Consolidated Statements of Operations and Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Net revenues:
Net revenues	$ 2,330.0	$ 1,899.8	$ 2,075.1
Cost of revenues:
Cost of revenues	1,280.5	1,069.4	1,095.6
Gross profit	1,049.5	830.4	979.5
Research and development	173.1	164.1	135.7
Selling, general and administrative	353.1	330.3	298.1
Acquisition and integration costs	3.8	37.3	3.1
Restructuring and other	9.4	7.0	4.6
Amortization of intangible assets	55.2	67.4	43.5
Asset impairment	2.3	4.7
COVID-19 related net credits	(1.2)
Fees and expenses related to repricing of Term Loan Facility		6.6	0.4
Gain on sale of long-lived assets		(6.8)
Income from operations	453.8	219.8	494.1
Interest income	1.4	5.4	5.8
Interest expense	29.1	44.1	16.9
Other expense, net	3.1	3.3	2.0
Income before income taxes	423.0	177.8	481.0
Provision for income taxes	72.9	37.4	88.1
Net income	350.1	140.4	392.9
Other comprehensive income, net of tax:
Changes in value of financial instruments designated as cash flow hedges	(10.6)	(10.0)	4.9
Foreign currency translation adjustments	34.7	(6.2)	(14.2)
Unrecognized pension (loss) gain	(1.7)	(0.5)	0.2
Unrealized gain on investments	0.2
Total comprehensive income	$ 372.7	$ 123.7	$ 383.8
Net income per share:
Basic	$ 6.36	$ 2.57	$ 7.22
Diluted	$ 6.33	$ 2.55	$ 7.14
Weighted average common shares outstanding:
Basic	55,095,000	54,711,000	54,406,000
Diluted	55,300,000	55,100,000	55,000,000.0
Products [Member]
Net revenues:
Net revenues	$ 2,014.8	$ 1,611.3	$ 1,835.2
Cost of revenues:
Cost of revenues	1,106.4	913.5	969.3
Services [Member]
Net revenues:
Net revenues	315.2	288.5	239.9
Cost of revenues:
Cost of revenues	$ 174.1	$ 155.9	$ 126.3