Impairment and Restructuring Charges - Restructuring Charges by Segment (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Restructuring Cost and Reserve [Line Items]
Impairment charges	$ 8.8	$ 1.1	$ 8.8	$ 4.5
Severance and related benefit costs	1.1	0.1	1.4	0.6
Exit costs	0.1	0.1	0.8	0.2
Total	10.0	1.3	11.0	5.3
Mobile Industries
Restructuring Cost and Reserve [Line Items]
Impairment charges	8.8	1.0	8.8	1.1
Severance and related benefit costs	0.7	0.0	1.1	0.0
Exit costs	0.1	0.1	0.8	0.2
Total	9.6	1.1	10.7	1.3
Process Industries
Restructuring Cost and Reserve [Line Items]
Impairment charges	0.0	0.1	0.0	3.4
Severance and related benefit costs	0.4	0.1	0.3	0.6
Exit costs	0.0	0.0	0.0	0.0
Total	$ 0.4	$ 0.2	$ 0.3	$ 4.0

Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Includes, but is not limited to, one-time termination benefits, termination of an operating lease or other contract, consolidating or closing facilities, and relocating employees, and termination benefits associated with an ongoing benefit arrangement. Excludes expenses associated with special or contractual termination benefits, a discontinued operation or an asset retirement obligation.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 28
-Subparagraph (b)
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Amount, after cash payment, of expenses associated with exit or disposal activities pursuant to an authorized plan and expenses resulting from the write-down of assets. Excludes expenses related to a business combination, a discontinued operation or an asset retirement obligation.

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Amount of restructuring charges, remediation cost, and asset impairment loss.

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Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
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Amount of expenses for special or contractual termination benefits provided to current employees involuntarily terminated under a benefit arrangement associated exit or disposal activities pursuant to an authorized plan. Excludes expenses related to one-time termination benefits, a discontinued operation or an asset retirement obligation.

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