Amount of expenses associated with exit or disposal activities pursuant to an authorized plan. Excludes expenses related to a discontinued operation or an asset retirement obligation.

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Name:	us-gaap_RestructuringCharges
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

Other Operating Expense - Additional Information (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020	Mar. 31, 2021	Dec. 31, 2020
Other Operating Expense [Line Items]
Restructuring charge	$ 5.6	$ 13.1	$ 17.5
Anticipated future cash payments	12.5		12.5		$ 15.9	$ 14.2
Other operating expense	$ 3.1	$ 13.1	$ 15.2	$ 27.8
Terminated Merger \| Woodward, Inc
Other Operating Expense [Line Items]
Other operating expense				$ 14.7