| Dec'19 | Dec'18 | Dec'17 | Dec'16 | Dec'15 | Dec'14 | |
|---|---|---|---|---|---|---|
Revenue | ||||||
464,663 | 339,891 | 385,166 | 478,412 | 239,056 | 146,234 | |
Cost of revenue | ||||||
243,981 | 192,771 | 217,326 | 257,425 | 145,350 | 93,558 | |
Gross profit | ||||||
220,682 | 147,120 | 167,840 | 220,987 | 93,706 | 52,676 | |
Operating expenses: | ||||||
Research and development | ||||||
128,700 | 102,406 | 92,027 | 75,696 | 38,645 | 28,471 | |
Sales, general and administrative | ||||||
80,581 | 51,864 | 38,807 | 27,676 | 13,124 | 6,615 | |
Gain on disposal of property and equipment | ||||||
0 | 0 | 47 | -25 | 0 | -108 | |
Total operating expenses | ||||||
209,281 | 154,270 | 130,787 | 103,397 | 51,769 | 35,194 | |
Income from operations | ||||||
11,401 | -7,150 | 37,053 | 117,590 | 41,937 | 17,482 | |
Other income, net: | ||||||
Interest income, net | ||||||
10,413 | 7,209 | 3,389 | 453 | -135 | -390 | |
Change in fair value of preferred stock warrant liability | ||||||
- | - | - | 3,361 | 2,154 | 483 | |
Other expense, net | ||||||
-173 | -463 | -139 | -61 | 157 | -156 | |
Total other income, net | ||||||
10,240 | 6,746 | 3,250 | -2,969 | -2,132 | -1,029 | |
Income before benefit for income taxes | ||||||
21,641 | -404 | 40,303 | 114,621 | 39,805 | 16,453 | |
Benefit for income taxes | ||||||
-11,200 | -5,320 | 1,795 | -16,956 | -715 | 2,933 | |
Net Income (Loss) Attributable to Parent | ||||||
32,839 | 4,916 | 38,508 | 131,577 | 40,520 | 13,520 | |
Temporary Equity, Accretion to Redemption Value, Adjustment | ||||||
- | - | - | 1,722 | 4,353 | 4,373 | |
Undistributed earnings attributable to participating securities | ||||||
- | - | - | 34,571 | 28,570 | 7,419 | |
Net Income (Loss) Available to Common Stockholders, Basic | ||||||
- | - | - | 95,284 | 7,597 | 1,728 | |
Net income attributable to common stockholders - diluted | ||||||
- | - | - | 95,284 | 7,597 | - | |
Earnings Per Share [Abstract] | ||||||
Basic (in USD per share) | ||||||
0.80 | 0.12 | 0.99 | 3.77 | 1.18 | 0.31 | |
Diluted (in USD per share) | ||||||
0.77 | 0.12 | 0.92 | 3.22 | 0.91 | 0.23 | |
Weighted Average Number of Shares Outstanding, Diluted [Abstract] | ||||||
Weighted Average Number of Shares Outstanding, Basic | ||||||
40,883 | 40,259 | 38,920 | 25,307 | 6,429 | 5,629 | |
Weighted Average Number of Shares Outstanding, Diluted | ||||||
42,554 | 41,997 | 41,690 | 29,585 | 8,311 | 7,447 | |