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CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS' EQUITY/(DEFICIT) - USD ($) $ in Thousands | Ordinary shares Cumulative effect, period of adoption, adjusted balance | Ordinary shares | Additional paid-in capital Cumulative effect, period of adoption, adjusted balance | Additional paid-in capital | Treasury Stock Cumulative effect, period of adoption, adjusted balance | Treasury Stock | Accumulated other comprehensive (loss) income Cumulative effect, period of adoption, adjusted balance | Accumulated other comprehensive (loss) income | Accumulated deficit Cumulative effect of accounting change | Accumulated deficit Cumulative effect, period of adoption, adjusted balance | Accumulated deficit | Cumulative effect of accounting change | Cumulative effect, period of adoption, adjusted balance | Total
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Beginning Balance at Dec. 31, 2020 |  | $ 11 |  | $ 27,315 |  |  |  | $ 481 |  |  | $ (192,474) |  |  | $ (164,667)
Beginning Balance (in shares) at Dec. 31, 2020 |  | 221,980,000 |  |  |  |  |  |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Issuance of ordinary shares upon Initial Public Offering and related over-allotment option, net of cost of issuance |  | $ 2 |  | 904,730 |  |  |  |  |  |  |  |  |  | 904,732
Issuance of ordinary shares upon Initial Public Offering and related over-allotment option, net of cost of issuance (in shares) |  | 45,076,479 |  |  |  |  |  |  |  |  |  |  |  |
Issuance of ordinary shares prior to Initial Public Offering |  | $ 1 |  | 199,999 |  |  |  |  |  |  |  |  |  | 200,000
Issuance of ordinary shares prior to Initial Public Offering (in shares) |  | 16,026,282 |  |  |  |  |  |  |  |  |  |  |  |
Conversion of redeemable preferred shares |  | $ 14 |  | 333,653 |  |  |  |  |  |  |  |  |  | 333,667
Conversion of redeemable preferred shares (in shares) |  | 278,163,799 |  |  |  |  |  |  |  |  |  |  |  |
Issuance of ordinary shares reserved for equity incentive plan |  | $ 1 |  |  |  | $ (1) |  |  |  |  |  |  |  |
Issuance of ordinary shares reserved for equity incentive plan (in shares) |  | 10,000,000 |  |  |  | (10,000,000) |  |  |  |  |  |  |  |
Repurchase of ordinary shares |  |  |  |  |  | $ (53,645) |  |  |  |  |  |  |  | (53,645)
Repurchase of ordinary shares (in share) |  |  |  |  |  | (7,008,269) |  |  |  |  |  |  |  |
Exercise of share option and vested restricted share unit |  |  |  | (5,646) |  | $ 6,716 |  |  |  |  |  |  |  | 1,070
Exercise of share option and vested restricted share unit (in shares) |  |  |  |  |  | 5,403,461 |  |  |  |  |  |  |  |
Net loss |  |  |  |  |  |  |  |  |  |  | (175,424) |  |  | (175,424)
Fair value change of long-term investment |  |  |  |  |  |  |  | 357 |  |  |  |  |  | 357
Foreign currency translation adjustment |  |  |  |  |  |  |  | 1,482 |  |  |  |  |  | 1,482
Share-based compensation |  |  |  | 66,089 |  |  |  |  |  |  |  |  |  | 66,089
Ending Balance at Dec. 31, 2021 |  | $ 29 |  | 1,526,140 |  | $ (46,930) |  | 2,320 |  |  | (367,898) |  |  | 1,113,661
Ending Balance (in shares) at Dec. 31, 2021 |  | 571,246,560 |  |  |  |  |  |  |  |  |  |  |  |
