Financial Summary (All financials)
| In millions, except per share items | Apr-30-19 | Apr-30-18 | Apr-30-17 | Apr-30-16 | Apr-30-15 | Apr-30-14 | Apr-30-13 | Apr-30-12 |
| Revenues | 669.1 | 612.2 | 587.8 | 567.9 | 530.3 | 489.2 | 464.7 | 430.2 |
| Revenue growth | 9.3% | 4.2% | 3.5% | 7.1% | 8.4% | 5.3% | 8.0% | 13.4% |
| Cost of goods sold | 343.9 | 315.3 | 304.9 | 304.9 | 272.4 | 251.3 | 239.0 | 223.4 |
| Gross profit | 325.2 | 296.9 | 282.8 | 263.0 | 257.9 | 237.9 | 225.7 | 206.8 |
| Gross margin | 48.6% | 48.5% | 48.1% | 46.3% | 48.6% | 48.6% | 48.6% | 48.1% |
| Selling, general and administrative | 107.2 | 99.0 | 91.9 | 92.2 | 83.8 | 78.6 | 73.2 | 67.7 |
| EBIT | 67.6 | 44.6 | 37.5 | 22.2 | 50.0 | 33.7 | 50.7 | 52.9 |
| EBIT margin | 10.1% | 7.3% | 6.4% | 3.9% | 9.4% | 6.9% | 10.9% | 12.3% |
| Pre-tax income | 59.9 | 38.9 | 32.2 | 18.5 | 47.0 | 33.7 | 50.7 | 52.8 |
| Income taxes | 12.2 | 2.4 | 12.0 | 6.9 | 17.5 | 12.5 | 18.5 | 19.8 |
| Tax rate | 20.4% | 6.2% | 37.3% | 37.3% | 37.3% | 37.3% | 36.5% | 37.5% |
| Net income | 47.6 | 36.5 | 20.2 | 11.6 | 29.5 | 21.1 | 32.1 | 32.9 |
| Net margin | 7.1% | 6.0% | 3.4% | 2.0% | 5.6% | 4.3% | 6.9% | 7.7% |
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| Diluted EPS | $6.73 | $4.90 | $2.49 | $1.33 | $3.25 | $2.25 | $3.36 | $3.24 |
| Shares outstanding (diluted) | 7.1 | 7.4 | 8.1 | 8.7 | 9.0 | 9.4 | 9.6 | 10.2 |
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| EBIT is a non-GAAP figure that excludes all non-recurring expenses: restructuring costs, asset impairments, IPR&D writeoffs, and other unusual charges. |
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