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v3.20.1

Consolidated Statements of Changes in Stockholders' Equity - USD ($) $ in Thousands | Total | Common Stock | Additional Paid-In Capital | Warrants | Other Comprehensive Gain (Loss) | Accumulated Deficit
--- | --- | --- | --- | --- | --- | ---
Balance (in shares) at Dec. 31, 2018 |  | 189,383,924 |  |  |  |
Balance at Dec. 31, 2018 | $ 342,912 | $ 1,942 | $ 1,740,061 | $ 13,063 | $ 68 | $ (1,412,222)
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |
Stock issued from exercise of stock options, net (in shares) |  | 578,451 |  |  |  |
Stock issued from exercise of stock options, net | 3,953 | $ 6 | 3,947 |  |  |
Restricted stock tax vesting (in shares) |  | 301,058 |  |  |  |
Restricted stock tax vesting | (1,940) |  | (1,940) |  |  |
Stock issued for contingent consideration (in shares) |  | 771,804 |  |  |  |
Stock issued for contingent consideration | 9,316 | $ 8 | 9,308 |  |  |
Stock-based compensation | 12,744 |  | 12,744 |  |  |
Warrants exercised (in shares) |  | 101,787 |  |  |  |
Warrants exercised | 812 | $ 1 | 1,487 | (676) |  |
Equity component of the convertible notes (in shares) |  | 39,043,690 |  |  |  |
Equity component of the convertible notes | 190,758 | $ 390 | 190,368 |  |  |
Termination of capped call confirmations | 14,632 |  | 14,632 |  |  |
Unrealized holding gain (loss) on available-for-sale securities | 584 |  |  |  | 584 |
Foreign currency translation adjustment | (1,804) |  |  |  | (1,804) |
Net loss | (120,299) |  |  |  |  | (120,299)
Balance (in shares) at Mar. 31, 2019 |  | 230,180,714 |  |  |  |
Balance at Mar. 31, 2019 | $ 451,668 | $ 2,347 | 1,970,607 | 12,387 | (1,152) | (1,532,521)
Balance (in shares) at Dec. 31, 2019 | 255,417,869 | 255,417,869 |  |  |  |
Balance at Dec. 31, 2019 | $ 476,425 | $ 2,598 | 2,227,225 | 12,387 | 2,825 | (1,768,610)
Increase (Decrease) in Stockholders' Equity |  |  |  |  |  |
Stock issued from exercise of stock options, net (in shares) |  | 958,947 |  |  |  |
Stock issued from exercise of stock options, net | 6,077 | $ 9 | 6,068 |  |  |
Restricted stock tax vesting (in shares) |  | 1,073,139 |  |  |  |
Restricted stock tax vesting | (7,543) |  | (7,543) |  |  |
Stock-based compensation | 12,596 |  | 12,596 |  |  |
Unrealized holding gain (loss) on available-for-sale securities | (209) |  |  |  | (209) |
Foreign currency translation adjustment | 4,196 |  |  |  | 4,196 |
Net loss | $ (88,948) |  |  |  |  | (88,948)
Balance (in shares) at Mar. 31, 2020 | 257,449,955 | 257,449,955 |  |  |  |
Balance at Mar. 31, 2020 | $ 402,594 | $ 2,607 | $ 2,238,346 | $ 12,387 | $ 6,812 | $ (1,857,558)

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