| In millions, except per share items | Mar-31-23 | Mar-31-22 | Mar-31-21 | Mar-31-20 | Mar-31-19 | Mar-31-18 | Mar-31-17 | Mar-31-16 |
| | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K |
| Net income | 187.2 | 247.3 | 168.8 | 126.8 | 99.0 | 106.3 | 74.4 | 55.9 |
| Depreciation and amortization | 7.4 | 5.5 | 4.1 | 3.3 | 3.0 | 1.9 | 1.9 | 2.0 |
| Asset impairment charges | 43.3 | | | | | | | |
| Stock-based compensation | 10.0 | 7.4 | 7.1 | 7.2 | 6.4 | 5.5 | 4.7 | 3.7 |
| Deferred taxes | 20.4 | 23.9 | 7.0 | 7.9 | 21.7 | 23.0 | 0.0 | 0.7 |
| Change in working capital [+] | -15.7 | 3.6 | 29.8 | -3.3 | 5.0 | -32.7 | -0.8 | 43.2 |
| Accounts payable | 1.7 | 0.7 | 0.2 | -0.7 | 0.9 | 0.3 | 0.7 | -1.0 |
| Deferred revenues | | | | | | -38.9 | | 43.2 |
| Other | -17.4 | 3.0 | 29.6 | -2.7 | 4.1 | 5.9 | -1.5 | 1.1 |
| Other operating activities | -26.0 | -118.2 | -28.6 | -25.5 | -23.4 | -7.3 | 1.4 | 3.6 |
| Cash from operations | 226.6 | 169.5 | 188.2 | 116.4 | 111.6 | 96.7 | 81.7 | 109.2 |
| |
| Capital expenditures | -4.7 | -8.5 | -18.6 | -2.0 | -5.4 | -2.3 | -1.3 | -0.9 |
| Purchases of property and equipment | -4.7 | -8.5 | -18.6 | -2.0 | -5.4 | -2.3 | -1.3 | -0.9 |
| Purchases of intangible assets | | | -1.0 | -4.2 | | | | |
| Acquisitions | -1.5 | -10.1 | | | | -5.2 | | |
| Other cash from investing | 184.2 | -51.9 | -402.1 | -43.8 | -13.8 | -14.3 | -15.4 | 3.4 |
| Cash from investing | 177.9 | -70.5 | -421.8 | -49.9 | -19.2 | -21.8 | -16.7 | 2.5 |
| |
| Cash dividends paid | -72.4 | -49.6 | -39.7 | -29.1 | -18.7 | -9.5 | | |
| Issuance of common stock, net | 43.7 | 73.8 | 473.3 | 147.1 | 193.5 | 125.2 | 203.2 | |
| Option exercises | 1.9 | 1.9 | 1.4 | 1.2 | 0.3 | 0.3 | 1.2 | 0.6 |
| Other cash from financing | -333.5 | -135.6 | -161.6 | -181.5 | -264.8 | -175.0 | -303.2 | -109.5 |
| Cash from financing | -364.1 | -113.2 | 270.7 | -64.7 | -90.2 | -59.7 | -101.2 | -110.1 |
| |
| Free cash flow | 221.8 | 161.0 | 169.5 | 114.4 | 106.3 | 94.4 | 80.4 | 108.3 |
| Per share (diluted) | $4.13 | $3.00 | $5.08 | $4.02 | $4.37 | $4.97 | $4.38 | |