| In millions, except per share items | Jun-30-23 | Mar-31-23 | Dec-31-22 | Sep-30-22 | Jun-30-22 | Mar-31-22 | Dec-31-21 | Sep-30-21 |
| | 10-Q | 10-Q | 10-K | 10-Q/A | 10-Q | 10-Q | 10-K | 10-Q/A |
| Net income | -32.7 | -49.9 | -55.4 | -76.2 | -71.9 | -72.4 | -139.1 | -142.5 |
| Depreciation and amortization | 14.3 | 14.6 | 14.9 | 15.3 | 15.9 | 17.2 | 18.7 | 19.8 |
| Stock-based compensation | 53.0 | 52.6 | 53.4 | 52.2 | 50.9 | 49.0 | 47.5 | 45.7 |
| Change in working capital [+] | 1.1 | 5.0 | -4.2 | 29.2 | 29.4 | 35.4 | 52.1 | 62.2 |
| Accounts receivable | -1.8 | -1.8 | -2.2 | -1.5 | -1.2 | -1.4 | -0.6 | -1.4 |
| Other current assets | -1.7 | -2.6 | 4.7 | 11.2 | -2.8 | -2.0 | -8.3 | -8.3 |
| Accounts payable | -1.0 | -0.3 | -0.1 | -0.1 | 0.1 | -0.9 | -0.8 | -0.4 |
| Other | 5.7 | 9.7 | -6.7 | 19.6 | 33.3 | 39.7 | 61.8 | 72.3 |
| Other operating activities | -18.0 | -4.3 | 11.7 | 33.3 | -15.4 | 102.5 | 111.7 | 102.1 |
| Cash from operations | 17.7 | 18.0 | 20.3 | 53.8 | 8.9 | 128.3 | 91.0 | 87.4 |
| |
| Capital expenditures [+] | -6.4 | -5.4 | -4.5 | -4.4 | -3.4 | -3.2 | -2.5 | -3.3 |
| Purchases of property and equipment | -1.2 | -1.4 | -1.4 | -1.7 | -1.4 | -1.2 | -1.0 | -0.9 |
| Capitalized product costs | -5.1 | -4.0 | -3.0 | -2.7 | -2.1 | -2.0 | -1.5 | -2.4 |
| Acquisitions | | | | | -1.1 | | | |
| Purchases of short-term investments, net | -149.0 | -178.6 | -83.9 | | | | | |
| Purchases of short-term investments | -234.5 | -178.6 | -83.9 | | | | | |
| Sales of short-term investments | 85.5 | | | | | | | |
| Cash from investing | -155.4 | -185.1 | -89.5 | -5.6 | -4.6 | -3.2 | -2.5 | -9.7 |
| |
| Repurchase of common stock, net | -0.2 | | 0.0 | | 0.1 | | 0.0 | |
| Option exercises | 1.0 | 2.1 | 3.1 | 11.3 | 13.6 | 15.3 | 18.5 | 15.4 |
| Other cash from financing | -2.5 | -1.0 | 1.1 | 14.2 | 17.5 | 18.1 | 64.0 | 59.2 |
| Cash from financing | -3.8 | -3.2 | -2.1 | 3.0 | 4.0 | 3.3 | 51.2 | 50.1 |
| |
| Free cash flow | 16.5 | 16.6 | 18.9 | 52.0 | 7.6 | 127.1 | 90.0 | 86.5 |
| Per share (diluted) | $0.11 | $0.13 | $0.16 | $0.51 | $0.06 | $1.32 | $0.94 | $0.91 |
| |
| Cash paid for interest | 9.1 | 9.2 | 9.2 | 9.4 | 9.4 | 9.4 | 9.6 | 10.5 |
| Cash paid for income taxes | 1.1 | 0.7 | 0.7 | 0.2 | 0.0 | 0.1 | 0.1 | 0.4 |