| 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 | 16.4 | 16.4 | 16.1 | 16.1 | 24.8 | 20.4 | 20.4 | 19.3 |
| Depreciation and amortization | 3.9 | 11.7 | 3.8 | 11.6 | 3.9 | -10.9 | 11.2 | 3.8 |
| Asset impairment charges | | 0.0 | | 0.2 | | | | |
| Stock-based compensation | | 14.6 | | 14.9 | | | 14.0 | |
| Deferred taxes | | -4.5 | | -11.9 | | | -7.2 | |
| Change in working capital [+] | | 1.8 | | 29.3 | | | 59.8 | |
| Accounts receivable | | 6.4 | | 6.9 | | | 75.5 | |
| Inventories | | 1.1 | | 3.6 | | | -6.5 | |
| Accounts payable | | -6.1 | | 10.3 | | | -6.9 | |
| Deferred revenues | | 0.5 | | 8.6 | | | -2.3 | |
| Other operating activities | 9.0 | -10.7 | 46.4 | 6.2 | 66.6 | 63.7 | -25.0 | -28.6 |
| Cash from operations | 29.3 | 29.3 | 66.3 | 66.3 | 95.3 | 73.2 | 73.2 | -5.5 |
| |
| Capital expenditures [+] | 5.8 | -1.9 | 5.9 | -2.4 | 4.8 | 4.3 | -1.5 | 4.4 |
| Purchases of property and equipment | 1.9 | -1.9 | 2.4 | -2.4 | 1.8 | 1.5 | -1.5 | 1.4 |
| Capitalized product costs | 3.9 | | 3.5 | | 3.1 | 2.8 | | 3.0 |
| Purchases of short-term investments, net | 95.5 | -90.5 | | | | | | 60.0 |
| Purchases of short-term investments | 95.5 | -95.5 | | | | | | |
| Sales of short-term investments | | 5.0 | | | | | | 60.0 |
| Other cash from investing | -199.8 | -6.1 | -11.8 | -3.5 | -9.7 | 21.4 | 27.2 | -38.9 |
| Cash from investing | -98.4 | -98.4 | -5.9 | -5.9 | -4.8 | 25.7 | 25.7 | 25.6 |
| |
| Repurchase of common stock, net | -22.4 | -22.4 | -69.0 | -69.0 | 14.4 | | | |
| Option exercises | 0.0 | | 0.0 | | 0.0 | 0.0 | 0.0 | 0.0 |
| Other cash from financing | -5.4 | -5.4 | -4.2 | -4.2 | -49.4 | -32.0 | -32.0 | 11.3 |
| Cash from financing | -27.8 | -27.8 | -73.2 | -73.2 | -34.9 | -32.0 | -32.0 | 11.3 |
| |
| Free cash flow | 31.2 | 27.5 | 68.7 | 63.9 | 97.1 | 74.7 | 71.7 | -4.0 |
| Per share (diluted) | $0.31 | $0.24 | $0.62 | $0.55 | $0.78 | $0.59 | | ($0.01) |
| |
| Cash paid for interest | 0.1 | | 0.1 | | 0.0 | 0.0 | | |