| In millions, except per share items | Dec-31-22 | Sep-30-22 | Jun-30-22 | Mar-31-22 | Dec-31-21 | Sep-30-21 | Jun-30-21 | Mar-31-21 |
| | 10-K | 10-Q | 10-Q | 10-Q | 10-K | 10-Q | 10-Q | 10-Q |
| Net income | -93.0 | -112.3 | -120.8 | -117.8 | -97.9 | -76.1 | -63.2 | -57.5 |
| Depreciation and amortization | 2.0 | 1.6 | 1.2 | 0.7 | 0.5 | 0.5 | 0.5 | 0.5 |
| Stock-based compensation | 10.0 | 8.5 | 7.0 | 5.5 | 4.7 | 4.2 | 4.1 | 4.1 |
| Change in working capital [+] | -7.9 | 1.5 | 9.0 | 13.0 | 7.9 | 5.8 | 2.2 | 0.8 |
| Accounts receivable | -15.4 | -10.6 | -8.2 | -2.4 | | | | |
| Inventories | -0.7 | -1.1 | -0.7 | -0.1 | | | | |
| Other current assets | 0.5 | 2.0 | 2.5 | 2.1 | 2.3 | 0.9 | 1.1 | 1.9 |
| Other | 7.7 | 11.2 | 15.3 | 13.4 | 5.6 | 4.9 | 1.0 | -1.0 |
| Other operating activities | 7.7 | 5.1 | 2.9 | 0.5 | -0.1 | -0.1 | -0.1 | 3.6 |
| Cash from operations | -81.2 | -95.7 | -100.7 | -98.1 | -84.9 | -65.7 | -56.6 | -48.5 |
| |
| Capital expenditures | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 | 0.0 |
| Purchases of intangible assets | | | -25.0 | | | | | |
| Purchases of short-term investments, net | -48.9 | -49.4 | -29.8 | | | | -0.1 | -4.1 |
| Purchases of short-term investments | -88.9 | -59.4 | -29.8 | | | | | |
| Sales of short-term investments | 40.0 | 10.0 | | | | | 12.0 | 8.0 |
| Cash from investing | -73.9 | -74.4 | -54.8 | 4.0 | 12.0 | 12.0 | -0.1 | -4.1 |
| |
| Option exercises | 4.9 | 2.1 | 1.7 | 0.5 | 0.4 | | 0.3 | 0.2 |
| Financing costs | | 0.0 | -1.3 | -1.3 | | | | |
| Other cash from financing | 125.0 | 109.0 | 150.1 | 157.1 | 98.3 | 103.9 | 58.7 | 4.8 |
| Cash from financing | 120.0 | 106.9 | 149.7 | 157.9 | 97.9 | 103.7 | 58.5 | 4.6 |
| |
| Free cash flow | -81.2 | -95.7 | -100.7 | -98.1 | -84.9 | -65.7 | -56.6 | -48.6 |
| Per share (diluted) | ($0.73) | ($0.91) | ($1.03) | ($1.04) | ($0.96) | ($0.79) | ($0.72) | ($0.66) |
| |
| Cash paid for interest | 6.1 | 6.2 | 4.7 | 3.1 | 2.0 | 0.3 | 0.4 | 0.4 |