| Three Months Ended June 30, | Six Months Ended June 30, | ||||||||||||||||||||||
| (Dollars in thousands) | 2026 | 2025 | 2026 | 2025 | |||||||||||||||||||
| Graphite Electrodes | $ | 118,898\u00a0 | $ | 119,440\u00a0 | $ | 227,137\u00a0 | $ | 220,702\u00a0 | |||||||||||||||
| By-products and other | 8,464\u00a0 | 12,400\u00a0 | 25,326\u00a0 | 22,977\u00a0 | |||||||||||||||||||
| Total Revenues | $ | 127,362\u00a0 | $ | 131,840\u00a0 | $ | 252,463\u00a0 | $ | 243,679\u00a0 |
| Three Months Ended June 30, | Six Months Ended June 30, | ||||||||||||||||||||||
| (Dollars in thousands) | 2026 | 2025 | 2026 | 2025 | |||||||||||||||||||
| Graphite Electrodes | $ | 118,898\u00a0 | $ | 119,440\u00a0 | $ | 227,137\u00a0 | $ | 220,702\u00a0 | |||||||||||||||
| By-products and other | 8,464\u00a0 | 12,400\u00a0 | 25,326\u00a0 | 22,977\u00a0 | |||||||||||||||||||
| Total Revenues | $ | 127,362\u00a0 | $ | 131,840\u00a0 | $ | 252,463\u00a0 | $ | 243,679\u00a0 |
| Three Months Ended June 30, | Six Months Ended June 30, | ||||||||||||||||||||||
| (Dollars in thousands) | 2026 | 2025 | 2026 | 2025 | |||||||||||||||||||
| Net sales | $ | 127,362\u00a0 | $ | 131,840\u00a0 | $ | 252,463\u00a0 | $ | 243,679\u00a0 | |||||||||||||||
Cash cost of goods sold(1) | 108,322\u00a0 | 107,354\u00a0 | 216,440\u00a0 | 197,560\u00a0 | |||||||||||||||||||
| Other segment expenses | 16,941\u00a0 | 22,531\u00a0 | 43,656\u00a0 | 43,090\u00a0 | |||||||||||||||||||
| Lower of cost or market inventory valuation adjustment | 2,521\u00a0 | 1,893\u00a0 | 7,779\u00a0 | 4,676\u00a0 | |||||||||||||||||||
| Research and development | 1,539\u00a0 | 1,348\u00a0 | 2,982\u00a0 | 3,227\u00a0 | |||||||||||||||||||
| Selling and administrative expenses | 12,616\u00a0 | 13,267\u00a0 | 26,844\u00a0 | 27,889\u00a0 | |||||||||||||||||||
| Other expense (income), net | 534\u00a0 | (2,426) | (11,514) | (1,979) | |||||||||||||||||||
| Interest expense | 24,370\u00a0 | 25,418\u00a0 | 48,566\u00a0 | 55,259\u00a0 | |||||||||||||||||||
| Interest income | (713) | (1,866) | (1,554) | (3,801) | |||||||||||||||||||
| Income tax expense | 1,703\u00a0 | 51,207\u00a0 | 3,012\u00a0 | 43,995\u00a0 | |||||||||||||||||||
| Net loss | $ | (40,471) | $ | (86,886) | $ | (83,748) | $ | (126,237) |
| Three Months Ended June 30, | Six Months Ended June 30, | ||||||||||||||||||||||
| (Dollars in thousands) | 2026 | 2025 | 2026 | 2025 | |||||||||||||||||||
| Net sales | $ | 127,362\u00a0 | $ | 131,840\u00a0 | $ | 252,463\u00a0 | $ | 243,679\u00a0 | |||||||||||||||
Cash cost of goods sold(1) | 108,322\u00a0 | 107,354\u00a0 | 216,440\u00a0 | 197,560\u00a0 | |||||||||||||||||||
| Other segment expenses | 16,941\u00a0 | 22,531\u00a0 | 43,656\u00a0 | 43,090\u00a0 | |||||||||||||||||||
| Lower of cost or market inventory valuation adjustment | 2,521\u00a0 | 1,893\u00a0 | 7,779\u00a0 | 4,676\u00a0 | |||||||||||||||||||
| Research and development | 1,539\u00a0 | 1,348\u00a0 | 2,982\u00a0 | 3,227\u00a0 | |||||||||||||||||||
