| In millions, except per share items | Dec-31-22 | Sep-30-22 | Sep-05-22 | Jun-30-22 | Mar-31-22 | Dec-31-21 | Sep-30-21 | Sep-05-21 |
| | 10-Q | 10-K | 8-K | 10-Q | 10-Q | 10-Q | 10-K | 8-K |
| Net income | -32.3 | -27.3 | | -12.8 | -10.5 | 1.7 | 4.2 | |
| Depreciation and amortization | 8.9 | 9.1 | | 9.3 | 8.9 | 8.5 | 8.0 | |
| Stock-based compensation | | -1.7 | | -0.8 | -1.1 | | 0.0 | |
| Deferred taxes | | 2.1 | | | -1.9 | | -0.1 | |
| Change in working capital [+] | | 20.0 | | | 2.0 | | -2.4 | |
| Inventories | | 3.0 | | | -0.8 | | 0.0 | |
| Other current assets | | 1.5 | | | -0.4 | | -0.4 | |
| Accounts payable | | -0.1 | | | 0.3 | | -0.3 | |
| Accrued expenses | | 4.2 | | | 3.6 | | -2.3 | |
| Income taxes | | 11.2 | | | -0.7 | | 0.5 | |
| Other operating activities | -10.4 | -11.9 | | -2.2 | -4.5 | 1.8 | 6.3 | |
| Cash from operations | -13.5 | -9.7 | | -6.3 | -7.0 | 13.2 | 15.9 | |
| |
| Capital expenditures | 5.9 | 5.7 | | 7.4 | 7.4 | 8.5 | 6.5 | |
| Purchases of property and equipment | 5.9 | 5.7 | | | 7.4 | 8.5 | 6.5 | |
| Acquisitions | | | | | | | 39.6 | |
| Sales of short-term investments, net [+] | | 9.6 | | | 53.1 | 45.8 | 54.0 | |
| Purchases of short-term investments | | | | | | | 22.6 | |
| Sales of short-term investments | | 9.6 | | | 7.6 | 17.3 | | |
| Other cash from investing | -8.6 | -8.2 | | | -137.3 | -137.9 | -136.4 | |
| Cash from investing | 2.9 | 7.1 | | -36.2 | -36.2 | -43.1 | -36.4 | |
| |
| Issuance of common stock, net | 1.3 | 1.2 | | | 1.2 | 3.3 | 3.0 | |
| Financing costs | 0.4 | | | | | | | |
| Other cash from financing | 18.1 | -1.6 | | | 8.1 | 7.1 | 7.1 | |
| Cash from financing | 19.1 | -0.4 | | 9.4 | 9.4 | 10.3 | 10.2 | |
| |
| Free cash flow | -7.6 | -4.0 | | 1.1 | 0.4 | 21.7 | 22.4 | |
| Per share (diluted) | ($0.55) | ($0.29) | | $0.08 | $0.03 | $1.56 | $1.62 | |
| |
| Cash paid for income taxes | 0.4 | 0.4 | | | 0.5 | 0.1 | 0.1 | |