| Dec'19 | Dec'18 | Dec'17 | Dec'16 | Dec'15 | Dec'14 | Dec'13 | Dec'12 | Dec'11 | Dec'10 | Dec'09 |
|---|---|---|---|---|---|---|---|---|---|---|
Cash flows from operating activities | ||||||||||
Net loss | ||||||||||
-235,259 | -245,192 | -289,403 | -271,393 | -164,443 | -92,475 | -37,948 | -20,849 | -22,765 | 15,139 | -45,145 |
Adjustments to reconcile net loss to net cash used in operating activities: | ||||||||||
Stock-based compensation | ||||||||||
82,265 | 81,564 | 75,532 | 55,265 | 40,194 | 16,039 | 5,711 | 1,930 | 1,598 | 1,583 | 2,134 |
Amortization of premiums and accretion of discounts on investment securities | ||||||||||
3,613 | 578 | 291 | -89 | 2,060 | -484 | -1,528 | 133 | -105 | 117 | - |
Amortization of intangible assets | ||||||||||
1,500 | 1,500 | 1,500 | 985 | 0 | - | - | - | - | - | - |
Loss on strategic investment | ||||||||||
997 | -1,840 | - | - | - | - | - | - | - | - | - |
Depreciation | ||||||||||
1,300 | 1,500 | 1,200 | 843 | 647 | 206 | 79 | - | - | 607 | 1,111 |
Income tax benefit from exercise of stock options | ||||||||||
- | - | - | 596 | 247 | - | - | - | - | - | - |
Loss on disposal of assets | ||||||||||
-3 | -88 | -4 | -5 | - | - | 10 | 252 | - | - | - |
Depreciation and amortization | ||||||||||
- | - | - | - | - | - | - | 109 | 285 | - | - |
Other | ||||||||||
- | - | - | - | - | - | - | - | - | - | -323 |
Amortization of investment premium/discount | ||||||||||
- | - | - | - | - | - | - | - | - | - | -260 |
Non-cash charge resulting from lease termination | ||||||||||
- | - | - | - | - | - | - | - | 806 | - | - |
Gain on sales of property and equipment | ||||||||||
- | - | - | - | - | - | - | - | - | 94 | - |
Changes in operating assets and liabilities: | ||||||||||
Accounts receivable, net | ||||||||||
9,691 | 8,747 | 11,440 | 5,903 | - | - | - | - | - | - | - |
Interest and other receivables | ||||||||||
394 | 612 | -150 | -401 | 674 | 214 | 505 | -279 | - | - | - |
Inventory | ||||||||||
1,737 | -1,926 | 1,012 | 3,305 | - | - | - | - | - | - | - |
Prepaid expenses | ||||||||||
-2,121 | 12,270 | 911 | 4,731 | 804 | -652 | 1,484 | -41 | 131 | -671 | -1,013 |
Operating lease right-of-use assets | ||||||||||
-3,875 | - | - | - | - | - | - | - | - | - | - |
Restricted cash | ||||||||||
- | - | - | - | 375 | - | - | - | - | - | - |
Other assets | ||||||||||
-39 | 236 | -431 | 456 | 42 | 108 | 179 | -14 | -106 | -26 | -47 |
Accounts payable | ||||||||||
4,055 | -5,619 | 4,874 | 2,240 | -344 | 1,644 | -1,003 | -585 | -29 | -990 | 656 |
Accrued liabilities | ||||||||||
6,458 | 15,994 | 4,206 | 15,579 | 6,256 | 7,266 | 2,413 | 635 | 277 | -2,135 | -2,282 |
Deferred revenue | ||||||||||
- | - | -2,644 | 2,644 | - | -55 | -379 | -2,822 | -57 | -25,303 | 28,178 |
Operating lease liabilities | ||||||||||
-2,518 | - | - | - | - | - | - | - | - | - | - |
Long-term liabilities | ||||||||||
1,497 | 1,367 | 34 | -75 | 97 | 127 | 8 | - | -92 | -90 | -22 |
Net cash used in operating activities | ||||||||||
-151,130 | -167,470 | -217,757 | -208,408 | -121,795 | -66,434 | -31,769 | -21,633 | -19,897 | -10,703 | -13,727 |
Cash flows from investing activities | ||||||||||
Purchases of investment securities | ||||||||||
578,634 | 327,914 | 478,818 | 683,355 | 269,486 | 335,361 | 211,585 | 56,728 | 48,066 | 54,674 | 50,265 |
Maturities of investment securities | ||||||||||
413,927 | 261,678 | 572,103 | 430,937 | 419,197 | 248,268 | 86,087 | 30,948 | 54,049 | 53,486 | 59,750 |
Purchases of strategic investments | ||||||||||
- | 3,149 | - | - | - | - | - | - | - | - | - |
Intangible assets | ||||||||||
- | - | - | 8,000 | - | - | - | - | - | - | - |
Proceeds from sale of property and equipment | ||||||||||
- | 44 | - | - | - | - | 12 | 252 | - | -128 | -41 |
Purchases of property and equipment | ||||||||||
1,129 | 2,148 | 812 | 1,506 | 2,141 | 180 | 618 | - | 3 | - | - |
Net cash provided by investing activities | ||||||||||
-165,836 | -71,489 | 92,473 | -261,924 | 147,570 | -87,273 | -126,104 | -25,528 | 5,980 | -1,060 | 9,444 |
Cash flows from financing activities | ||||||||||
Proceeds from issuance of common stock, net of issuance costs | ||||||||||
371,847 | 306,647 | 31,188 | 518,896 | 14,547 | 203,851 | 111,682 | 98,204 | 14,022 | 823 | 1,923 |
Proceeds from settlement agreement | ||||||||||
- | - | - | 14,320 | - | - | - | - | - | - | - |
Deferred offering costs | ||||||||||
- | - | - | - | 292 | - | - | - | - | - | - |
Income tax benefit from exercise of stock options | ||||||||||
- | - | - | 596 | 247 | - | - | - | - | - | - |
Repayments of long-term debt | ||||||||||
- | - | - | - | - | - | - | 32 | 78 | 353 | 762 |
Net cash provided by financing activities | ||||||||||
371,847 | 306,647 | 31,188 | 533,812 | 14,502 | 203,851 | 111,682 | 98,172 | 13,944 | 470 | 1,161 |
Effect of exchange rate changes on cash | ||||||||||
2 | 3 | -6 | 2 | 7 | 3 | -1 | -1 | 13 | 20 | 73 |
Net decrease in cash, cash equivalents and restricted cash | ||||||||||
54,883 | 67,691 | -94,102 | 63,482 | 40,284 | 50,147 | -46,192 | 51,010 | 40 | -11,273 | -3,049 |
Supplemental disclosure of cash flow information: | ||||||||||
Cash paid for income taxes | ||||||||||
1,597 | 1,261 | 1,367 | -365 | 415 | - | - | - | - | - | - |
Supplemental disclosure of noncash information: | ||||||||||
Property and equipment purchases in accounts payable and accrued liabilities | ||||||||||
34 | 160 | 9 | 220 | 156 | - | - | - | - | - | - |
Stock-based compensation capitalized in inventory | ||||||||||
- | - | - | 870 | - | - | - | - | - | - | - |
Unrealized gain (loss) on investment securities | ||||||||||
- | - | - | - | - | - | - | - | 9 | - | - |
Interest paid | ||||||||||
- | - | - | - | - | - | - | - | - | - | 96 |