance of deferred revenue as of the balance sheet date.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 605
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB Topic 13.A.4(a).Q1)
-URI http://asc.fasb.org/extlink&oid=65893310&loc=d3e214044-122780

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 210
-SubTopic 10
-Section 45
-Paragraph 8
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=82887183&loc=d3e6935-107765

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- Definition

Tabular disclosure of disaggregation of revenue into categories depicting how nature, amount, timing, and uncertainty of revenue and cash flows are affected by economic factor.

+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=82913847&loc=SL49130545-203045

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