CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS AND COMPREHENSIVE LOSS - USD ($) shares in Thousands, $ in Thousands	3 Months Ended
	Mar. 31, 2026	Mar. 31, 2025
Operating expenses:
Research and development	$ 66,507	$ 42,867
General and administrative	22,872	13,444
Total operating expenses	89,379	56,311
Loss from operations	(89,379)	(56,311)
Interest and other income, net	13,601	9,576
Loss before provision for income taxes	(75,778)	(46,735)
Provision for income taxes	190	98
Net loss attributable to ordinary shareholders	$ (75,968)	$ (46,833)
Net loss per share attributable to ordinary shareholders, basic	$ (0.35)	$ (0.27)
Net loss per share attributable to ordinary shareholders, diluted	$ (0.35)	$ (0.27)
Weighted-average ordinary shares used in computing net loss per share attributable to ordinary shareholders, basic	217,326	172,051
Weighted-average ordinary shares used in computing net loss per share attributable to ordinary shareholders, diluted	217,326	172,051
Other comprehensive loss:
Unrealized loss on investments, net	$ (3,249)	$ (99)
Total other comprehensive loss	(3,249)	(99)
Comprehensive loss	$ (79,217)	$ (46,932)