| Selling and administrative expenses | 12,616\u00a0 | 13,267\u00a0 | 26,844\u00a0 | 27,889\u00a0 | |||||||||||||||||||
| Other expense (income), net | 534\u00a0 | (2,426) | (11,514) | (1,979) | |||||||||||||||||||
| Interest expense | 24,370\u00a0 | 25,418\u00a0 | 48,566\u00a0 | 55,259\u00a0 | |||||||||||||||||||
| Interest income | (713) | (1,866) | (1,554) | (3,801) | |||||||||||||||||||
| Income tax expense | 1,703\u00a0 | 51,207\u00a0 | 3,012\u00a0 | 43,995\u00a0 | |||||||||||||||||||
| Net loss | $ | (40,471) | $ | (86,886) | $ | (83,748) | $ | (126,237) |
| \u00a0 | June 30, 2026 | December 31, 2025 | |||||||||||||||||||||||||||||||||
| (Dollars in thousands) | Gross Carrying Amount | Accumulated Amortization | Net Carrying Amount | Gross Carrying Amount | Accumulated Amortization | Net Carrying Amount | |||||||||||||||||||||||||||||
| Trade names | $ | 22,500\u00a0 | $ | (19,329) | $ | 3,171\u00a0 | $ | 22,500\u00a0 | $ | (18,986) | $ | 3,514\u00a0 | |||||||||||||||||||||||
| Technology | 55,300\u00a0 | (51,988) | 3,312\u00a0 | 55,300\u00a0 | (50,969) | 4,331\u00a0 | |||||||||||||||||||||||||||||
| Customer relationships | 64,500\u00a0 | (47,402) | 17,098\u00a0 | 64,500\u00a0 | (45,295) | 19,205\u00a0 | |||||||||||||||||||||||||||||
| Total | $ | 142,300\u00a0 | $ | (118,719) | $ | 23,581\u00a0 | $ | 142,300\u00a0 | $ | (115,250) | $ | 27,050\u00a0 |
| \u00a0 | June 30, 2026 | December 31, 2025 | |||||||||||||||||||||||||||||||||
| (Dollars in thousands) | Gross Carrying Amount | Accumulated Amortization | Net Carrying Amount | Gross Carrying Amount | Accumulated Amortization | Net Carrying Amount | |||||||||||||||||||||||||||||
| Trade names | $ | 22,500\u00a0 | $ | (19,329) | $ | 3,171\u00a0 | $ | 22,500\u00a0 | $ | (18,986) | $ | 3,514\u00a0 | |||||||||||||||||||||||
| Technology | 55,300\u00a0 | (51,988) | 3,312\u00a0 | 55,300\u00a0 | (50,969) | 4,331\u00a0 | |||||||||||||||||||||||||||||
| Customer relationships | 64,500\u00a0 | (47,402) | 17,098\u00a0 | 64,500\u00a0 | (45,295) | 19,205\u00a0 | |||||||||||||||||||||||||||||
| Total | $ | 142,300\u00a0 | $ | (118,719) | $ | 23,581\u00a0 | $ | 142,300\u00a0 | $ | (115,250) | $ | 27,050\u00a0 |
| (Dollars in thousands) | June 30, 2026 | December 31, 2025 | |||||||||
| Initial First Lien Term Loans due 2029 | $ | 175,000\u00a0 | $ | 175,000\u00a0 | |||||||
| Delayed Draw First Lien Term Loans due 2029 | 100,000\u00a0 | \u2014\u00a0 | |||||||||
Existing 4.625% Senior Notes due 2028 | 1,755\u00a0 | 1,755\u00a0 | |||||||||
New 4.625% Second Lien Notes due 2029 | 498,245\u00a0 | 498,245\u00a0 | |||||||||
Existing 9.875% Senior Notes due 2028 | 3,833\u00a0 | 3,833\u00a0 | |||||||||
New 9.875% Second Lien Notes due 2029 | 446,167\u00a0 | 446,167\u00a0 | |||||||||
| Unamortized debt discount and issuance costs | (26,398) | (30,294) | |||||||||
| Total long-term debt | $ | 1,198,602\u00a0 | $ | 1,094,706\u00a0 |
| (Dollars in thousands) | June 30, 2026 | December 31, 2025 | |||||||||
