Revenue from Contracts with Customers (Tables)

12 Months Ended

Dec. 31, 2020

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:

	2020			2019
Beginning balance, January 1(1)	$	24.8		$	17.5
Deferred revenue and customer advances assumed in ESI Merger		—			4.6
Additions to deferred revenue and customer advances		107.4			77.7
Amount of deferred revenue and customer advances recognized in income		(95.5	)		(75.0	)
Ending balance, December 31(2)	$	36.7		$	24.8

⁽¹⁾ Beginning deferred revenue and customer advances as of January 1, 2020 included $12.4 of current deferred revenue, $3.3 of long-term deferred revenue and $9.1 of current customer advances.

⁽²⁾ Ending deferred revenue and customer advances as of December 31, 2020 included $18.3 of current deferred revenue, $5.6 of long-term deferred revenue and $12.8 of current customer advances.

Summary of Revenue from Contracts with Customers

The following table summarizes revenue from contracts with customers:

	Year Ended December 31, 2020
	Vacuum & Analysis		Light & Motion		Equipment & Solutions		Total
Net revenues:
Products	$	1,222.4	$	621.9	$	170.5	$	2,014.8
Services		183.5		67.7		64.0		315.2
Total net revenues	$	1,405.9	$	689.6	$	234.5	$	2,330.0

	Year Ended December 31, 2019
	Vacuum & Analysis		Light & Motion		Equipment & Solutions		Total
Net revenues:
Products	$	819.1	$	663.7	$	128.5	$	1,611.3
Services		171.4		61.9		55.2		288.5
Total net revenues	$	990.5	$	725.6	$	183.7	$	1,899.8

	Year Ended December 31, 2018
	Vacuum & Analysis		Light & Motion		Equipment & Solutions		Total
Net revenues:
Products	$	1,080.3	$	754.9	$	—	$	1,835.2
Services		180.5		59.4		—		239.9
Total net revenues	$	1,260.8	$	814.3	$	—	$	2,075.1