| In millions, except per share items | Dec-31-22 | Dec-31-21 | Dec-31-20 | Dec-31-19 | Dec-31-18 | Dec-31-17 | Dec-31-16 | Dec-31-15 |
| | 10-K | 10-K | 10-K | 10-K | 10-K/A | 10-K | 10-K | 10-K |
| Net income | -561.5 | -382.8 | -570.5 | -35.0 | -10.6 | 21.0 | -10.1 | -7.6 |
| Depreciation and amortization [+] | 36.7 | 37.7 | 44.0 | 20.8 | 8.2 | | 0.0 | 0.0 |
| Depreciation | 36.7 | 37.7 | 44.0 | 20.8 | 0.0 | | 0.0 | 0.0 |
| Amortization of intangible assets | | | | | 8.2 | | | |
| Asset impairment charges | | | 349.2 | 8.6 | | | 0.3 | 0.3 |
| Stock-based compensation | 52.5 | 53.2 | 50.7 | 1.1 | | | | 1.9 |
| Deferred taxes | -1.7 | -2.7 | -9.7 | -5.3 | -2.1 | | | |
| Change in working capital [+] | 38.1 | 77.7 | -5.2 | 12.0 | 0.3 | 0.4 | 0.6 | 0.0 |
| Accounts receivable | -9.8 | -15.0 | -12.6 | 7.7 | | 0.0 | | 0.0 |
| Other current assets | -1.0 | -3.6 | -2.1 | -0.2 | | | 0.0 | 0.0 |
| Accounts payable | 12.0 | 8.7 | -39.1 | 5.5 | 0.2 | 0.1 | 0.1 | 0.0 |
| Accrued expenses | 50.1 | 64.8 | 40.8 | -1.0 | 0.1 | 0.3 | | |
| Deferred revenues | 21.1 | 26.1 | 8.6 | | | | 0.0 | -0.1 |
| Other | -34.4 | -3.3 | -0.7 | | | 0.0 | 0.5 | 0.0 |
| Other operating activities | 146.1 | 45.1 | -7.6 | -0.5 | 1.1 | -21.7 | 8.7 | 4.4 |
| Cash from operations | -289.8 | -171.9 | -149.0 | 1.7 | -3.2 | -0.4 | -0.6 | -0.9 |
| |
| Capital expenditures [+] | -6.0 | -7.5 | -0.2 | -0.2 | 0.0 | 0.0 | 0.0 | 0.0 |
| Purchases of property and equipment | -1.1 | -3.4 | -0.2 | -0.2 | | 0.0 | | |
| Capitalized product costs | -4.9 | -4.1 | 0.0 | | | | | |
| Purchases of intangible assets | | | | -0.3 | | | | |
| Acquisitions | | -22.9 | | | | | | |
| Other cash from investing | -6.4 | -45.8 | -1.2 | 1.9 | | | 0.2 | -0.3 |
| Cash from investing | -12.4 | -76.2 | -1.5 | 1.5 | 0.0 | 0.0 | 0.2 | -0.3 |
| |
| Issuance of common stock, net | | | | | 3.1 | 0.2 | 0.3 | 0.3 |
| Other cash from financing | 296.3 | 512.0 | 279.1 | 4.4 | 0.0 | 0.4 | 0.2 | 0.7 |
| Cash from financing | 296.3 | 512.0 | 279.1 | 4.4 | 3.1 | 0.6 | 0.5 | 1.1 |
| |
| Free cash flow | -290.9 | -175.3 | -149.2 | 1.6 | -3.2 | -0.4 | -0.6 | -0.9 |
| Per share (diluted) | ($1.62) | ($1.30) | ($3.35) | $0.07 | ($0.70) | ($0.19) | ($20.67) | ($149.49) |
| |
| Cash paid for interest | 13.8 | 8.0 | 5.4 | 0.2 | 0.6 | | 0.0 | 0.0 |