| Initial First Lien Term Loans due 2029 | $ | 175,000\u00a0 | $ | 175,000\u00a0 | |||||||
| Delayed Draw First Lien Term Loans due 2029 | 100,000\u00a0 | \u2014\u00a0 | |||||||||
Existing 4.625% Senior Notes due 2028 | 1,755\u00a0 | 1,755\u00a0 | |||||||||
New 4.625% Second Lien Notes due 2029 | 498,245\u00a0 | 498,245\u00a0 | |||||||||
Existing 9.875% Senior Notes due 2028 | 3,833\u00a0 | 3,833\u00a0 | |||||||||
New 9.875% Second Lien Notes due 2029 | 446,167\u00a0 | 446,167\u00a0 | |||||||||
| Unamortized debt discount and issuance costs | (26,398) | (30,294) | |||||||||
| Total long-term debt | $ | 1,198,602\u00a0 | $ | 1,094,706\u00a0 |
| (Dollars in thousands) | June 30, 2026 | December 31, 2025 | |||||||||
| Inventories: | |||||||||||
| Raw materials and supplies | $ | 81,683\u00a0 | $ | 76,115\u00a0 | |||||||
| Work in process | 119,451\u00a0 | 116,933\u00a0 | |||||||||
| Finished goods | 36,130\u00a0 | 31,644\u00a0 | |||||||||
| \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Total | $ | 237,264\u00a0 | $ | 224,692\u00a0 |
| (Dollars in thousands) | June 30, 2026 | December 31, 2025 | |||||||||
| Inventories: | |||||||||||
| Raw materials and supplies | $ | 81,683\u00a0 | $ | 76,115\u00a0 | |||||||
| Work in process | 119,451\u00a0 | 116,933\u00a0 | |||||||||
| Finished goods | 36,130\u00a0 | 31,644\u00a0 | |||||||||
| \u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0\u00a0Total | $ | 237,264\u00a0 | $ | 224,692\u00a0 |
| Three Months Ended June 30, | Six Months Ended June 30, | ||||||||||||||||||||||
| (Dollars in thousands) | 2026 | 2025 | 2026 | 2025 | |||||||||||||||||||
| Interest incurred on debt | $ | 22,421\u00a0 | $ | 22,539\u00a0 | $ | 44,670\u00a0 | $ | 45,071\u00a0 | |||||||||||||||
| Accretion of original issue discount | 1,264\u00a0 | 1,260\u00a0 | 2,527\u00a0 | 2,527\u00a0 | |||||||||||||||||||
| Amortization of debt issuance costs | 685\u00a0 | 688\u00a0 | 1,369\u00a0 | 1,369\u00a0 | |||||||||||||||||||
| Debt modification costs | \u2014\u00a0 | 931\u00a0 | \u2014\u00a0 | 6,292\u00a0 | |||||||||||||||||||
| Total interest expense | $ | 24,370\u00a0 | $ | 25,418\u00a0 | $ | 48,566\u00a0 | $ | 55,259\u00a0 |
| Three Months Ended June 30, | Six Months Ended June 30, | ||||||||||||||||||||||
| (Dollars in thousands) | 2026 | 2025 | 2026 | 2025 | |||||||||||||||||||
| Interest incurred on debt | $ | 22,421\u00a0 | $ | 22,539\u00a0 | $ | 44,670\u00a0 | $ | 45,071\u00a0 | |||||||||||||||
| Accretion of original issue discount | 1,264\u00a0 | 1,260\u00a0 | 2,527\u00a0 | 2,527\u00a0 | |||||||||||||||||||
| Amortization of debt issuance costs | 685\u00a0 | 688\u00a0 | 1,369\u00a0 | 1,369\u00a0 | |||||||||||||||||||
| Debt modification costs | \u2014\u00a0 | 931\u00a0 | \u2014\u00a0 | 6,292\u00a0 | |||||||||||||||||||
| Total interest expense | $ | 24,370\u00a0 | $ | 25,418\u00a0 | $ | 48,566\u00a0 | $ | 55,259\u00a0 |
| Three Months Ended June 30, | Six Months Ended June 30, | ||||||||||||||||||||||
