Revenue from Contracts with Customers (Tables)

9 Months Ended

Sep. 30, 2019

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


	Nine Months Ended September 30, 2019
Beginning balance, January 1 (1)	$	17,474
Deferred revenue and customer advances assumed in ESI Merger		4,629
Additions to deferred revenue and customer advances		41,922
Amount of deferred revenue and customer advances recognized in income		(38,787	)

Ending balance, September 30 (2)	$	25,238

(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 as of September 30, 2019 included $

14,161

of current deferred revenue, $

2,874

of long-term deferred revenue and $

8,202

of current customer advances.

The following table summarizes revenue from contracts with customers:


	Three Months Ended September 30, 2019
	Vacuum & Analysis		Light & Motion		Equipment & Solutions		Total
Net revenues:
Products	$	197,203	$	156,436	$	32,534	$	386,173
Services		43,478		16,024		16,776		76,278

Total net revenues	$	240,681	$	172,460	$	49,310	$	462,451


	Three Months Ended September 30, 201 8
	Vacuum & Analysis		Light & Motion		Equipment & Solutions		Total
Net revenues:
Products	$	239,924	$	186,331	$	—	$	426,255
Services		46,114		14,783		—		60,897

Total net revenues	$	286,038	$	201,114	$	—	$	487,152