| Dec 31,
2015 | Dec 31,
2016 | Dec 31,
2017 | Dec 31,
2018 | Dec 31,
2019 | Dec 31,
2020 | Dec 31,
2021 | Dec 31,
2022 | Dec 31,
2023 | Dec 31,
2024 |
|---|
| Net income (loss) | - | - | 5 | 3 | 47 | -19 | 3 | -2 | 91 | 14 |
|---|
| Depreciation and amortization | 2 | 2 | 4 | 6 | 8 | 13 | 16 | 24 | 27 | 24 |
|---|
| Stock-based compensation | 7 | 15 | 18 | 18 | 21 | 26 | 66 | 37 | 51 | 46 |
|---|
| Impairment charge | - | - | - | - | - | - | - | - | - | 77 |
|---|
| Inventory Write-down | 1 | 3 | 1 | 2 | 4 | 11 | 3 | 3 | 6 | 44 |
|---|
| Deferred taxes | -3 | -12 | -4 | -6 | 2 | -19 | -14 | 1 | -19 | -16 |
|---|
| Acquired in-process research and development | - | - | - | - | - | - | - | - | 18 | - |
|---|
| Other | - | - | 1 | 0 | 0 | 5 | 3 | 1 | 2 | 4 |
|---|
| Accounts receivable | 11 | 15 | 9 | 26 | 25 | 8 | 21 | 70 | 0 | -27 |
|---|
| Inventories | 25 | 20 | 19 | 22 | 41 | 57 | 52 | 75 | 68 | 66 |
|---|
| Prepaid expenses and other current and non-current assets | 4 | 9 | -2 | -2 | 4 | 9 | 13 | 1 | 19 | 3 |
|---|
| Accounts payable | 0 | 1 | 2 | 1 | 6 | -0 | -2 | 13 | 1 | 4 |
|---|
| Accrued expenses and other non-current liabilities | 8 | 6 | 10 | 14 | 8 | 23 | 17 | 11 | 6 | 14 |
|---|
| Proceeds from lease incentives | - | - | - | - | - | - | 4 | 0 | 0 | - |
|---|
| Net cash provided by (used in) operating activities | -22 | -13 | 13 | 29 | 27 | -33 | 10 | -56 | 97 | 168 |
|---|
| Asset acquisition, net of cash acquired | - | - | - | - | - | - | - | - | 1 | - |
|---|
| Purchases of non-marketable investments | - | - | 5 | 1 | - | - | - | - | - | 10 |
|---|
| Purchases of marketable investments | - | - | - | - | - | - | 127 | - | 82 | 23 |
|---|
| Proceeds from sales of marketable investments | - | - | - | - | - | - | 2 | 1 | - | - |
|---|
| Proceeds from maturities of marketable investments | - | 65 | 113 | 127 | 91 | 69 | 122 | 73 | 83 | 131 |
|---|
| Purchases of property and equipment | 5 | 14 | 13 | 10 | 22 | 25 | 21 | 19 | 15 | 21 |
|---|
| Other | - | - | - | - | 2 | 3 | 0 | - | 1 | -1 |
|---|
| Net cash provided by (used in) investing activities | -86 | 1 | -78 | -0 | -13 | -104 | -22 | 55 | -16 | 78 |
|---|
| Proceeds from Stock Options Exercised | 1 | 3 | 5 | 5 | 4 | 5 | 5 | 8 | 6 | 2 |
|---|
| Proceeds from Stock Plans | - | 7 | 6 | 7 | 9 | 11 | 14 | 14 | 15 | 15 |
|---|
| Payment of employee taxes related to vested common and restricted stock | 3 | 3 | 12 | 18 | 19 | 10 | 16 | 8 | 2 | 1 |
|---|
| Payments of finance lease obligations | - | - | - | - | 3 | 3 | 1 | 2 | 2 | 2 |
|---|
| Repurchase of common stock | - | - | - | - | - | - | - | - | - | 100 |
|---|
| Other | - | - | - | - | - | -2 | -0 | -0 | -0 | -0 |
|---|
| Net cash (used in) provided by financing activities | 124 | 7 | 104 | -10 | -9 | 135 | 1 | 12 | 16 | -87 |
|---|
| Effect of foreign exchange rate changes on cash and cash equivalents | - | - | - | - | -0 | -1 | 1 | -0 | 0 | -2 |
|---|
| NET INCREASE IN CASH AND CASH EQUIVALENTS | - | - | - | - | 5 | -3 | -10 | 10 | 98 | 157 |
|---|
| Income Taxes Paid | 1 | 2 | 0 | 0 | 0 | 1 | 1 | 3 | 7 | 21 |
|---|
| Right-of-Use Asset Obtained in Exchange for Operating Lease Liability | - | - | - | - | - | - | 102 | 72 | 9 | 2 |
|---|
| Right-of-Use Asset Obtained in Exchange for Finance Lease Liability | - | - | - | - | - | - | 1 | 0 | 1 | 0 |
|---|
| Shares | - | - | - | - | - | - | 174 | - | 17 | - |
|---|
| Stock Options | - | - | - | - | - | - | 81 | - | - | - |
|---|
| Capital Expenditures Incurred but Not yet Paid | 0 | 1 | 1 | 1 | 3 | 1 | 2 | 2 | 1 | 2 |
|---|
| Share Repurchase Program, Excise Tax | - | - | - | - | - | - | - | - | - | 0 |
|---|