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Business Segments (Details3) - USD ($) $ in Millions | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
--- | --- | --- | ---
Segment Reporting Asset Reconciling Item [Line Items] |  |  |
Assets | $ 4,445.6 | $ 4,285.2 | $ 4,034.9
Deferred taxes | 158.0 | 175.9 |
Cash and cash equivalents | 584.0 | 687.7 |
Corporate, Non-Segment [Member] |  |  |
Segment Reporting Asset Reconciling Item [Line Items] |  |  |
Deferred taxes | 4.7 | 6.3 | 5.1
Cash and cash equivalents | 710.5 | 740.1 | 771.2
High Performance Materials & Components |  |  |
Segment Reporting Asset Reconciling Item [Line Items] |  |  |
Assets | 1,749.3 | 1,624.8 | 1,594.6
Advanced Alloys & Solutions [Member] |  |  |
Segment Reporting Asset Reconciling Item [Line Items] |  |  |
Assets | $ 1,981.1 | $ 1,914.0 | $ 1,664.0

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