| 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 |
| | 8-K | 10-Q | 10-Q | 10-Q | 10-K/A | 10-Q | 10-Q | 10-Q |
| Net income | 8.5 | -40.1 | -17.1 | -57.3 | -131.5 | -18.7 | -140.8 | -157.8 |
| Depreciation and amortization [+] | -9.1 | 10.1 | 2.9 | 10.4 | 7.3 | 8.0 | -7.9 | 7.6 |
| Amortization of intangible assets | 10.1 | 2.4 | 2.9 | 2.4 | 1.3 | 1.2 | -15.0 | |
| Stock-based compensation | 4.8 | 4.9 | | 6.6 | 7.3 | 4.5 | 3.7 | 3.3 |
| Deferred taxes | -1.8 | -9.6 | | -3.7 | 6.1 | -0.1 | -63.2 | -2.0 |
| Change in working capital [+] | -91.5 | 11.7 | | -102.9 | 69.8 | -19.7 | -82.5 | -132.5 |
| Inventories | -2.4 | -0.2 | | -5.4 | 3.8 | -5.2 | 3.7 | 3.7 |
| Other | -89.1 | 11.9 | | -97.5 | 66.0 | -14.5 | -86.2 | -136.2 |
| Other operating activities | 124.0 | 67.5 | 0.3 | 113.9 | 109.0 | 91.5 | 332.6 | 238.5 |
| Cash from operations | 34.9 | 44.5 | -13.9 | -33.0 | 68.0 | 65.5 | 41.9 | -42.9 |
| |
| Capital expenditures | 0.0 | -7.5 | 0.0 | -5.2 | -7.6 | -7.7 | -6.9 | -5.1 |
| Purchases of property and equipment | | -7.5 | | -5.2 | -7.6 | -7.7 | -6.9 | -5.1 |
| Purchases of intangible assets | | -11.6 | | -11.1 | -12.3 | -12.4 | -12.3 | -17.4 |
| Acquisitions | | | | -0.3 | -88.9 | -0.3 | -150.1 | |
| Purchases of short-term investments | -3,380.4 | | | | | | | |
| Purchases of short-term investments | -3,380.4 | | | | | | | |
| Other cash from investing | 3,373.4 | -30.9 | | -5.1 | -15.5 | -13.9 | 1.5 | -11.4 |
| Cash from investing | -7.0 | -50.0 | 0.0 | -21.7 | -124.3 | -34.3 | -167.8 | -33.9 |
| |
| Option exercises | | | | | | 0.8 | 1.0 | 2.7 |
| Other cash from financing | -3.2 | -3.4 | | -11.2 | -4.7 | -2.1 | -2.1 | -92.1 |
| Cash from financing | -3.2 | -3.4 | 0.0 | -11.2 | -4.7 | -2.9 | -3.1 | -94.8 |
| |
| Free cash flow | 34.9 | 37.0 | -13.9 | -38.2 | 60.4 | 57.8 | 35.0 | -48.0 |
| Per share (diluted) | $0.49 | $0.55 | ($0.21) | ($0.57) | $0.91 | $0.86 | $0.52 | ($0.75) |