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v3.26.1

Segment Reporting (Details) - USD ($) $ in Thousands | 3 Months Ended | 6 Months Ended
--- | --- | ---
Jun. 30, 2026 | Mar. 31, 2026 | Jun. 30, 2025 | Mar. 31, 2025 | Jun. 30, 2026 | Jun. 30, 2025
Segment Reporting [Line Items] |  |  |  |  |  |
Net sales | $ 127,362 |  | $ 131,840 |  | $ 252,463 | $ 243,679
Lower of cost or market inventory valuation adjustment | 2,521 |  | 1,893 |  | 7,779 | 4,676
Research and development | 1,539 |  | 1,348 |  | 2,982 | 3,227
Selling and administrative expenses | 12,616 |  | 13,267 |  | 26,844 | 27,889
Other expense (income), net | 534 |  | (2,426) |  | (11,514) | (1,979)
Interest expense | 24,370 |  | 25,418 |  | 48,566 | 55,259
Interest income | (713) |  | (1,866) |  | (1,554) | (3,801)
Income tax expense | 1,703 |  | 51,207 |  | 3,012 | 43,995
Net loss | (40,471) | $ (43,277) | (86,886) | $ (39,351) | (83,748) | (126,237)
Industrial Materials Segment |  |  |  |  |  |
Segment Reporting [Line Items] |  |  |  |  |  |
Net sales | 127,362 |  | 131,840 |  | 252,463 | 243,679
Cash cost of goods sold | 108,322 |  | 107,354 |  | 216,440 | 197,560
Other segment expenses | 16,941 |  | 22,531 |  | 43,656 | 43,090
Lower of cost or market inventory valuation adjustment | 2,521 |  | 1,893 |  | 7,779 | 4,676
Research and development | 1,539 |  | 1,348 |  | 2,982 | 3,227
Selling and administrative expenses | 12,616 |  | 13,267 |  | 26,844 | 27,889
Other expense (income), net | 534 |  | (2,426) |  | (11,514) | (1,979)
Interest expense | 24,370 |  | 25,418 |  | 48,566 | 55,259
Interest income | (713) |  | (1,866) |  | (1,554) | (3,801)
Income tax expense | 1,703 |  | 51,207 |  | 3,012 | 43,995
Net loss | $ (40,471) |  | $ (86,886) |  | $ (83,748) | $ (126,237)

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