| In millions, except per share items | Dec-31-16 | Dec-31-15 | Mar-31-14 | Mar-31-13 | Mar-31-12 | Mar-31-11 | Mar-31-10 | Mar-31-09 |
| Revenues | 803.4 | 768.3 | 519.4 | 450.8 | 370.3 | 283.4 | 232.6 | 230.4 |
| Revenue growth | 4.6% | | 15.2% | 21.7% | 30.7% | 21.9% | 1.0% | 5.2% |
| Cost of goods sold | 393.0 | 392.7 | 271.9 | 237.6 | 197.9 | 144.9 | 118.4 | 116.6 |
| Gross profit | 410.5 | 375.7 | 247.5 | 213.2 | 172.4 | 138.5 | 114.2 | 113.8 |
| Gross margin | 51.1% | 48.9% | 47.6% | 47.3% | 46.6% | 48.9% | 49.1% | 49.4% |
| Sales and marketing | 130.0 | 121.0 | 96.3 | 85.3 | 73.9 | 64.3 | 52.5 | 52.3 |
| General and administrative | 126.6 | 128.7 | 74.2 | 62.2 | 47.9 | 38.2 | 32.1 | 26.7 |
| EBITA | 146.0 | 72.9 | 47.9 | 44.5 | 40.1 | 30.0 | 24.7 | 30.1 |
| EBITA margin | 18.2% | 9.5% | 9.2% | 9.9% | 10.8% | 10.6% | 10.6% | 13.1% |
| Amortization of intangibles | 22.8 | 24.4 | 8.0 | 5.8 | 5.1 | 4.1 | 1.6 | 1.0 |
| EBIT | 123.2 | 48.5 | 39.9 | 38.7 | 35.0 | 25.9 | 23.1 | 29.1 |
| EBIT margin | 15.3% | 6.3% | 7.7% | 8.6% | 9.5% | 9.1% | 9.9% | 12.6% |
| Pre-tax income | 55.6 | -99.4 | 48.7 | 23.3 | 25.3 | 18.5 | 18.1 | 31.6 |
| Income taxes | -11.0 | -15.2 | -18.7 | -18.0 | -15.2 | -9.7 | 6.2 | 10.1 |
| Tax rate | | 15.3% | | | | | 34.3% | 32.0% |
| Earnings from continuing ops | 91.2 | -119.0 | 23.9 | 23.4 | 22.9 | 17.6 | 12.3 | 21.5 |
| Earnings from discontinued ops | | | | | 2.4 | 0.4 | -0.4 | |
| Net income | 91.2 | -119.0 | 23.9 | 23.4 | 25.3 | 18.1 | 11.9 | 21.5 |
| Net margin | 11.4% | -15.5% | 4.6% | 5.2% | 6.8% | 6.4% | 5.1% | 9.3% |
| |
| Diluted EPS | $2.23 | ($2.84) | $0.65 | $0.64 | $0.66 | $0.54 | $0.78 | $1.30 |
| Shares outstanding (diluted) | 40.9 | 41.9 | 37.0 | 36.3 | 34.7 | 32.8 | 15.7 | 16.6 |
| |
| EBIT is a non-GAAP figure that excludes all non-recurring expenses: restructuring costs, asset impairments, IPR&D writeoffs, and other unusual charges. |