| In millions, except per share items | Dec-31-16 | Dec-31-15 | Dec-31-14 | Dec-31-13 |
| | 10-K | 10-K | S-1/A | 10-K |
| Revenues: |
| North America | 229.7 | 183.9 | | |
| International | 41.1 | | | |
| Total revenues | 270.8 | 183.9 | 132.4 | 55.7 |
| Revenue growth [+] | 47.2% | 39.0% | 137.6% | |
| North America | 24.9% | | | |
| Cost of goods sold | 140.7 | 81.0 | 58.2 | 23.1 |
| Gross profit | 130.1 | 102.9 | 74.2 | 32.7 |
| Gross margin | 48.0% | 56.0% | 56.1% | 58.6% |
| Selling, general and administrative [+] | 70.3 | 64.8 | 39.9 | 7.9 |
| Sales and marketing | 32.0 | 18.5 | 12.6 | 5.9 |
| General and administrative | 38.2 | 46.3 | 27.2 | 2.0 |
| Other operating expenses | -0.5 | 1.5 | 0.5 | |
| Adjusted EBITDA | 73.8 | 44.5 | | |
| Adjusted EBITDA margin | 27.2% | 24.2% | | |
| Stock-based compensation | 5.7 | 3.3 | | |
| EBITDA [+] | 68.1 | 41.2 | | 24.8 |
| EBITDA growth | 65.4% | 21.7% | 36.3% | |
| EBITDA margin | 25.2% | 22.4% | 25.6% | 44.5% |
| Depreciation | 2.4 | 0.3 | | 0.0 |
| EBITA | 65.7 | 40.9 | 33.8 | 24.8 |
| EBITA margin | 24.3% | 22.2% | 25.6% | 44.4% |
| Amortization of intangibles | 5.3 | 4.2 | | |
| EBIT [+] | 60.4 | 36.6 | 33.8 | 24.8 |
| EBIT growth | 64.8% | 8.3% | 36.6% | |
| EBIT margin | 22.3% | 19.9% | 25.6% | 44.4% |
| Interest expense | 22.9 | 12.4 | 12.9 | |
| Interest expense | 22.9 | 12.4 | 12.9 | |
| Other income (expense), net [+] | 5.2 | | | |
| Gain (loss) on debt retirement | -1.1 | | | |
| Change in value of contingent liability | -0.5 | 1.5 | | |
| Other non-operating income | -6.3 | | | |
| Other | -6.3 | | | |
| Pre-tax income | 42.7 | 24.2 | 20.9 | 24.8 |
| Income taxes | 15.4 | 14.3 | 7.3 | 0.0 |
| Tax rate | 36.0% | 59.2% | 35.0% | 0.0% |
| Net income | 27.3 | 9.9 | 13.6 | 24.8 |
| Net margin | 10.1% | 5.4% | 10.3% | 44.4% |
| |
| Basic EPS [+] | $0.36 | $0.13 | | |
| Growth | 173.5% | | | |
| Diluted EPS [+] | $0.36 | $0.13 | | |
| Growth | 173.2% | | | |
| |
| Dividends per share [+] | | $0.30 | | |
| Growth | -100.0% | | | |
| |
| Shares outstanding (basic) [+] | 75.5 | 74.7 | | |
| Growth | 1.0% | | | |
| Shares outstanding (diluted) [+] | 75.6 | 74.7 | | |
| Growth | 1.1% | | | |
| |
| EBIT is a non-GAAP figure that excludes all non-recurring expenses: restructuring costs, asset impairments, IPR&D writeoffs, and other unusual charges. |