CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Thousands	Dec. 31, 2023	Dec. 31, 2022
Temporary equity, shares authorized		67,018,087
Temporary equity, shares issued		67,018,087
Temporary equity, liquidation preference		$ 198,016
Undesignated shares, par value	$ 0.0001	$ 0.0001
Undesignated shares, shares authorized	90,187,562	0
Ordinary shares, par value (in dollars per share)	$ 0.0001	$ 0.0001
Ordinary shares, shares authorized	500,000,000	432,982,000
Ordinary shares, shares issued	139,220,000	10,527,000
Ordinary shares, shares outstanding	139,220,000	10,527,000
Series A redeemable convertible preferred shares
Temporary equity, par value	$ 0.0001	$ 0.0001
Temporary equity, shares authorized	0	19,200,000
Temporary equity, shares issued	0	19,200,000
Temporary equity, shares outstanding	0	19,200,000
Temporary equity, liquidation preference	$ 0	$ 32,001
Series A+ redeemable convertible preferred shares
Temporary equity, par value	$ 0.0001	$ 0.0001
Temporary equity, shares authorized	0	12,799,681
Temporary equity, shares issued	0	12,799,681
Temporary equity, shares outstanding	0	12,799,681
Temporary equity, liquidation preference	$ 0	$ 26,000
Series B redeemable convertible preferred stock
Temporary equity, par value	$ 0.0001	$ 0.0001
Temporary equity, shares authorized	0	32,857,004
Temporary equity, shares issued	0	32,857,004
Temporary equity, shares outstanding	0	32,857,004
Temporary equity, liquidation preference	$ 0	$ 133,015
Series B1 redeemable convertible preferred stock
Temporary equity, par value	$ 0.0001	$ 0.0001
Temporary equity, shares authorized	0	2,161,402
Temporary equity, shares issued	0	2,161,402
Temporary equity, shares outstanding	0	2,161,402
Temporary equity, liquidation preference	$ 0	$ 7,000
Ordinary shares
Ordinary shares, shares authorized	500,000,000