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v3.25.3

Segment Information - Schedule of Operating Segment Reporting Information (Details) - USD ($) $ in Millions | 3 Months Ended | 9 Months Ended
--- | --- | ---
Sep. 30, 2025 | Sep. 30, 2024 | Sep. 30, 2025 | Sep. 30, 2024
Segment Reporting Information [Line Items] |  |  |  |  |
Total sales |  | $ 456.2 | $ 456.5 | $ 1,402.6 | $ 1,429.2
Cost of sales |  | 356.3 | 350.0 | 1,088.8 | 1,077.9
Gross margin |  | 99.9 | 106.5 | 313.8 | 351.3
Selling, general and administrative expenses |  | 41.1 | 39.8 | 127.4 | 128.7
Research and technology expenses |  | 14.0 | 13.8 | 42.1 | 43.6
Other operating expense |  | 8.8 | 0.4 | 34.1 | 1.8
Operating income (loss) |  | 36.0 | 52.5 | 110.2 | 177.2
Depreciation and amortization |  | 30.9 | 31.0 | 91.5 | 93.0
Stock-based compensation |  | 1.0 | 2.9 | 13.4 | 19.3
Accrual basis additions to capital expenditures |  | 18.1 | 18.5 | 49.9 | 59.6
Intersegment Elimination |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total sales |  | 0.0 | 0.0 | 0.0 | 0.0
Composite Materials |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total sales |  | 363.2 | 367.6 | 1,121.7 | 1,155.7
Composite Materials | Intersegment Elimination |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total sales |  | 18.9 | 22.6 | 58.4 | 69.8
Composite Materials | Operating Segments |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total sales |  | 382.1 | 390.2 | 1,180.1 | 1,225.5
Cost of sales |  | 300.1 | 298.4 | 909.3 | 921.2
Gross margin |  | 81.9 | 91.8 | 270.7 | 304.3
Selling, general and administrative expenses |  | 27.1 | 23.8 | 78.9 | 72.4
Research and technology expenses |  | 12.1 | 11.4 | 36.2 | 36.5
Other operating expense |  | 2.8 | 0.2 | 2.8 | 1.0
Operating income (loss) |  | 39.9 | 56.3 | 152.8 | 194.3
Depreciation and amortization |  | 27.7 | 27.3 | 81.8 | 81.8
Stock-based compensation |  | 0.6 | 0.8 | 4.5 | 5.0
Accrual basis additions to capital expenditures |  | 16.7 | 16.0 | 45.3 | 51.3
Engineered Products |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total sales |  | 93.0 | 88.9 | 280.9 | 273.5
Engineered Products | Intersegment Elimination |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total sales |  | 1.4 | 0.1 | 2.1 | 1.0
Engineered Products | Operating Segments |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total sales |  | 94.4 | 89.0 | 283.0 | 274.5
Cost of sales |  | 75.2 | 72.2 | 236.6 | 218.2
Gross margin |  | 19.3 | 16.8 | 46.5 | 56.3
Selling, general and administrative expenses |  | 3.8 | 5.3 | 12.1 | 15.9
Research and technology expenses |  | 1.0 | 1.3 | 3.1 | 3.7
Other operating expense |  | 1.0 | 0.2 | 26.3 | 0.8
Operating income (loss) |  | 13.6 | 10.0 | 5.1 | 35.9
Depreciation and amortization |  | 3.2 | 3.7 | 9.7 | 11.2
Stock-based compensation |  | 0.2 | 0.2 | 1.2 | 1.3
Accrual basis additions to capital expenditures |  | 1.4 | 2.5 | 4.6 | 8.3
Corporate & Other and Intersegment Elimination |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total sales | [1] | 0.0 | 0.0 | 0.0 | 0.0
Corporate & Other and Intersegment Elimination | Intersegment Elimination |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total sales | [1] | (20.3) | (22.7) | (60.5) | (70.8)
Corporate & Other and Intersegment Elimination | Operating Segments |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total sales | [1] | (20.3) | (22.7) | (60.5) | (70.8)
Cost of sales | [1] | (19.0) | (20.6) | (57.1) | (61.5)
Gross margin | [1] | (1.3) | (2.1) | (3.4) | (9.3)
Selling, general and administrative expenses | [1] | 10.2 | 10.7 | 36.4 | 40.4
Research and technology expenses | [1] | 0.9 | 1.1 | 2.8 | 3.4
Other operating expense | [1] | 5.0 | 0.0 | 5.0 | 0.0
Operating income (loss) | [1] | (17.5) | (13.8) | (47.7) | (53.0)
Depreciation and amortization | [1] | 0.0 | 0.0 | 0.0 | 0.0
Stock-based compensation | [1] | 0.2 | 1.9 | 7.7 | 13.0
Accrual basis additions to capital expenditures | [1] | $ 0.0 | $ 0.0 | $ 0.0 | $ 0.0
[1] | We do not allocate corporate expenses to the operating segments.

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