| In millions, except per share items | Dec-31-18 | Dec-31-17 | Dec-31-16 | Dec-31-15 | Dec-31-14 | Dec-31-13 | Dec-31-12 | Dec-31-11 |
| | 10-K | 10-K | 10-K | 10-K/A | 10-K/A | 10-K | 10-K | 10-K |
| Revenues | 472.2 | 476.1 | 355.6 | 334.3 | 267.8 | 219.3 | 177.3 | 135.6 |
| Revenue growth | -0.8% | 33.9% | 6.4% | 24.8% | 22.1% | 23.7% | 30.7% | 17.9% |
| Cost of goods sold | 154.8 | 173.7 | 129.0 | 117.2 | 100.2 | 81.9 | 64.6 | 55.7 |
| Gross profit | 317.4 | 302.4 | 226.5 | 217.1 | 167.6 | 137.4 | 112.6 | 80.0 |
| Gross margin | 67.2% | 63.5% | 63.7% | 65.0% | 62.6% | 62.6% | 63.5% | 59.0% |
| Selling, general and administrative [+] | 174.7 | 136.3 | 117.4 | 104.6 | 87.8 | 72.3 | 59.2 | 41.6 |
| Sales and marketing | 73.1 | 64.1 | 57.1 | 50.5 | 44.9 | 34.7 | 30.3 | 20.7 |
| General and administrative | 101.6 | 72.2 | 60.3 | 54.1 | 42.9 | 37.6 | 28.8 | 20.9 |
| Research and development | 53.1 | 56.4 | 44.7 | 43.0 | 27.7 | 21.5 | 18.8 | 13.5 |
| Other operating expenses | | | | 29.5 | 21.0 | | | |
| EBITDA [+] | 145.1 | 159.1 | 110.3 | 74.2 | 56.4 | 47.0 | 37.6 | 28.1 |
| EBITDA growth | -8.8% | 44.3% | 48.5% | 31.6% | 20.0% | 25.2% | 33.7% | 40.7% |
| EBITDA margin | 30.7% | 33.4% | 31.0% | 22.2% | 21.1% | 21.4% | 21.2% | 20.7% |
| Depreciation | 30.0 | 23.5 | 24.0 | 18.6 | 13.6 | 5.9 | 12.0 | 11.8 |
| EBITA | 115.1 | 135.6 | 86.3 | 55.6 | 42.8 | 41.1 | 25.5 | 16.3 |
| EBITA margin | 24.4% | 28.5% | 24.3% | 16.6% | 16.0% | 18.7% | 14.4% | 12.0% |
| Amortization of intangibles | 25.5 | 25.8 | 21.9 | 15.7 | 11.8 | 9.1 | 6.6 | 2.7 |
| EBIT [+] | 89.6 | 109.8 | 64.4 | 39.9 | 31.0 | 32.0 | 18.9 | 13.6 |
| EBIT growth | -18.4% | 70.5% | 61.2% | 28.6% | -2.9% | 68.9% | 39.6% | 68.8% |
| EBIT margin | 19.0% | 23.1% | 18.1% | 11.9% | 11.6% | 14.6% | 10.7% | 10.0% |
| Non-recurring items [+] | 45.2 | 39.4 | 38.3 | | | | | |
| Asset impairment | 41.5 | 37.9 | 37.2 | | | | | |
| Interest expense, net [+] | 4.2 | 6.1 | 2.3 | 1.8 | 1.6 | 1.3 | 1.7 | 0.5 |
| Interest expense | 10.1 | 7.3 | 2.7 | 1.9 | 1.6 | 1.3 | 1.8 | 0.5 |
| Interest income | 5.8 | 1.1 | 0.4 | 0.2 | 0.0 | 0.0 | 0.0 | 0.0 |
| Other income (expense), net [+] | 0.0 | -0.3 | 1.1 | -0.2 | 0.7 | 0.2 | 0.4 | 0.4 |
| Change in fair value of warrants | | | | | | | | 0.4 |
| Other non-operating gains/losses | | | | | | | 0.4 | |
| Other | 0.0 | -0.3 | 1.1 | -0.2 | 0.7 | 0.2 | 0.3 | |
| Pre-tax income | 40.1 | 64.0 | 24.8 | 38.0 | 30.2 | 30.9 | 17.6 | 13.5 |
| Income taxes | 14.1 | 9.6 | 8.9 | 15.0 | 11.9 | 9.2 | 7.1 | -19.9 |
| Tax rate | 35.3% | 15.0% | 36.0% | 39.6% | 39.6% | 29.8% | 40.4% | |
| Net income | 26.0 | 54.4 | 15.9 | 23.0 | 18.2 | 21.7 | 8.2 | 27.1 |
| Net margin | 5.5% | 11.4% | 4.5% | 6.9% | 6.8% | 9.9% | 4.6% | 20.0% |
| |
| Basic EPS [+] | $0.65 | $1.41 | $0.44 | $0.64 | $0.52 | $0.65 | $0.45 | $17.65 |
| Growth | -53.9% | 223.8% | -31.9% | 23.6% | -19.6% | 42.8% | -97.4% | -212.4% |
| Diluted EPS [+] | $0.64 | $1.38 | $0.43 | $0.63 | $0.50 | $0.62 | $0.34 | $1.35 |
| Growth | -53.5% | 222.9% | -31.9% | 24.9% | -18.4% | 83.2% | -75.1% | -108.6% |
| |
| Shares outstanding (basic) [+] | 39.8 | 38.4 | 36.4 | 35.8 | 35.1 | 33.6 | 18.1 | 1.5 |
| Growth | 3.6% | 5.6% | 1.7% | 1.8% | 4.5% | 85.4% | 1080.9% | 0.5% |
| Shares outstanding (diluted) [+] | 40.4 | 39.4 | 37.2 | 36.6 | 36.3 | 35.3 | 24.4 | 20.1 |
| Growth | 2.6% | 5.9% | 1.7% | 0.7% | 3.0% | 44.5% | 21.5% | 1214.5% |
| |
| EBIT is a non-GAAP figure that excludes all non-recurring expenses: restructuring costs, asset impairments, IPR&D writeoffs, and other unusual charges. |