Business Acquisitions and Dispositions - Narrative (Details) - USD ($) $ in Millions	1 Months Ended		3 Months Ended	12 Months Ended
	Jun. 30, 2021	Aug. 31, 2019	Dec. 31, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Business Acquisition [Line Items]
Goodwill			$ 1,873.1	$ 1,871.3	$ 1,873.1	$ 1,761.6
Acquisitions, net of cash acquired				(0.1)	239.6	70.8
Gain on disposition of business				(6.9)	0.0	$ 21.7
Disposal by sale | Haefely Test, AG
Business Acquisition [Line Items]
Proceeds from disposal of business		$ 38.1
Dispositions, tangible assets		32.3
Dispositions, goodwill		3.1
Dispositions, liabilities		12.2
Dispositions, translation adjustments recognized		7.7
Gain on disposition of business		$ 21.7
Disposal by sale | Consumer Analytics Solutions
Business Acquisition [Line Items]
Proceeds from disposal of business	$ 9.8
Dispositions, tangible assets	15.9
Dispositions, goodwill	1.9
Dispositions, liabilities	1.5
Gain on disposition of business	6.9
Dispositions, definite-lived intangibles	$ 8.7
2020 Acquisitions
Business Acquisition [Line Items]
Goodwill			106.3		106.3
Deferred purchase price and net working capital settlements					2.0
Acquisitions, net of cash acquired				$ (0.1)	239.6
Armorcast
Business Acquisition [Line Items]
Consideration transferred to acquire business			136.3
Intangible asset acquired			51.2		51.2
Goodwill			$ 71.6		71.6
Weighted average estimated useful life			19 years
Beckwith
Business Acquisition [Line Items]
Consideration transferred to acquire business			$ 54.7
Intangible asset acquired			32.6		32.6
Goodwill			$ 12.7		12.7
Weighted average estimated useful life			15 years
AccelTex
Business Acquisition [Line Items]
Consideration transferred to acquire business			$ 45.1
Intangible asset acquired			19.4		19.4
Goodwill			$ 21.0		21.0
Weighted average estimated useful life			15 years
Other 2020 Acquisition
Business Acquisition [Line Items]
Consideration transferred to acquire business			$ 1.6
Goodwill			$ 1.0		$ 1.0