| (Dollars in thousands) | 2026 | 2025 | 2026 | 2025 | |||||||||||||||||||
| Income tax expense | $ | 1,703\u00a0 | $ | 51,207\u00a0 | $ | 3,012\u00a0 | $ | 43,995\u00a0 | |||||||||||||||
| Loss before income taxes | (38,768) | (35,679) | (80,736) | (82,242) | |||||||||||||||||||
| Effective tax rate | 4.4\u00a0 | % | 143.5\u00a0 | % | 3.7\u00a0 | % | 53.5\u00a0 | % |
| Three Months Ended June 30, | Six Months Ended June 30, | ||||||||||||||||||||||
| (Dollars in thousands) | 2026 | 2025 | 2026 | 2025 | |||||||||||||||||||
| Income tax expense | $ | 1,703\u00a0 | $ | 51,207\u00a0 | $ | 3,012\u00a0 | $ | 43,995\u00a0 | |||||||||||||||
| Loss before income taxes | (38,768) | (35,679) | (80,736) | (82,242) | |||||||||||||||||||
| Effective tax rate | 4.4\u00a0 | % | 143.5\u00a0 | % | 3.7\u00a0 | % | 53.5\u00a0 | % |
| June 30, 2026 | December 31, 2025 | ||||||||||
| (Dollars in thousands) | Notional Amount | Notional Amount | |||||||||
| Derivative instruments designated as hedges: | |||||||||||
| Foreign currency derivatives | $ | 21,697\u00a0 | $ | \u2014\u00a0 | |||||||
| Derivative instruments not designated as hedges: | |||||||||||
| Foreign currency derivatives | $ | 30,668\u00a0 | $ | 35,498\u00a0 |
| \u00a0 | \u00a0 | Amount\u00a0of\u00a0Gain Recognized | ||||||||||||||||||
| Location of Realized Gain Recognized in the Condensed Consolidated Statement of Operations | Three Months Ended June 30, | |||||||||||||||||||
| (Dollars in thousands) | 2026 | 2025 | ||||||||||||||||||
| Derivatives designated as cash flow hedges: | ||||||||||||||||||||
| Foreign currency derivatives | Cost of goods sold | $ | (4) | $ | (188) | |||||||||||||||
| Amount\u00a0of\u00a0Gain Recognized | ||||||||||||||||||||
| Location of Realized Gain Recognized in the Condensed Consolidated Statement of Operations | Six Months Ended June 30, | |||||||||||||||||||
| (Dollars in thousands) | 2026 | 2025 | ||||||||||||||||||
| Derivatives designated as cash flow hedges: | ||||||||||||||||||||
| Foreign currency derivatives | Cost of goods sold | $ | (15) | $ | (245) |
| \u00a0 | \u00a0 | Amount\u00a0of Loss\u00a0(Gain) Recognized | ||||||||||||||||||
| Location of Loss (Gain) Recognized in the Condensed Consolidated Statement of Operations | Three Months Ended June 30, | |||||||||||||||||||
| (Dollars in thousands) | 2026 | 2025 | ||||||||||||||||||
| Derivatives not designated as hedges: | ||||||||||||||||||||
| Foreign currency derivatives | Cost of goods sold | $ | 533\u00a0 | $ | (292) | |||||||||||||||
| Amount\u00a0of\u00a0Loss (Gain) Recognized | ||||||||||||||||||||
| Location of Loss (Gain) Recognized in the Condensed Consolidated Statement of Operations | Six Months Ended June 30, | |||||||||||||||||||
| (Dollars in thousands) | 2026 | 2025 | ||||||||||||||||||
| Derivatives not designated as hedges: | ||||||||||||||||||||
| Foreign currency derivatives | Cost of goods sold | $ | 296\u00a0 | $ | (528) |
| June 30, 2026 | December 31, 2025 | ||||||||||
