Government Subsidies Recognized To Offset Expenses, COVID-19

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Number of large heavy components supplied to worldwide.

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The estimated value of gains (losses), net anticipated to be transferred in the future from accumulated other comprehensive income into earnings.

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Nominal or face amount used to calculate payment on derivative.

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Percentage of current income tax expense (benefit) and deferred income tax expense (benefit) pertaining to continuing operations.

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Amount of difference between reported income tax expense (benefit) and expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operation, attributable to expense for award under share-based payment arrangement. Excludes expense determined to be nondeductible upon grant or after for award under share-based payment arrangement.

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Amount of gain (loss) recognized in earnings in the period from the increase (decrease) in fair value of foreign currency derivatives not designated as hedging instruments.

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Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer.

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Basis of Presentation and Significant Accounting Policies - Additional Information (Details) $ in Millions		3 Months Ended		9 Months Ended
	May 29, 2020 USD ($)	Sep. 30, 2020 USD ($)	Sep. 30, 2019 USD ($)	Sep. 30, 2020 USD ($) segment component	Sep. 30, 2019 USD ($)	Dec. 31, 2019 USD ($)
Noncash or Part Noncash Divestitures [Line Items]
Number of reportable segments \| segment				3
Number of components supplied to worldwide (more than) \| component				1,300
Effective tax rate		20.30%	20.60%	22.30%	22.10%
Benefits recognized for excess tax benefits related to employee share-based payments				$ 0.9	$ 2.0
Unrecognized tax benefits that would impact effective tax rate		$ 4.5		4.5
Restricted cash and cash equivalents		6.0		6.0
Total inventories		13.0		13.0		$ 17.1
Net gains on foreign exchange forward contracts				0.1
Recognized gain on FX forward contracts not designated as hedges		0.7	$ 0.2	(0.9)	$ (1.3)
Notional amount of foreign currency forward contracts		239.7		239.7
Canada: \| COVID-19
Noncash or Part Noncash Divestitures [Line Items]
Government Subsidies Recognized To Offset Expenses, COVID-19		$ 16.6		$ 16.6
Nuclear Services Business
Noncash or Part Noncash Divestitures [Line Items]
Net assets exchanged in non-cash transaction	$ 18.0