The Company has historically recorded the revenue and related cost of revenue for the sale of its spare parts within Products in its Statements of Operations for the Vacuum & Analysis segment. The Company has now determined that these items are better presented within revenue and related cost of revenue within Services for the Vacuum & Analysis segment in its Statements of Operations to align with the current manner in which the Company operates its services business, and has elected to reclassify these amounts in previously issued financial statements as shown below. This change in presentation has no impact on total revenue or total cost of revenue.


	Three Months Ended June 30, 2017
	As previously reported		Adjustment			As reclassified
Net revenues:
Products	$	431,950	$	(5,633	)	$	426,317
Services		48,807		5,633			54,440

Total net revenues		480,757		—			480,757

Cost of revenues:
Cost of products		229,304		1,402			230,706
Cost of services		31,870		(1,402	)		30,468

Total cost of revenues	$	261,174	$	—		$	261,174


	Six Months Ended June 30, 2017
	As previously reported		Adjustment			As reclassified
Net revenues:
Products	$	824,872	$	(10,617	)	$	814,255
Services		93,038		10,617			103,655

Total net revenues		917,910		—			917,910

Cost of revenues:
Cost of products		434,364		2,176			436,540
Cost of services		58,416		(2,176	)		56,240

Total cost of revenues	$	492,780	$	—		$	492,780