| (Dollars in thousands) | \u00a0\u00a0\u00a0Fair\u00a0Value | \u00a0\u00a0\u00a0Fair\u00a0Value | |||||||||
| Prepaid and other current assets | |||||||||||
| Foreign currency derivatives | $ | 193\u00a0 | $ | 217\u00a0 | |||||||
| Other accrued liabilities | |||||||||||
| Foreign currency derivatives | (60) | (26) | |||||||||
| Net asset | $ | 133\u00a0 | $ | 191\u00a0 |
| June 30, 2026 | December 31, 2025 | ||||||||||
| (Dollars in thousands) | Notional Amount | Notional Amount | |||||||||
| Derivative instruments designated as hedges: | |||||||||||
| Foreign currency derivatives | $ | 21,697\u00a0 | $ | \u2014\u00a0 | |||||||
| Derivative instruments not designated as hedges: | |||||||||||
| Foreign currency derivatives | $ | 30,668\u00a0 | $ | 35,498\u00a0 |
| \u00a0 | \u00a0 | Amount\u00a0of\u00a0Gain Recognized | ||||||||||||||||||
| Location of Realized Gain Recognized in the Condensed Consolidated Statement of Operations | Three Months Ended June 30, | |||||||||||||||||||
| (Dollars in thousands) | 2026 | 2025 | ||||||||||||||||||
| Derivatives designated as cash flow hedges: | ||||||||||||||||||||
| Foreign currency derivatives | Cost of goods sold | $ | (4) | $ | (188) | |||||||||||||||
| Amount\u00a0of\u00a0Gain Recognized | ||||||||||||||||||||
| Location of Realized Gain Recognized in the Condensed Consolidated Statement of Operations | Six Months Ended June 30, | |||||||||||||||||||
| (Dollars in thousands) | 2026 | 2025 | ||||||||||||||||||
| Derivatives designated as cash flow hedges: | ||||||||||||||||||||
| Foreign currency derivatives | Cost of goods sold | $ | (15) | $ | (245) |
| \u00a0 | \u00a0 | Amount\u00a0of Loss\u00a0(Gain) Recognized | ||||||||||||||||||
| Location of Loss (Gain) Recognized in the Condensed Consolidated Statement of Operations | Three Months Ended June 30, | |||||||||||||||||||
| (Dollars in thousands) | 2026 | 2025 | ||||||||||||||||||
| Derivatives not designated as hedges: | ||||||||||||||||||||
| Foreign currency derivatives | Cost of goods sold | $ | 533\u00a0 | $ | (292) | |||||||||||||||
| Amount\u00a0of\u00a0Loss (Gain) Recognized | ||||||||||||||||||||
| Location of Loss (Gain) Recognized in the Condensed Consolidated Statement of Operations | Six Months Ended June 30, | |||||||||||||||||||
| (Dollars in thousands) | 2026 | 2025 | ||||||||||||||||||
| Derivatives not designated as hedges: | ||||||||||||||||||||
| Foreign currency derivatives | Cost of goods sold | $ | 296\u00a0 | $ | (528) |
| June 30, 2026 | December 31, 2025 | ||||||||||
| (Dollars in thousands) | \u00a0\u00a0\u00a0Fair\u00a0Value | \u00a0\u00a0\u00a0Fair\u00a0Value | |||||||||
| Prepaid and other current assets | |||||||||||
| Foreign currency derivatives | $ | 193\u00a0 | $ | 217\u00a0 | |||||||
| Other accrued liabilities | |||||||||||
| Foreign currency derivatives | (60) | (26) | |||||||||
| Net asset | $ | 133\u00a0 | $ | 191\u00a0 |
