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Revenue from Contracts with Customers - (Tables)

12 Months Ended

Dec. 31, 2019

Revenue from Contract with Customer [Abstract]

Schedule of Deferred Revenue and Customer Advances by Arrangement

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

		Years Ended December 31,
		2019				2018
Beginning balance, January 1(1)		$	17,474			$	27,800
Deferred revenue and customer advances assumed in ESI Merger			4,629				—
Additions to deferred revenue and customer advances			77,727				73,171
Amount of deferred revenue and customer advances recognized in income			(75,046	)			(83,497	)
Ending balance, December 31(2)		$	24,784			$	17,474

(1) Beginning deferred revenue and customer advances as of January 1, 2019 included $8,134 of current deferred revenue, $3,228 of long-term deferred revenue and $6,112 of current customer advances.

(2) Ending deferred revenue and customer advances as of December 31, 2019 included  $12,441 of current deferred revenue, $3,290 of long-term deferred revenue and $9,053 of current customer advances.

Summary of Revenue from Contracts with Customers

The following table summarizes revenue from contracts with customers:

		Year Ended December 31, 2019
		Vacuum & Analysis				Light & Motion				Equipment & Solutions				Total
Net revenues:
Products		$	819,078			$	663,730			$	128,489			$	1,611,297
Services			171,445				61,840				55,191				288,476
Total net revenues		$	990,523			$	725,570			$	183,680			$	1,899,773

		Year Ended December 31, 2018
		Vacuum & Analysis				Light & Motion				Equipment & Solutions				Total
Net revenues:
Products		$	1,080,343			$	754,859			$	—			$	1,835,202
Services			180,519				59,387				—				239,906
Total net revenues		$	1,260,862			$	814,246			$	—			$	2,075,108

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- Definition

Tabular disclosure of contract balances and changes in contract balances.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 606
-SubTopic 10
-Section 50
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=118956577&loc=SL49130551-203045

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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/2009/role/commonPracticeRef
-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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