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Business Segments (Details2) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Segment Reporting Other Significant Reconciling Item [Line Items] |  |  |
Depreciation and amortization | $ 142.9 | $ 143.9 | $ 143.3
Capital expenditures | 130.9 | 152.6 | 136.5
Operating Segments |  |  |
Segment Reporting Other Significant Reconciling Item [Line Items] |  |  |
Depreciation and amortization | 142.9 | 143.9 | 143.3
Capital expenditures | 130.9 | 152.6 | 136.5
Operating Segments | High Performance Materials & Components |  |  |
Segment Reporting Other Significant Reconciling Item [Line Items] |  |  |
Depreciation and amortization | 68.3 | 75.0 | 78.1
Capital expenditures | 33.3 | 40.2 | 83.1
Operating Segments | Corporate [Member] |  |  |
Segment Reporting Other Significant Reconciling Item [Line Items] |  |  |
Depreciation and amortization | 7.2 | 4.4 | 3.1
Capital expenditures | 8.0 | 1.8 | 7.5
Operating Segments | Advanced Alloys & Solutions [Member] |  |  |
Segment Reporting Other Significant Reconciling Item [Line Items] |  |  |
Depreciation and amortization | 67.4 | 64.5 | 62.1
Capital expenditures | $ 89.6 | $ 110.6 | $ 45.9

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