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v3.25.2

Segment Information - Schedule of Operating Segment Reporting Information (Details) - USD ($) $ in Millions | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2025 | Jun. 30, 2024 | Jun. 30, 2025 | Jun. 30, 2024
Segment Reporting Information [Line Items] |  |  |  |  |
Total sales |  | $ 489.9 | $ 500.4 | $ 946.4 | $ 972.7
Cost of sales |  | 378.4 | 373.8 | 732.5 | 727.9
Gross margin |  | 111.5 | 126.6 | 213.9 | 244.8
Selling, general and administrative expenses |  | 43.0 | 39.9 | 86.3 | 88.9
Research and technology expenses |  | 14.3 | 14.7 | 28.1 | 29.8
Other operating expense |  | 24.2 | 0.2 | 25.3 | 1.4
Operating income (loss) |  | 30.0 | 71.8 | 74.2 | 124.7
Depreciation and amortization |  | 29.6 | 31.0 | 60.6 | 62.0
Stock-based compensation |  | 2.7 | 3.3 | 12.4 | 16.4
Accrual basis additions to capital expenditures |  | 14.7 | 22.5 | 31.8 | 41.1
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 |  | 393.2 | 408.6 | 758.5 | 788.1
Composite Materials | Intersegment Elimination |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total sales |  | 19.4 | 23.9 | 39.5 | 47.2
Composite Materials | Operating Segments |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total sales |  | 412.6 | 432.5 | 798.0 | 835.3
Cost of sales |  | 315.7 | 322.5 | 609.2 | 622.8
Gross margin |  | 96.9 | 110.0 | 188.8 | 212.5
Selling, general and administrative expenses |  | 26.3 | 23.2 | 51.8 | 48.6
Research and technology expenses |  | 12.3 | 12.5 | 24.1 | 25.1
Other operating expense |  | 0.0 | 0.0 | 0.0 | 0.8
Operating income (loss) |  | 58.3 | 74.3 | 112.9 | 138.0
Depreciation and amortization |  | 26.9 | 27.3 | 54.1 | 54.5
Stock-based compensation |  | 0.9 | 1.1 | 3.9 | 4.2
Accrual basis additions to capital expenditures |  | 13.1 | 18.6 | 28.6 | 35.3
Engineered Products |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total sales |  | 96.7 | 91.8 | 187.9 | 184.6
Engineered Products | Intersegment Elimination |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total sales |  | 0.4 | 0.6 | 0.7 | 0.9
Engineered Products | Operating Segments |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total sales |  | 97.1 | 92.4 | 188.6 | 185.5
Cost of sales |  | 81.5 | 72.7 | 161.4 | 146.0
Gross margin |  | 15.6 | 19.7 | 27.2 | 39.5
Selling, general and administrative expenses |  | 4.0 | 5.3 | 8.3 | 10.6
Research and technology expenses |  | 1.0 | 1.2 | 2.1 | 2.4
Other operating expense |  | 24.2 | 0.2 | 25.3 | 0.6
Operating income (loss) |  | (13.6) | 13.0 | (8.5) | 25.9
Depreciation and amortization |  | 2.7 | 3.7 | 6.5 | 7.5
Stock-based compensation |  | 0.2 | 0.3 | 1.0 | 1.1
Accrual basis additions to capital expenditures |  | 1.6 | 3.9 | 3.2 | 5.8
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] | (19.8) | (24.5) | (40.2) | (48.1)
Corporate & Other and Intersegment Elimination | Operating Segments |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |
Total sales | [1] | (19.8) | (24.5) | (40.2) | (48.1)
Cost of sales | [1] | (18.8) | (21.4) | (38.1) | (40.9)
Gross margin | [1] | (1.0) | (3.1) | (2.1) | (7.2)
Selling, general and administrative expenses | [1] | 12.7 | 11.4 | 26.2 | 29.7
Research and technology expenses | [1] | 1.0 | 1.0 | 1.9 | 2.3
Other operating expense | [1] | 0.0 | 0.0 | 0.0 | 0.0
Operating income (loss) | [1] | (14.7) | (15.5) | (30.2) | (39.2)
Depreciation and amortization | [1] | 0.0 | 0.0 | 0.0 | 0.0
Stock-based compensation | [1] | 1.6 | 1.9 | 7.5 | 11.1
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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