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Goodwill and Other Intangible Assets - Changes in Carrying Amount of Goodwill (Details) $ in Millions	6 Months Ended
	Jun. 30, 2023 USD ($)
Goodwill [Roll Forward]
Goodwill, beginning balance	$ 453.4
Goodwill	20.9
Translation adjustments	1.1
Goodwill, ending balance	475.4
Environmental Solutions
Goodwill [Roll Forward]
Goodwill, beginning balance	343.8
Goodwill	20.9
Translation adjustments	0.3
Goodwill, ending balance	365.0
Safety and Security Systems
Goodwill [Roll Forward]
Goodwill, beginning balance	109.6
Goodwill	0.0
Translation adjustments	0.8
Goodwill, ending balance	$ 110.4

X

- 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

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-Topic 852
-SubTopic 10
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-Topic 210
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Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Topic 942
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-Name Accounting Standards Codification
-Section S99
-Paragraph 1
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1

+ Details

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X

- 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

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 350
-SubTopic 20
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-Section 55
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-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482548/350-20-55-24

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-Publisher FASB
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+ Details

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X

- 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

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Topic 350
-SubTopic 20
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-Section 50
-Paragraph 1
-Subparagraph (f)
-Publisher FASB
-URI https://asc.fasb.org//1943274/2147482573/350-20-50-1

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X

- Definition

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

+ References

No definition available.

+ Details

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