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Business Segments (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2024 | Jul. 02, 2023 | Jun. 30, 2024 | Jul. 02, 2023
Segment Reporting Information [Line Items] |  |  |  |
Sales | $ 1,095.3 | $ 1,046.0 | $ 2,138.2 | $ 2,084.1
Segment EBITDA | 201.3 | 183.8 | 370.7 | 349.1
Corporate expenses | (19.4) | (17.7) | (36.5) | (34.6)
Closed operations and other income (expense) | 0.7 | (1.9) | (0.6) | (3.2)
Depreciation & amortization | (37.9) | (35.9) | (73.9) | (71.0)
Interest expense, net | (28.4) | (21.3) | (55.0) | (41.2)
Income (loss) from equity investments | (0.4) | 0.0 | (0.8) | (0.3)
Restructuring and other charges | (5.4) | (9.2) | (8.5) | (10.4)
Loss on asset sales and sales of businesses, net | 0.0 |  | 0.0 |
Income before income taxes | 110.9 | 97.2 | 196.2 | 188.1
Northbrook, IL Operations |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Loss on asset sales and sales of businesses, net |  | (0.6) |  | (0.6)
Houston, PA facility |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Loss on asset sales and sales of businesses, net | 2.3 |  | 2.3 |
Net proceeds on disposition of assets |  |  | 3.5 |
Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Sales | 1,248.4 | 1,176.2 | 2,381.0 | 2,331.6
Depreciation & amortization | (37.9) | (35.9) | (73.9) | (71.0)
Operating Segments | High Performance Materials & Components |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Sales | 643.8 | 562.8 | 1,215.7 | 1,092.4
Segment EBITDA | 113.8 | 109.7 | 211.4 | 191.3
Depreciation & amortization | (17.9) | (17.9) | (34.2) | (35.3)
Operating Segments | Advanced Alloys & Solutions |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Sales | 604.6 | 613.4 | 1,165.3 | 1,239.2
Segment EBITDA | 87.5 | 74.1 | 159.3 | 157.8
Depreciation & amortization | (18.3) | (16.2) | (36.3) | (32.3)
Operating Segments | Corporate Segment |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Depreciation & amortization | (1.7) | (1.8) | (3.4) | (3.4)
Internal Customers | Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Sales | 153.1 | 130.2 | 242.8 | 247.5
Internal Customers | Operating Segments | High Performance Materials & Components |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Sales | 81.8 | 35.7 | 123.8 | 94.2
Internal Customers | Operating Segments | Advanced Alloys & Solutions |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Sales | 71.3 | 94.5 | 119.0 | 153.3
External Customers | Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Sales | 1,095.3 | 1,046.0 | 2,138.2 | 2,084.1
External Customers | Operating Segments | High Performance Materials & Components |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Sales | 562.0 | 527.1 | 1,091.9 | 998.2
External Customers | Operating Segments | Advanced Alloys & Solutions |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Sales | $ 533.3 | $ 518.9 | $ 1,046.3 | $ 1,085.9

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