| (Dollars in thousands) | Gains and Losses on Foreign Currency Cash Flow Hedges | Foreign Currency Translation | Total | ||||||||||||||
| Balance at March 31, 2026 | $ | (382) | $ | (11,618) | $ | (12,000) | |||||||||||
| Other comprehensive loss before reclassifications | (104) | (1,203) | (1,307) | ||||||||||||||
| Amounts reclassified from accumulated other comprehensive loss | (155) | \u2014\u00a0 | (155) | ||||||||||||||
| Net current period other comprehensive loss before tax | (259) | (1,203) | (1,462) | ||||||||||||||
| Deferred taxes | \u2014\u00a0 | \u2014\u00a0 | \u2014\u00a0 | ||||||||||||||
| Net current period other comprehensive loss after tax | (259) | (1,203) | (1,462) | ||||||||||||||
| Balance at June 30, 2026 | $ | (641) | $ | (12,821) | $ | (13,462) | |||||||||||
| Balance at March 31, 2025 | $ | 164\u00a0 | $ | (30,977) | $ | (30,813) | |||||||||||
| Other comprehensive income before reclassifications | 151\u00a0 | 21,981\u00a0 | 22,132\u00a0 | ||||||||||||||
| Amounts reclassified from accumulated other comprehensive income | (188) | \u2014\u00a0 | (188) | ||||||||||||||
| Net current period other comprehensive (loss) income before tax | (37) | 21,981\u00a0 | 21,944\u00a0 | ||||||||||||||
| Deferred taxes | (5) | \u2014\u00a0 | (5) | ||||||||||||||
| Net current period other comprehensive (loss) income after tax | (32) | 21,981\u00a0 | 21,949\u00a0 | ||||||||||||||
| Balance at June 30, 2025 | $ | 132\u00a0 | $ | (8,996) | $ | (8,864) |
| (Dollars in thousands) | Gains and Losses on Foreign Currency Cash Flow Hedges | Foreign Currency Translation | Total | ||||||||||||||
| Balance at December 31, 2025 | $ | 24\u00a0 | $ | (8,996) | $ | (8,972) | |||||||||||
| Other comprehensive loss before reclassifications | (499) | (3,825) | (4,324) | ||||||||||||||
| Amounts reclassified from accumulated other comprehensive loss | (166) | \u2014\u00a0 | (166) | ||||||||||||||
| Net current period other comprehensive loss before tax | (665) | (3,825) | (4,490) | ||||||||||||||
| Deferred taxes | \u2014\u00a0 | \u2014\u00a0 | \u2014\u00a0 | ||||||||||||||
| Net current period other comprehensive loss after tax | (665) | (3,825) | (4,490) | ||||||||||||||
| Balance at June 30, 2026 | $ | (641) | $ | (12,821) | $ | (13,462) | |||||||||||
| Balance at December 31, 2024 | $ | 214\u00a0 | $ | (43,573) | $ | (43,359) | |||||||||||
| Other comprehensive income before reclassifications | 151\u00a0 | 34,577\u00a0 | 34,728\u00a0 | ||||||||||||||
| Amounts reclassified from accumulated other comprehensive income | (245) | \u2014\u00a0 | (245) | ||||||||||||||
| Net current period other comprehensive (loss) income before tax | (94) | 34,577\u00a0 | 34,483\u00a0 | ||||||||||||||
| Deferred taxes | (12) | \u2014\u00a0 | (12) | ||||||||||||||
| Net current period other comprehensive (loss) income after tax | (82) | 34,577\u00a0 | 34,495\u00a0 | ||||||||||||||
| Balance at June 30, 2025 | $ | 132\u00a0 | $ | (8,996) | $ | (8,864) |
