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Fair Value - Schedule of Fair Value Assets and Liabilities (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Fair Value, Assets and Liabilities Measured on Non-Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Reduction/Amortization for the period	$ 4.9	$ 7.6	$ 7.1
Impact of changes in foreign currency rates	1.5	0.3	3.3
Discontinued Operations, Disposed of by Sale | Balcke Durr | Guarantees and Bonds | Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Non-Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Guarantees, at period start	4.4	8.7	9.9
Reduction/Amortization for the period	2.3	(4.1)	(2.5)
Impact of changes in foreign currency rates	0.1	(0.2)	1.3
Guarantees, at period end	2.0	4.4	8.7
Discontinued Operations, Disposed of by Sale | Balcke Durr | Indemnification Agreement | Fair Value, Measurements, Nonrecurring | Significant Unobservable Inputs (Level 3)
Fair Value, Assets and Liabilities Measured on Non-Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]
Indemnification assets, at period start	1.2	2.8	4.8
Reduction/Amortization for the period	(0.9)	1.5	2.6
Impact of changes in foreign currency rates	0.0	0.1	(0.6)
Indemnification assets, at period end	$ 0.3	$ 1.2	$ 2.8

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- Definition

Fair Value, Assets and Liabilities Measured on Non-Recurring Basis, Unobservable Input Reconciliation, Calculation [Roll Forward]

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- Definition

Fair value portion of probable future economic benefits obtained or controlled by an entity as a result of past transactions or events.

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Amount before tax of foreign currency transaction realized and unrealized gain (loss) recognized in the income statement.

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Fair value portion of guarantee, including, but not limited to, financial standby letter of credit, fair value guarantee, guarantee of collection of scheduled contractual cash flows from financial assets, and contracts that contingently require the guarantor to make payments or perform services.

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Amount of income (expense) related to nonoperating activities, classified as other.

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