| Dec'18 | Dec'17 | Dec'16 | Dec'15 | Dec'14 | Dec'13 | Dec'12 |
|---|---|---|---|---|---|---|
Cash flows from operating activities: | ||||||
Net loss | ||||||
-124,507 | -226,835 | 7,590 | - | - | - | - |
Net loss | ||||||
- | - | - | 58,053 | 36,054 | 40,377 | -24,378 |
Adjustments to reconcile net loss to net cash used in operating activities: | ||||||
Inventory obsolescence reserve | ||||||
3,095 | 6,186 | 7,397 | -336 | - | - | - |
Depreciation and amortization | ||||||
7,579 | 7,337 | 6,249 | 5,291 | 2,500 | 1,788 | 1,662 |
Stock-based compensation | ||||||
12,016 | 16,015 | 21,589 | 21,882 | 15,289 | 6,339 | 2,761 |
Deferred income tax benefit | ||||||
- | -23,243 | 5,636 | 4,914 | 655 | 12,038 | - |
Impairment of intangible assets | ||||||
- | - | - | - | - | - | 5,300 |
Impairment of goodwill | ||||||
- | - | - | - | - | - | 103 |
Loss on disposal of property and equipment | ||||||
-440 | 0 | - | -41 | - | 0 | -46 |
Impairment on property and equipment | ||||||
1,487 | - | - | - | - | - | - |
Excess tax deficiency on stock options and awards | ||||||
- | - | -1,729 | 13,596 | - | - | - |
Write-off of notes receivable and other assets due from stockholders | ||||||
26 | - | - | - | - | - | - |
Excess tax benefits on stock options and awards | ||||||
- | - | - | - | 21,449 | 2,745 | - |
Amortization of investment discount | ||||||
26 | 1,125 | 2,029 | 1,431 | 367 | - | - |
Interest expense accrued on notes payable | ||||||
- | - | - | - | - | 900 | 2,582 |
Changes in operating assets and liabilities: | ||||||
Accretion (re-valuation) of contingent payment obligation | ||||||
- | - | - | - | - | - | -2,114 |
Accounts receivable, net | ||||||
-8,903 | 859 | -26,618 | 23,770 | 7,796 | 13,224 | 3,089 |
Inventories | ||||||
-2,260 | -2,251 | -7,647 | 3,280 | 23,571 | 7,433 | 360 |
Prepaid expenses and other current assets | ||||||
-9,464 | 14,518 | 1,721 | -1,345 | 2,967 | 365 | 73 |
Accounts payable, accrued expenses and other current and noncurrent liabilities | ||||||
15,802 | -118 | -12,409 | 50,708 | 52,813 | 14,417 | 166 |
Accrued sales allowances | ||||||
8,448 | 12,665 | 6,078 | - | - | - | - |
Deferred revenue | ||||||
- | 1,109 | - | - | - | - | - |
Deferred revenue | ||||||
- | - | - | - | - | -3,767 | 3,767 |
Accrued litigation award and settlements | ||||||
-15,868 | -137,067 | -3,900 | -9,423 | - | 0 | - |
Net cash used in operating activities | ||||||
- | - | - | 102,278 | 50,585 | - | - |
Net cash used in operating activities | ||||||
-55,989 | -60,662 | 58,904 | - | - | 24,249 | -13,627 |
Cash flows from investing activities: | ||||||
Change in restricted cash | ||||||
- | - | - | - | -400 | 400 | - |
Purchases of investments | ||||||
61,726 | 132,068 | 115,375 | 138,470 | 56,605 | 0 | - |
Proceeds from sales of investments | ||||||
16,747 | 32,471 | 7,948 | - | - | - | - |
Proceeds from sales of investments | ||||||
- | - | - | 25,492 | - | - | - |
Proceeds from maturities of investments | ||||||
104,472 | 98,448 | 96,009 | 36,643 | 8,195 | - | - |
Purchases of property and equipment | ||||||
6,095 | 16,661 | 10,614 | 13,842 | 22,245 | 5,125 | 1,020 |
Net cash provided by (used in) investing activities | ||||||
- | - | - | -90,177 | -70,255 | - | - |
Net cash provided by investing activities | ||||||
53,398 | -17,810 | -22,032 | - | - | -5,525 | -1,020 |
Cash flows from financing activities: | ||||||
Proceeds from issuance of common stock | ||||||
1,048 | 1,326 | 2,280 | 2,647 | 1,989 | 852 | - |
Excess tax deficiency on stock options and awards | ||||||
- | - | -1,729 | 13,596 | - | - | - |
Net repayments on line of credit | ||||||
- | - | - | - | - | - | 11,858 |
Proceeds from notes payable to related party | ||||||
- | - | - | - | - | - | 2,987 |
Excess tax benefits on stock options and awards | ||||||
- | - | - | - | 21,449 | 2,745 | - |
Shares withheld for future payment of employees' withholding tax liability | ||||||
- | 42 | - | - | - | - | - |
Proceeds from exercise of stock options | ||||||
1,096 | 4,545 | 3,803 | 9,524 | 8,956 | 2,102 | 152 |
Repurchase of common stock | ||||||
- | - | 16,099 | 16,459 | - | 0 | - |
Net cash provided by financing activities | ||||||
- | - | - | 9,308 | 32,394 | - | - |
Net repayments on line of credit | ||||||
- | - | - | - | - | 11,858 | - |
Proceeds from issuance of common stock - initial public offering | ||||||
- | - | - | - | - | 32,456 | - |
Net cash provided by financing activities | ||||||
2,144 | 5,829 | -11,745 | - | - | 26,297 | 14,997 |
Change in cash and cash equivalents | ||||||
-447 | -72,643 | 25,127 | - | - | - | - |
Change in cash and cash equivalents | ||||||
- | - | - | 21,409 | 12,724 | 45,021 | 350 |
Supplemental cash flow disclosures: | ||||||
Cash paid (refunded) for income taxes, net | ||||||
-13,392 | 2,110 | 10,742 | - | - | - | - |
Cash paid for interest expense | ||||||
- | - | - | - | - | 0 | 98 |
Cash paid for income taxes | ||||||
- | - | - | 15,351 | 2,975 | 991 | - |
Non-cash capital expenditures | ||||||
323 | 2,678 | 425 | - | - | - | - |