| In millions, except per share items | Jun-30-23 | Jun-05-23 | Mar-31-23 | Mar-05-23 | Dec-31-22 | Sep-30-22 | Sep-05-22 | Jun-30-22 |
| | 10-Q | 8-K | 10-Q | 8-K | 10-K | 10-Q | 8-K | 10-Q |
| Net income | -19.0 | -19.0 | -19.0 | -19.0 | -10.7 | -23.0 | -23.0 | 4.1 |
| Depreciation and amortization [+] | | | | | | -3.6 | | |
| Depreciation | | | | | | -3.6 | | |
| Asset impairment charges | 4.0 | | 0.2 | | | 0.2 | | 0.0 |
| Stock-based compensation | 1.7 | | 4.4 | | -15.6 | 5.3 | | 4.9 |
| Change in working capital [+] | -4.7 | | -2.1 | | 25.6 | -11.0 | | -5.5 |
| Accounts receivable | -0.7 | | 3.7 | | 3.1 | -3.2 | | -3.9 |
| Inventories | -0.4 | | -3.0 | | 12.2 | -3.1 | | -6.5 |
| Other current assets | 0.1 | | 0.0 | | 2.2 | -0.2 | | -0.6 |
| Other | -3.6 | | -2.8 | | 8.1 | -4.5 | | 5.6 |
| Other operating activities | 2.8 | | 1.1 | | -7.4 | 8.4 | | -25.8 |
| Cash from operations | -15.2 | | -15.5 | | -8.2 | -23.7 | | -22.3 |
| |
| Capital expenditures | -0.5 | | -1.6 | | 17.4 | -4.5 | | -0.7 |
| Purchases of property and equipment | -0.5 | | -1.6 | | 17.4 | -4.5 | | -0.7 |
| Acquisitions | | | | | 71.6 | -33.6 | | -2.0 |
| Purchases of short-term investments, net | 11.0 | | -16.5 | | | | | |
| Purchases of short-term investments | | | -19.0 | | | | | |
| Sales of short-term investments | 11.0 | | 2.5 | | | | | |
| Other cash from investing | | | | | -138.3 | | | |
| Cash from investing | 10.5 | | -18.1 | | -49.3 | -38.1 | | -2.8 |
| |
| Option exercises | 0.0 | | 0.2 | | 0.1 | 0.6 | | 0.9 |
| Other cash from financing | -0.3 | | 0.2 | | 0.1 | 1.0 | | 1.5 |
| Cash from financing | -0.3 | | 0.1 | | 0.0 | 0.4 | | 0.6 |
| |
| Free cash flow | -15.7 | | -17.2 | | 9.2 | -28.2 | | -23.1 |
| Per share (diluted) | ($0.08) | | ($0.09) | | $0.05 | ($0.15) | | ($0.12) |
| |