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Condensed Consolidated Statements of Stockholders' Equity (Unaudited) - USD ($) shares in Thousands, $ in Thousands | Total | Common Stock | Preferred Stock | Additional Paid-in Capital | Accumulated Other Comprehensive (Loss) Income | Accumulated Deficit
--- | --- | --- | --- | --- | --- | ---
Beginning Balances at Dec. 31, 2021 | $ 222,374 | $ 123 | $ 0 | $ 1,441,868 | $ (2,266) | $ (1,217,351)
Beginning Balances (in shares) at Dec. 31, 2021 |  | 122,945 | 0 |  |  |
Issuance of common stock upon exercise of warrants | 24,670 | $ 2 |  | 24,668 |  |
Issuance of common stock upon exercise of warrants (Shares) |  | 1,879 |  |  |  |
Issuance of common stock upon exercise of stock options | 9,487 | $ 1 |  | 9,486 |  |
Issuance of common stock upon exercise of stock options (in shares) |  | 1,171 |  |  |  |
Issuance of common stock upon release of restricted stock awards |  | $ 1 |  | (1) |  |
Issuance of common stock upon release of restricted stock awards (in shares) |  | 1,432 |  |  |  |
Issuance of common stock under Employee Stock Purchase Plan | 1,430 |  |  | 1,430 |  |
Issuance of common stock under Employee Stock Purchase Plan (in shares) |  | 154 |  |  |  |
Stock compensation expense | 24,188 |  |  | 24,188 |  |
Total other comprehensive income (Loss) | (6,996) |  |  |  | (6,996) |
Net Income (Loss) | 225,423 |  |  |  |  | 225,423
Ending Balances at Sep. 30, 2022 | 500,576 | $ 127 | $ 0 | 1,501,639 | (9,262) | (991,928)
Ending Balances (in shares) at Sep. 30, 2022 |  | 127,581 | 0 |  |  |
Beginning Balances at Jun. 30, 2022 | 422,799 | $ 126 | $ 0 | 1,484,970 | (6,560) | (1,055,737)
Beginning Balances (in shares) at Jun. 30, 2022 |  | 126,439 | 0 |  |  |
Issuance of common stock upon exercise of stock options | 7,337 | $ 1 |  | 7,336 |  |
Issuance of common stock upon exercise of stock options (in shares) |  | 884 |  |  |  |
Issuance of common stock upon release of restricted stock awards (in shares) |  | 186 |  |  |  |
Issuance of common stock under Employee Stock Purchase Plan | 720 |  |  | 720 |  |
Issuance of common stock under Employee Stock Purchase Plan (in shares) |  | 72 |  |  |  |
Stock compensation expense | 8,613 |  |  | 8,613 |  |
Total other comprehensive income (Loss) | (2,702) |  |  |  | (2,702) |
Net Income (Loss) | 63,809 |  |  |  |  | 63,809
Ending Balances at Sep. 30, 2022 | 500,576 | $ 127 | $ 0 | 1,501,639 | (9,262) | (991,928)
Ending Balances (in shares) at Sep. 30, 2022 |  | 127,581 | 0 |  |  |
Beginning Balances at Dec. 31, 2022 | 581,013 | $ 128 | $ 0 | 1,510,518 | (5,438) | (924,195)
Beginning Balances (in shares) at Dec. 31, 2022 |  | 127,604 | 0 |  |  |
Issuance of common stock upon exercise of stock options | 4,339 |  |  | 4,339 |  |
Issuance of common stock upon exercise of stock options (in shares) |  | 556 |  |  |  |
Issuance of common stock upon release of restricted stock awards, net of statutory tax withholdings | (6,125) | $ 1 |  | (6,126) |  |
Issuance of common stock upon release of restricted stock awards, net of statutory tax withholdings (in shares) |  | 874 |  |  |  |
Issuance of common stock under Employee Stock Purchase Plan | 1,535 |  |  | 1,535 |  |
Issuance of common stock under Employee Stock Purchase Plan (in shares) |  | 161 |  |  |  |
Stock compensation expense | 31,283 |  |  | 31,283 |  |
Total other comprehensive income (Loss) | (521) |  |  |  | (521) |
Net Income (Loss) | (6,608) |  |  |  |  | (6,608)
Ending Balances at Sep. 30, 2023 | 604,916 | $ 129 | $ 0 | 1,541,549 | (5,959) | (930,803)
Ending Balances (in shares) at Sep. 30, 2023 |  | 129,195 | 0 |  |  |
Beginning Balances at Jun. 30, 2023 | 577,205 | $ 129 | $ 0 | 1,527,544 | (5,372) | (945,096)
Beginning Balances (in shares) at Jun. 30, 2023 |  | 128,779 | 0 |  |  |
Issuance of common stock upon exercise of stock options | 2,722 |  |  | 2,722 |  |
Issuance of common stock upon exercise of stock options (in shares) |  | 312 |  |  |  |
Issuance of common stock upon release of restricted stock awards, net of statutory tax withholdings | $ (162) |  |  | $ (162) |  |
Issuance of common stock upon release of restricted stock awards, net of statutory tax withholdings (in shares) |  | 24 |  |  |  |
Issuance of common stock under Employee Stock Purchase Plan (in shares) | 758 | 80 |  | 758 |  |
Stock compensation expense | $ 10,687 |  |  | $ 10,687 |  |
Total other comprehensive income (Loss) | (587) |  |  |  | (587) |
Net Income (Loss) | 14,293 |  |  |  |  | 14,293
Ending Balances at Sep. 30, 2023 | $ 604,916 | $ 129 | $ 0 | $ 1,541,549 | $ (5,959) | $ (930,803)
Ending Balances (in shares) at Sep. 30, 2023 |  | 129,195 | 0 |  |  |

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