Non-Cash Share-Based Compensation - Non-Cash Expense (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2024	Jun. 30, 2023	Jun. 30, 2024	Jun. 30, 2023
Share-Based Compensation
Total non-cash share-based compensation expense	$ 12,232	$ 4,695	$ 47,109	$ 8,460
Research and development expenses
Share-Based Compensation
Total non-cash share-based compensation expense	7,071	2,457	28,362	4,698
General and administrative expenses
Share-Based Compensation
Total non-cash share-based compensation expense	$ 5,161	$ 2,238	$ 18,747	$ 3,762