| In millions, except per share items | Apr-30-23 | Apr-30-22 | Apr-30-21 | Apr-30-20 | Apr-30-19 | Apr-30-18 | Apr-30-17 | Apr-30-16 |
| | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K | 10-K |
| Net income | 209.5 | 326.4 | 114.5 | 104.9 | 102.7 | 133.8 | 84.2 | 30.9 |
| Depreciation and amortization | 68.3 | 63.5 | 61.8 | 55.3 | 46.5 | 48.6 | 47.3 | 36.2 |
| Asset impairment charges | 4.4 | 1.9 | | 0.4 | 106.6 | | | |
| Stock-based compensation | 36.3 | 29.2 | 27.2 | 22.8 | 23.4 | 21.5 | 19.0 | 18.9 |
| Deferred taxes | -14.4 | -17.0 | -14.1 | -9.3 | -27.8 | -6.6 | 6.6 | -13.8 |
| Change in working capital [+] | -15.5 | 56.0 | 49.6 | 28.4 | -2.2 | 43.0 | -38.5 | -3.4 |
| Accounts receivable | 33.5 | -138.6 | -67.3 | 34.2 | -30.6 | -53.4 | -42.3 | -16.6 |
| Other current assets | -5.9 | -9.5 | -3.9 | -1.0 | -0.1 | -2.1 | -1.8 | -6.3 |
| Income taxes | -15.3 | 12.8 | -1.8 | 1.2 | 0.2 | 32.4 | 0.2 | 0.7 |
| Other | -27.8 | 191.4 | 122.7 | -6.0 | 28.4 | 66.1 | 5.4 | 18.9 |
| Other operating activities | 55.3 | 41.6 | 12.5 | 33.8 | 9.7 | -21.2 | -12.4 | 0.1 |
| Cash from operations | 343.9 | 501.7 | 251.4 | 236.3 | 258.8 | 219.1 | 106.1 | 69.0 |
| |
| Capital expenditures | -70.4 | -49.4 | -31.1 | -41.5 | -46.7 | -42.0 | -50.1 | -26.1 |
| Purchases of property and equipment | -70.4 | -49.4 | -31.1 | -41.5 | -46.7 | -42.0 | -50.1 | -26.1 |
| Acquisitions | -254.8 | -133.8 | | -108.6 | | | -2.9 | -256.1 |
| Purchases of short-term investments, net | 12.3 | 10.5 | -33.8 | -35.6 | 4.3 | -6.8 | 32.3 | -0.3 |
| Purchases of short-term investments | -53.5 | -82.0 | -103.5 | -83.6 | -9.5 | -9.5 | -10.5 | -30.4 |
| Sales of short-term investments | 65.9 | 92.5 | 69.7 | 47.9 | 13.8 | 2.6 | 42.8 | 30.1 |
| Other cash from investing | -10.7 | -11.6 | 3.6 | -13.1 | -27.1 | 4.0 | 0.1 | 8.0 |
| Cash from investing | -323.5 | -184.3 | -61.4 | -198.8 | -69.5 | -44.8 | -20.6 | -274.6 |
| |
| Cash dividends paid | -33.0 | -26.8 | -22.5 | -22.8 | -23.5 | -23.0 | -23.3 | -21.8 |
| Repurchase of common stock, net | -95.5 | -96.3 | -30.4 | -92.4 | -37.4 | -33.1 | -28.8 | |
| Option exercises | 7.6 | 6.9 | 5.7 | 7.7 | 7.3 | 6.9 | 5.1 | 4.0 |
| Other cash from financing | -16.1 | -7.5 | -8.3 | 166.6 | 3.5 | -14.3 | 121.6 | 139.4 |
| Cash from financing | -152.2 | -137.4 | -66.9 | 43.7 | -64.6 | -77.3 | 64.4 | 113.5 |
| |
| Free cash flow | 273.5 | 452.3 | 220.3 | 194.9 | 212.1 | 177.1 | 56.1 | 42.8 |
| Per share (diluted) | $5.27 | $8.47 | $4.13 | $3.56 | $3.78 | $3.15 | $0.99 | $0.81 |
| |
| Cash paid for interest | 25.4 | 24.6 | 25.2 | 12.5 | 14.2 | 11.9 | 10.9 | 5.2 |
| Cash paid for income taxes | 134.7 | 107.6 | 55.3 | 54.9 | 58.4 | 37.5 | 32.5 | 33.2 |