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v3.24.0.1

Segment Information - Schedule of Operating Segment Reporting Information (Details) - USD ($) $ in Thousands | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Segment Reporting Information [Line Items] |  |  |  |
Sales | [1],[2] | $ 1,789,000 | $ 1,577,700 | $ 1,324,700
Operating income (loss) |  | 215,300 | 175,200 | 51,800
Depreciation and amortization |  | 124,800 | 126,200 | 138,000
Equity in earnings (losses) from affiliated companies |  | 8,100 | 8,100 |
Other operating expense (income) |  | 1,400 | (11,900) | 18,200
Segment assets |  | 2,918,500 | 2,837,300 | 2,819,400
Investments in affiliated companies |  | 5,000 | 47,600 | 44,600
Accrual basis additions to property, plant and equipment |  | 121,600 | 69,800 | 41,400
Composite Materials |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Sales |  | 1,474,200 | 1,279,700 | 1,019,400
Composite Materials | Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating income (loss) |  | 237,900 | 178,200 | 88,100
Depreciation and amortization |  | 110,400 | 112,000 | 123,400
Equity in earnings (losses) from affiliated companies |  |  |  | (100)
Other operating expense (income) |  | 1,200 | 7,500 | 17,800
Segment assets |  | 2,309,300 | 2,269,400 | 2,258,200
Investments in affiliated companies |  |  | 1,500 | 1,700
Accrual basis additions to property, plant and equipment |  | 70,900 | 58,300 | 35,700
Composite Materials | Intersegment Elimination |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Sales |  | 70,600 | 66,300 | 56,700
Engineered Products |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Sales |  | 314,800 | 298,000 | 305,300
Engineered Products | Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating income (loss) |  | 32,800 | 36,600 | 20,200
Depreciation and amortization |  | 14,400 | 14,100 | 14,500
Equity in earnings (losses) from affiliated companies |  | 8,100 | 8,100 | 200
Other operating expense (income) |  | 200 | 0 | 100
Segment assets |  | 543,100 | 523,200 | 475,600
Investments in affiliated companies |  |  | 38,600 | 35,300
Accrual basis additions to property, plant and equipment |  | 50,700 | 11,400 | 5,700
Engineered Products | Intersegment Elimination |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Sales |  | 2,400 | 2,800 | 2,400
Corporate & Other and Intersegment Elimination | Operating Segments |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Operating income (loss) |  | (55,400) | (39,600) | (56,500)
Depreciation and amortization |  | 0 | 100 | 100
Equity in earnings (losses) from affiliated companies |  |  |  | (100)
Other operating expense (income) |  | 0 | (19,400) | 300
Segment assets |  | 66,100 | 44,700 | 85,600
Investments in affiliated companies |  | 5,000 | 7,500 | 7,600
Accrual basis additions to property, plant and equipment |  |  | 100 |
Corporate & Other and Intersegment Elimination | Intersegment Elimination |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |
Sales |  | $ (73,000) | $ (69,100) | $ (59,100)
[1] | Net sales by geography based on the location in which the product sold was manufactured.
[2] | Net sales to external customers based on the location to which the product sold was delivered.

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