| (Dollars in thousands) | Gains and Losses on Foreign Currency Cash Flow Hedges | Foreign Currency Translation | Total | ||||||||||||||
| Balance at March 31, 2026 | $ | (382) | $ | (11,618) | $ | (12,000) | |||||||||||
| Other comprehensive loss before reclassifications | (104) | (1,203) | (1,307) | ||||||||||||||
| Amounts reclassified from accumulated other comprehensive loss | (155) | \u2014\u00a0 | (155) | ||||||||||||||
| Net current period other comprehensive loss before tax | (259) | (1,203) | (1,462) | ||||||||||||||
| Deferred taxes | \u2014\u00a0 | \u2014\u00a0 | \u2014\u00a0 | ||||||||||||||
| Net current period other comprehensive loss after tax | (259) | (1,203) | (1,462) | ||||||||||||||
| Balance at June 30, 2026 | $ | (641) | $ | (12,821) | $ | (13,462) | |||||||||||
| Balance at March 31, 2025 | $ | 164\u00a0 | $ | (30,977) | $ | (30,813) | |||||||||||
| Other comprehensive income before reclassifications | 151\u00a0 | 21,981\u00a0 | 22,132\u00a0 | ||||||||||||||
| Amounts reclassified from accumulated other comprehensive income | (188) | \u2014\u00a0 | (188) | ||||||||||||||
| Net current period other comprehensive (loss) income before tax | (37) | 21,981\u00a0 | 21,944\u00a0 | ||||||||||||||
| Deferred taxes | (5) | \u2014\u00a0 | (5) | ||||||||||||||
| Net current period other comprehensive (loss) income after tax | (32) | 21,981\u00a0 | 21,949\u00a0 | ||||||||||||||
| Balance at June 30, 2025 | $ | 132\u00a0 | $ | (8,996) | $ | (8,864) |
| (Dollars in thousands) | Gains and Losses on Foreign Currency Cash Flow Hedges | Foreign Currency Translation | Total | ||||||||||||||
| Balance at December 31, 2025 | $ | 24\u00a0 | $ | (8,996) | $ | (8,972) | |||||||||||
| Other comprehensive loss before reclassifications | (499) | (3,825) | (4,324) | ||||||||||||||
| Amounts reclassified from accumulated other comprehensive loss | (166) | \u2014\u00a0 | (166) | ||||||||||||||
| Net current period other comprehensive loss before tax | (665) | (3,825) | (4,490) | ||||||||||||||
| Deferred taxes | \u2014\u00a0 | \u2014\u00a0 | \u2014\u00a0 | ||||||||||||||
| Net current period other comprehensive loss after tax | (665) | (3,825) | (4,490) | ||||||||||||||
| Balance at June 30, 2026 | $ | (641) | $ | (12,821) | $ | (13,462) | |||||||||||
| Balance at December 31, 2024 | $ | 214\u00a0 | $ | (43,573) | $ | (43,359) | |||||||||||
| Other comprehensive income before reclassifications | 151\u00a0 | 34,577\u00a0 | 34,728\u00a0 | ||||||||||||||
| Amounts reclassified from accumulated other comprehensive income | (245) | \u2014\u00a0 | (245) | ||||||||||||||
| Net current period other comprehensive (loss) income before tax | (94) | 34,577\u00a0 | 34,483\u00a0 | ||||||||||||||
| Deferred taxes | (12) | \u2014\u00a0 | (12) | ||||||||||||||
| Net current period other comprehensive (loss) income after tax | (82) | 34,577\u00a0 | 34,495\u00a0 | ||||||||||||||
| Balance at June 30, 2025 | $ | 132\u00a0 | $ | (8,996) | $ | (8,864) |
| Three Months Ended June 30, | Six Months Ended June 30, | ||||||||||||||||||||||
