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Goodwill and Other Intangible Assets - Changes in Carrying Amount of Goodwill (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 432.2	$ 394.2
Translation adjustments	(2.8)	(2.3)
Acquisitions, including measurement period adjustments	24.0
Goodwill acquired		40.3
Goodwill, ending balance	453.4	432.2
Environmental Solutions
Goodwill [Roll Forward]
Goodwill, beginning balance	320.2	279.9
Translation adjustments	(0.4)	0.0
Acquisitions, including measurement period adjustments	24.0
Goodwill acquired		40.3
Goodwill, ending balance	343.8	320.2
Safety And Security Systems
Goodwill [Roll Forward]
Goodwill, beginning balance	112.0	114.3
Translation adjustments	(2.4)	(2.3)
Acquisitions, including measurement period adjustments	0.0
Goodwill acquired		0.0
Goodwill, ending balance	$ 109.6	$ 112.0

X

- Definition

Goodwill Acquired During Period And Measurement Period Adjustments

+ References

No definition available.

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- Definition

Amount after accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 210
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-03(10)(1))
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-Topic 350
-SubTopic 20
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-Publisher FASB
-Name Accounting Standards Codification
-Topic 852
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-Section 55
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- Definition

Amount of increase in asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized resulting from a business combination.

+ References

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- Definition

Amount of foreign currency translation gain (loss) which increases (decreases) an asset representing future economic benefits from other assets acquired in a business combination that are not individually identified and separately recognized.

+ References

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-Topic 350
-SubTopic 20
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- Definition

A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period.

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