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Condensed Consolidated Statements of Stockholders' Equity - USD ($) $ in Thousands | Total | Common Stock [Member] | Additional Paid-in Capital [Member] | Accumulated Other Comprehensive Income (Loss) [Member] | Accumulated Equity (Deficit) [Member] | American Well Corporation Stockholder Equity (Deficit) [Member] | Noncontrolling Interest [Member]
--- | --- | --- | --- | --- | --- | --- | ---
Beginning balance at Dec. 31, 2022 | $ 1,083,851 | $ 2,766 | $ 2,160,108 | $ (16,969) | $ (1,082,028) | $ 1,063,877 | $ 19,974
Beginning balance (in shares) at Dec. 31, 2022 |  | 277,139,679 |  |  |  |  |
Exercise of common stock options | 289 | $ 1 | 288 |  |  | 289 |
Exercise of common stock options, Shares |  | 128,572 |  |  |  |  |
Vesting of restricted stock units |  | $ 29 | (29) |  |  |  |
Vesting of restricted stock units, Shares |  | 2,927,471 |  |  |  |  |
Shares repurchased and retired | (1) |  |  |  | (1) | (1) |
Shares repurchased and retired,Shares |  | (316) |  |  |  |  |
Issuance of stock under employee stock purchase plan | 1,268 | $ 5 | 1,263 |  |  | 1,268 |
Issuance of stock under employee stock purchase plan,Shares |  | 513,339 |  |  |  |  |
Stock-based compensation expense | 20,997 |  | 20,997 |  |  | 20,997 |
Currency translation adjustment | 2,062 |  |  | 2,062 |  | 2,062 |
Unrealized gains (losses) on available-for-sale securities, net of tax | 4,319 |  |  | 4,319 |  | 4,319 |
Net loss | (398,509) |  |  |  | (397,688) | (397,688) | (821)
Ending balance at Mar. 31, 2023 | 714,276 | $ 2,801 | 2,182,627 | (10,588) | (1,479,717) | 695,123 | 19,153
Ending balance, Shares at Mar. 31, 2023 |  | 280,708,745 |  |  |  |  |
Beginning balance at Dec. 31, 2023 | 480,186 | $ 2,879 | 2,234,768 | (15,650) | (1,757,778) | 464,219 | 15,967
Beginning balance (in shares) at Dec. 31, 2023 |  | 288,488,497 |  |  |  |  |
Vesting of restricted stock units |  | $ 66 | (66) |  |  |  |
Vesting of restricted stock units, Shares |  | 6,542,751 |  |  |  |  |
Issuance of stock under employee stock purchase plan | 956 | $ 11 | 945 |  |  | 956 |
Issuance of stock under employee stock purchase plan,Shares |  | 1,073,497 |  |  |  |  |
Stock-based compensation expense | 16,228 |  | 16,228 |  |  | 16,228 |
Currency translation adjustment | (563) |  |  | (563) |  | (563) |
Net loss | (73,449) |  |  |  | (72,105) | (72,105) | (1,344)
Ending balance at Mar. 31, 2024 | $ 423,358 | $ 2,956 | $ 2,251,875 | $ (16,213) | $ (1,829,883) | $ 408,735 | $ 14,623
Ending balance, Shares at Mar. 31, 2024 |  | 296,104,745 |  |  |  |  |

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