 
    
                                                | (in millions $) | 30 Oct 2024 | 30 Jun 2024 | 31 Mar 2024 | 31 Dec 2023 | 
|---|---|---|---|---|
| Current assets | ||||
| Cash | $26.03 | $10.24 | $30.84 | |
| Short term investments | ||||
| Net receivables | $80.35 | $84.4 | $90.97 | $88.45 | 
| Inventory | $55.83 | $59.71 | $56.34 | $54.49 | 
| Total current assets | $157.62 | $178.33 | $167.69 | $183.63 | 
| Long term investments | ||||
| Property, plant & equipment | $110.69 | $115.56 | $121.86 | $124.47 | 
| Goodwill & intangible assets | $84.84 | $87.63 | $90.43 | |
| Total noncurrent assets | $203.39 | $212.72 | $218.35 | |
| Total investments | ||||
| Total assets | $353.23 | $381.72 | $380.41 | $401.98 | 
| Current liabilities | ||||
| Accounts payable | $30.46 | $39.4 | $38.83 | $33.38 | 
| Deferred revenue | ||||
| Short long term debt | $11.18 | $12.22 | $13.2 | |
| Total current liabilities | $64.1 | $82.96 | $73.85 | $82.75 | 
| Long term debt | $318.47 | $347.43 | $348 | $353.11 | 
| Total noncurrent liabilities | $348.47 | $349.87 | $354.86 | |
| Total debt | $358.61 | $360.23 | $366.32 | |
| Total liabilities | $410.79 | $431.44 | $423.72 | $437.61 | 
| Shareholders' equity | ||||
| Retained earnings | -$858.47 | -$848.33 | -$834.28 | -$826.23 | 
| Other shareholder equity | -$5.03 | -$5.02 | -$5.07 | -$4.86 | 
| Total shareholder equity | -$49.72 | -$43.31 | -$35.63 | |
| (in millions $) | 31 Dec 2023 | 31 Jan 2023 | 31 Dec 2021 | 31 Dec 2020 | 
|---|---|---|---|---|
| Current assets | ||||
| Cash | $30.84 | $17.45 | $21.51 | $68.86 | 
| Short term investments | ||||
| Net receivables | $88.45 | $106.02 | $64.03 | $41.23 | 
| Inventory | $54.49 | $62.05 | $42.18 | $38.4 | 
| Total current assets | $183.63 | $196.72 | $139.3 | $166.16 | 
| Long term investments | ||||
| Property, plant & equipment | $124.47 | $126.6 | $123.52 | $140.6 | 
| Goodwill & intangible assets | $90.43 | $101.94 | $116.41 | $132.52 | 
| Total noncurrent assets | $218.35 | $230.11 | $242.31 | $276.44 | 
| Total investments | ||||
| Total assets | $401.98 | $426.83 | $381.61 | $442.6 | 
| Current liabilities | ||||
| Accounts payable | $33.38 | $42.21 | $28.68 | $18.14 | 
| Deferred revenue | ||||
| Short long term debt | $13.2 | $10.4 | $9.25 | $8.14 | 
| Total current liabilities | $82.75 | $81 | $56.45 | $43.41 | 
| Long term debt | $353.11 | $338.03 | $362.81 | $376.12 | 
| Total noncurrent liabilities | $354.86 | $369.34 | $364.43 | $378.78 | 
| Total debt | $366.32 | $377.8 | $372.07 | $384.25 | 
| Total liabilities | $437.61 | $450.34 | $420.88 | $422.19 | 
| Shareholders' equity | ||||
| Retained earnings | -$826.23 | -$794.02 | -$808.41 | -$743.84 | 
| Other shareholder equity | -$4.86 | -$4.83 | -$4.54 | -$4.5 | 
| Total shareholder equity | -$35.63 | -$23.51 | -$39.27 | $20.41 | 
| (in millions $) | 30 Oct 2024 | 30 Jun 2024 | 31 Mar 2024 | 31 Dec 2023 | 
|---|---|---|---|---|
| Revenue | ||||
| Total revenue | $138.16 | $132.4 | $142.12 | $144.07 | 
| Cost of revenue | $112.05 | $116.01 | $118.51 | |
| Gross Profit | $24.71 | $20.35 | $26.11 | $25.56 | 
| Operating activities | ||||
| Research & development | ||||
| Selling, general & administrative | $12.48 | $12.27 | $12.81 | |
| Total operating expenses | $21.39 | $21.91 | $21.77 | $23.34 | 
| Operating income | -$1.55 | $4.34 | $2.22 | |
| Income from continuing operations | ||||
| EBIT | -$1.12 | $4.89 | $2.68 | |
| Income tax expense | $0.07 | $0.14 | $0.15 | $0.17 | 
| Interest expense | -$12.68 | $12.78 | $12.79 | $12.81 | 
