Overview, Basis of Presentation and Recently Issued Authoritative Accounting Guidance - Narrative (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
	Jun. 30, 2020	Sep. 30, 2020	Jan. 31, 2020	Jan. 01, 2020	Dec. 31, 2019
New Accounting Pronouncements or Change in Accounting Principle
Goodwill		$ 486.9			$ 485.3
Allowance for credit losses		3.8			3.7
Decrease in retained earnings		$ (808.5)			(632.2)
Accounting Standards Update [Extensible List]		us-gaap:AccountingStandardsUpdate201613Member
Cumulative Effect, Period of Adoption, Adjustment
New Accounting Pronouncements or Change in Accounting Principle
Allowance for credit losses					0.1
Cumulative Effect, Period of Adoption, Adjustment | Accounting Standards Update 2016-13
New Accounting Pronouncements or Change in Accounting Principle
Allowance for credit losses				$ 0.1
Decrease in retained earnings			$ 0.1
Sealing Products
New Accounting Pronouncements or Change in Accounting Principle
Goodwill transfers	$ (5.8)
Goodwill		$ 470.3			468.6
Engineered Products
New Accounting Pronouncements or Change in Accounting Principle
Goodwill transfers	5.8
Goodwill		$ 16.6			$ 16.7
Technetics Group | Sealing Products
New Accounting Pronouncements or Change in Accounting Principle
Goodwill	$ 243.7
Percentage above carrying value (percent)	5.00%
Other Reporting Units
New Accounting Pronouncements or Change in Accounting Principle
Percentage above carrying value (percent)	20.00%