Ending Balance (in shares) at Dec. 31, 2021 |  |  |  |  |  | (11,604,808) |  |  |  |  |  |  |  |
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repurchase of ordinary shares |  |  |  |  |  | $ (59,631) |  |  |  |  |  |  |  | (59,631)
Repurchase of ordinary shares (in share) |  |  |  |  |  | (18,839,849) |  |  |  |  |  |  |  |
Exercise of share option and vested restricted share unit |  |  |  | (19,084) |  | $ 20,123 |  |  |  |  |  |  |  | 1,039
Exercise of share option and vested restricted share unit (in shares) |  |  |  |  |  | 4,848,326 |  |  |  |  |  |  |  |
Issuance of ordinary shares upon the Dual Primary Listing, net of cost of issuance |  |  |  | 8,689 |  |  |  |  |  |  |  |  |  | 8,689
Issuance of ordinary shares upon the Dual Primary Listing, net of cost of issuance (in shares) |  | 7,300,000 |  |  |  |  |  |  |  |  |  |  |  |
Net loss |  |  |  |  |  |  |  |  |  |  | (146,175) |  |  | (146,175)
Fair value change of long-term investment |  |  |  |  |  |  |  | (9,493) |  |  |  |  |  | (9,493)
Foreign currency translation adjustment |  |  |  |  |  |  |  | (14,942) |  |  |  |  |  | (14,942)
Share-based compensation |  |  |  | 69,019 |  |  |  |  |  |  |  |  |  | 69,019
Ending Balance at Dec. 31, 2022 | $ 29 | $ 29 | $ 1,584,764 | 1,584,764 | $ (86,438) | $ (86,438) | $ (22,115) | (22,115) | $ (460) | $ (514,533) | (514,073) | $ (460) | $ 961,707 | $ 962,167
Ending Balance (in shares) at Dec. 31, 2022 | 578,546,560 | 578,546,560 |  |  |  |  |  |  |  |  |  |  |  |
Ending Balance (in shares) at Dec. 31, 2022 |  |  |  |  | (25,596,331) | (25,596,331) |  |  |  |  |  |  |  | 25,596,331
Increase (Decrease) in Stockholders' Equity [Roll Forward] |  |  |  |  |  |  |  |  |  |  |  |  |  |
Repurchase of ordinary shares |  |  |  |  |  | $ (2,254) |  |  |  |  |  |  |  | $ (2,254)
Repurchase of ordinary shares (in share) |  |  |  |  |  | (1,200,794) |  |  |  |  |  |  |  |
Exercise of share option and vested restricted share unit |  |  |  | (27,361) |  | $ 28,548 |  |  |  |  |  |  |  | 1,187
Exercise of share option and vested restricted share unit (in shares) |  |  |  |  |  | 6,047,833 |  |  |  |  |  |  |  |
Cancellation of Treasury stock |  |  |  | (6,514) |  | $ 6,514 |  |  |  |  |  |  |  |
Cancellation of Treasury stock (in shares) |  | (3,953,961) |  |  |  | 3,953,961 |  |  |  |  |  |  |  |
Net loss |  |  |  |  |  |  |  |  |  |  | (60,315) |  |  | (60,315)
Fair value change of long-term investment |  |  |  |  |  |  |  | (7,791) |  |  |  |  |  | (7,791)
Transfer out of fair value changes of long-term investments |  |  |  |  |  |  |  | 15,537 |  |  |  |  |  | 15,537
Foreign currency translation adjustment |  |  |  |  |  |  |  | (2,722) |  |  |  |  |  | (2,722)
Share-based compensation |  |  |  | 65,216 |  |  |  |  |  |  |  |  |  | 65,216
Ending Balance at Dec. 31, 2023 |  | $ 29 |  | $ 1,616,105 |  | $ (53,630) |  | $ (17,091) |  |  | $ (574,848) |  |  | $ 970,565
Ending Balance (in shares) at Dec. 31, 2023 |  | 574,592,599 |  |  |  |  |  |  |  |  |  |  |  |
Ending Balance (in shares) at Dec. 31, 2023 |  |  |  |  |  | (16,795,331) |  |  |  |  |  |  |  | 16,795,331

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