| Net income | ||||
| Net income | -$10.14 | -$14.04 | -$8.05 | -$10.3 | 
| Income (for common shares) | -$14.04 | -$8.05 | -$10.3 | |
| (in millions $) | 31 Dec 2023 | 31 Dec 2022 | 31 Dec 2021 | 31 Dec 2020 | 
|---|---|---|---|---|
| Revenue | ||||
| Total revenue | $609.53 | $593.38 | $349.42 | $310.85 | 
| Cost of revenue | $490.75 | $457.09 | $307.99 | $302.16 | 
| Gross Profit | $118.78 | $136.29 | $41.43 | $8.69 | 
| Operating activities | ||||
| Research & development | ||||
| Selling, general & administrative | $59.82 | $51.65 | $45.3 | $49.35 | 
| Total operating expenses | $100.77 | $92.27 | $91.44 | $391.86 | 
| Operating income | $18.01 | $44.02 | -$50.02 | -$383.17 | 
| Income from continuing operations | ||||
| EBIT | $19.49 | $47.42 | -$32.07 | -$344.65 | 
| Income tax expense | $0.58 | $0.55 | -$0.03 | -$2.46 | 
| Interest expense | $51.12 | $32.49 | $32.53 | $36.76 | 
| Net income | ||||
| Net income | -$32.21 | $14.39 | -$64.58 | -$378.95 | 
| Income (for common shares) | -$32.21 | $14.39 | -$64.58 | -$378.95 | 
| (in millions $) | 30 Oct 2024 | 30 Jun 2024 | 31 Mar 2024 | 31 Dec 2023 | 
|---|---|---|---|---|
| Net income | -$14.04 | -$8.05 | -$10.3 | |
| Operating activities | ||||
| Depreciation | $12.73 | $12.82 | $13.29 | |
| Business acquisitions & disposals | ||||
| Stock-based compensation | $0.81 | $0.58 | $0.58 | |
| Total cash flows from operations | $12.89 | -$8.84 | $24.32 | |
| Investing activities | ||||
| Capital expenditures | -$2.63 | -$5.46 | -$8.44 | |
| Investments | ||||
| Total cash flows from investing | -$11.18 | -$2.63 | -$5.46 | -$8.44 | 
| Financing activities | ||||
| Dividends paid | ||||
| Sale and purchase of stock | $6.78 | |||
| Net borrowings | -$1.09 | -$6.06 | $2.84 | |
| Total cash flows from financing | -$2.12 | $5.5 | -$6.22 | $2.7 | 
| Effect of exchange rate | -$0.1 | $0.03 | -$0.08 | $0.1 | 
| Change in cash and equivalents | -$15.19 | $15.79 | -$20.6 | $18.68 | 
| (in millions $) | 31 Dec 2023 | 31 Dec 2022 | 31 Dec 2021 | 31 Dec 2020 | 
|---|---|---|---|---|
| Net income | -$32.21 | $14.39 | -$64.58 | -$378.95 | 
| Operating activities | ||||
| Depreciation | $53.18 | $48.92 | $53.04 | $57.8 | 
| Business acquisitions & disposals | ||||
| Stock-based compensation | $2.17 | $2.44 | $5.41 | $9.59 | 
| Total cash flows from operations | $45.51 | $16.67 | -$40.42 | -$4.9 | 
| Investing activities | ||||
| Capital expenditures | -$23.16 | -$25.42 | -$11.92 | -$1.78 | 
| Investments | ||||
| Total cash flows from investing | -$23.16 | -$25.42 | -$11.92 | -$1.78 | 
| Financing activities | ||||
| Dividends paid | ||||
| Sale and purchase of stock | ||||
| Net borrowings | -$8.5 | $5.82 | $5.67 | -$15.84 | 
| Total cash flows from financing | -$8.89 | $4.85 | $5.05 | -$17.39 | 
| Effect of exchange rate | -$0.06 | -$0.17 | -$0.07 | -$0.06 | 
| Change in cash and equivalents | $13.39 | -$4.06 | -$47.35 | -$24.13 | 
| Market cap | $30.16M | 
|---|---|
| Enterprise value | N/A | 
| Shares outstanding | 42.36M | 
| Revenue | $556.75M | 
|---|---|
| EBITDA | N/A | 
| EBIT | N/A | 
| Net Income | -$42.54M | 
| Revenue Q/Q | -1.75% | 
| Revenue Y/Y | -11.92% | 
| P/E ratio | -0.71 | 
|---|---|
| EV/Sales | N/A | 
| EV/EBITDA | N/A | 
| EV/EBIT | N/A | 
| P/S ratio | 0.05 | 
| P/B ratio | N/A | 
| Book/Share | N/A | 
| Cash/Share | N/A | 
| EPS | -$1.00 | 
|---|---|
| ROA | -11.22% | 
| ROE | N/A | 
| Debt/Equity | -12.28 | 
|---|---|
| Net debt/EBITDA | N/A | 
| Current ratio | 2.46 | 
| Quick ratio | 1.59 |