| (Dollars\u00a0in\u00a0thousands, except per share amounts) | 2026 | 2025 | 2026 | 2025 | |||||||||||||||||||
| Numerator for basic and diluted loss per share: | |||||||||||||||||||||||
| Net loss | $ | (40,471) | $ | (86,886) | $ | (83,748) | $ | (126,237) | |||||||||||||||
| Denominator: | |||||||||||||||||||||||
| Weighted average common shares outstanding for basic calculation | 26,254,657\u00a0 | 25,918,456\u00a0 | 26,173,246\u00a0 | 25,878,066\u00a0 | |||||||||||||||||||
| Weighted average common shares outstanding for diluted calculation | 26,254,657\u00a0 | 25,918,456\u00a0 | 26,173,246\u00a0 | 25,878,066\u00a0 | |||||||||||||||||||
| Basic loss per share | $ | (1.54) | $ | (3.35) | $ | (3.20) | $ | (4.88) | |||||||||||||||
| Diluted loss per share | $ | (1.54) | $ | (3.35) | $ | (3.20) | $ | (4.88) |
| Three Months Ended June 30, | Six Months Ended June 30, | ||||||||||||||||||||||
| (Dollars\u00a0in\u00a0thousands, except per share amounts) | 2026 | 2025 | 2026 | 2025 | |||||||||||||||||||
| Numerator for basic and diluted loss per share: | |||||||||||||||||||||||
| Net loss | $ | (40,471) | $ | (86,886) | $ | (83,748) | $ | (126,237) | |||||||||||||||
| Denominator: | |||||||||||||||||||||||
| Weighted average common shares outstanding for basic calculation | 26,254,657\u00a0 | 25,918,456\u00a0 | 26,173,246\u00a0 | 25,878,066\u00a0 | |||||||||||||||||||
| Weighted average common shares outstanding for diluted calculation | 26,254,657\u00a0 | 25,918,456\u00a0 | 26,173,246\u00a0 | 25,878,066\u00a0 | |||||||||||||||||||
| Basic loss per share | $ | (1.54) | $ | (3.35) | $ | (3.20) | $ | (4.88) | |||||||||||||||
| Diluted loss per share | $ | (1.54) | $ | (3.35) | $ | (3.20) | $ | (4.88) |
| Three Months Ended June 30, | Six Months Ended June 30, | |||||||||||||||||||
| (in thousands) | 2026 | 2025 | 2026 | 2025 | ||||||||||||||||
| Loss (gain) on sale of assets | $ | 2\u00a0 | $ | \u2014\u00a0 | $ | (12,277) | $ | \u2014\u00a0 | ||||||||||||
| Bank charges | 219\u00a0 | 181\u00a0 | 548\u00a0 | 335\u00a0 | ||||||||||||||||
| Tax Receivable Agreement adjustment | \u2014\u00a0 | (3,802) | \u2014\u00a0 | (3,791) | ||||||||||||||||
| Other | 313\u00a0 | 1,195\u00a0 | 215\u00a0 | 1,477\u00a0 | ||||||||||||||||
| Total other expense (income), net | $ | 534\u00a0 | $ | (2,426) | $ | (11,514) | $ | (1,979) |
| Three Months Ended June 30, | Six Months Ended June 30, | |||||||||||||||||||
| (in thousands) | 2026 | 2025 | 2026 | 2025 | ||||||||||||||||
| Loss (gain) on sale of assets | $ | 2\u00a0 | $ | \u2014\u00a0 | $ | (12,277) | $ | \u2014\u00a0 | ||||||||||||
| Bank charges | 219\u00a0 | 181\u00a0 | 548\u00a0 | 335\u00a0 | ||||||||||||||||
| Tax Receivable Agreement adjustment | \u2014\u00a0 | (3,802) | \u2014\u00a0 | (3,791) | ||||||||||||||||
| Other | 313\u00a0 | 1,195\u00a0 | 215\u00a0 | 1,477\u00a0 | ||||||||||||||||
| Total other expense (income), net | $ | 534\u00a0 | $ | (2,426) | $ | (11,514) | $ | (1,979) |