Commitments and Contingencies (Summary of Change in Number of Asbestos Claims Outstanding) (Details) $ in Millions	3 Months Ended
Mar. 31, 2021 USD ($) claim
Liability for Asbestos and Environmental Claims [Roll Forward]
Claims outstanding as of January 1, 2020	561
New claims filed	27
Pending claims concluded	(39)
Claims outstanding as of March 31, 2021	549
Number of claims dismissed	37
Number of claims settled	2
Settlements \| $	$ 0.1

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

No definition available.

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- Definition

Amount of cash outflow reducing loss contingency liability.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=121557415&loc=d3e14326-108349

+ Details

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- Definition

Number of claims dismissed.

+ References

No definition available.

+ Details

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- Definition

The number of claims settled and dismissed during the period.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 450
-SubTopic 20
-Section 50
-Paragraph 4
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=121557415&loc=d3e14435-108349

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- Definition

Number of claims settled.

+ References

No definition available.

+ Details

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- Definition

The total number of new claims filed pertaining to a loss contingency during the period.

+ References

+ Details

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- Definition

Number of pending claims pertaining to a loss contingency.

+ References

+ Details

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Balance Type:	na
Period Type:	instant