Condensed Consolidated Statements of Stockholders’ Equity - USD ($) $ in Thousands | Total | Common Stock | Preferred Stock | Additional Paid-In Capital | Accumulated Deficit | Accumulated Other Comprehensive Gain (Loss) | Treasury Stock |
Common stock beginning balance (in shares) at Dec. 31, 2022 | | 189,214,000 | | | | | |
Beginning balance at Dec. 31, 2022 | $ 117,124 | $ 189 | $ 0 | $ 1,709,144 | $ (1,589,720) | $ (428) | $ (2,061) |
Preferred stock beginning balance (in shares) at Dec. 31, 2022 | | | 0 | | | | |
Stock-based compensation | 3,415 | | | 3,415 | | | |
Issuance of common stock under Equity Incentive Plans (in shares) | | 1,216,000 | | | | | |
Proceeds from issuance of common stock for equity incentive plans | 0 | $ 1 | | (1) | | | |
Repurchase of common stock | (824) | | | | | | (824) |
Net loss | (31,934) | | | | (31,934) | | |
Unrealized gain (loss) on investments | 265 | | | | | 265 | |
Common stock ending balance (in shares) at Mar. 31, 2023 | | 190,430,000 | | | | | |
Ending balance at Mar. 31, 2023 | 88,046 | $ 190 | $ 0 | 1,712,558 | (1,621,654) | (163) | (2,885) |
Preferred stock ending balance (in shares) at Mar. 31, 2023 | | | 0 | | | | |
Common stock beginning balance (in shares) at Dec. 31, 2022 | | 189,214,000 | | | | | |
Beginning balance at Dec. 31, 2022 | 117,124 | $ 189 | $ 0 | 1,709,144 | (1,589,720) | (428) | (2,061) |
Preferred stock beginning balance (in shares) at Dec. 31, 2022 | | | 0 | | | | |
Issuance of equity-classified warrants | 307 | | | | | | |
Net loss | (76,838) | | | | | | |
Unrealized gain (loss) on investments | 328 | | | | | | |
Common stock ending balance (in shares) at Jun. 30, 2023 | | 245,793,000 | | | | | |
Ending balance at Jun. 30, 2023 | 186,361 | $ 245 | $ 0 | 1,855,659 | (1,666,558) | (100) | (2,885) |
Preferred stock ending balance (in shares) at Jun. 30, 2023 | | | 0 | | | | |
Common stock beginning balance (in shares) at Mar. 31, 2023 | | 190,430,000 | | | | | |
Beginning balance at Mar. 31, 2023 | 88,046 | $ 190 | $ 0 | 1,712,558 | (1,621,654) | (163) | (2,885) |
Preferred stock beginning balance (in shares) at Mar. 31, 2023 | | | 0 | | | | |
Stock-based compensation | 3,815 | | | 3,815 | | | |
Issuance of equity-classified warrants | 307 | | | 307 | | | |
Stock Issued During Period, Shares, New Issues | | 55,288,000 | | | | | |
Stock Issued During Period, Value, New Issues | $ 139,034 | $ 55 | | 138,979 | | | |
Issuance of common stock under Equity Incentive Plans (in shares) | 75,000 | | | | | | |
Proceeds from issuance of common stock for equity incentive plans | $ 0 | | | | | | |
Net loss | (44,904) | | | | (44,904) | | |
Unrealized gain (loss) on investments | 63 | | | | | 63 | |
Common stock ending balance (in shares) at Jun. 30, 2023 | | 245,793,000 | | | | | |
Ending balance at Jun. 30, 2023 | $ 186,361 | $ 245 | $ 0 | 1,855,659 | (1,666,558) | (100) | (2,885) |
Preferred stock ending balance (in shares) at Jun. 30, 2023 | | | 0 | | | | |
Common stock beginning balance (in shares) at Dec. 31, 2023 | 245,792,668 | 245,793,000 | | | | | |
Beginning balance at Dec. 31, 2023 | $ 93,110 | $ 245 | $ 0 | 1,862,558 | (1,766,839) | 31 | (2,885) |
Preferred stock beginning balance (in shares) at Dec. 31, 2023 | 0 | | 0 | | | | |
Stock-based compensation | $ 4,302 | | | 4,302 | | | |
Stock Issued During Period, Shares, New Issues | | | 2,304,000 | | | | |
Stock Issued During Period, Value, New Issues | 241,575 | | $ 23 | 241,552 | | | |
Issuance of common stock under Equity Incentive Plans (in shares) | | 1,972,000 | | | | | |
Proceeds from issuance of common stock for equity incentive plans | 88 | $ 3 | | 85 | | | |
Repurchase of common stock | (1,730) | | | | | | (1,730) |
Net loss | (48,397) | | | | (48,397) | | |
Unrealized gain (loss) on investments | (81) | | | | | (81) | |
Common stock ending balance (in shares) at Mar. 31, 2024 | | 247,765,000 | | | | | |
Ending balance at Mar. 31, 2024 | $ 288,867 | $ 248 | $ 23 | 2,108,497 | (1,815,236) | (50) | (4,615) |
Preferred stock ending balance (in shares) at Mar. 31, 2024 | | | 2,304,000 | | | | |
Common stock beginning balance (in shares) at Dec. 31, 2023 | 245,792,668 | 245,793,000 | | | | | |
Beginning balance at Dec. 31, 2023 | $ 93,110 | $ 245 | $ 0 | 1,862,558 | (1,766,839) | 31 | (2,885) |
Preferred stock beginning balance (in shares) at Dec. 31, 2023 | 0 | | 0 | | | | |
Issuance of equity-classified warrants | $ 0 | | | | | | |
Net loss | (101,826) | | | | | | |
Unrealized gain (loss) on investments | $ (224) | | | | | | |
Common stock ending balance (in shares) at Jun. 30, 2024 | 363,020,303 | 363,020,000 | | | | | |
Ending balance at Jun. 30, 2024 | $ 239,980 | $ 363 | $ 0 | 2,113,090 | (1,868,665) | (193) | (4,615) |
Preferred stock ending balance (in shares) at Jun. 30, 2024 | 2,304,147 | | 0 | | | | |
Common stock beginning balance (in shares) at Mar. 31, 2024 | | 247,765,000 | | | | | |
Beginning balance at Mar. 31, 2024 | $ 288,867 | $ 248 | $ 23 | 2,108,497 | (1,815,236) | (50) | (4,615) |
Preferred stock beginning balance (in shares) at Mar. 31, 2024 | | | 2,304,000 | | | | |
Stock-based compensation | 4,859 | | | 4,859 | | | |
Stock Issued During Period, Value, New Issues | (175) | | | (175) | | | |
Conversion of preferred stock to common stock (in shares) | | 115,207,000 | (2,304,000) | | | | |
Conversion of preferred stock to common stock | 0 | $ 115 | $ (23) | (92) | | | |
Issuance of common stock under Equity Incentive Plans (in shares) | | 48,000 | | | | | |
Proceeds from issuance of common stock for equity incentive plans | 1 | | | 1 | | | |
Net loss | (53,429) | | | | (53,429) | | |
Unrealized gain (loss) on investments | $ (143) | | | | | (143) | |
Common stock ending balance (in shares) at Jun. 30, 2024 | 363,020,303 | 363,020,000 | | | | | |
Ending balance at Jun. 30, 2024 | $ 239,980 | $ 363 | $ 0 | $ 2,113,090 | $ (1,868,665) | $ (193) | $ (4,615) |
Preferred stock ending balance (in shares) at Jun. 30, 2024 | 2,304,147 | | 0 | | | | |