Adaptimmune Quarterly report pursuant to Section 13 or 15(d)

Share-based compensation - Share-based Compensation Expense (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Sep. 30, 2024	Sep. 30, 2023	Sep. 30, 2024	Sep. 30, 2023
Total share-based compensation expense included in the consolidated statements of operations
Total share-based compensation expense	$ 3,054	$ 3,183	$ 9,215	$ 8,696
Research and development
Total share-based compensation expense included in the consolidated statements of operations
Total share-based compensation expense	1,069	789	2,878	2,190
General and administrative
Total share-based compensation expense included in the consolidated statements of operations
Total share-based compensation expense	$ 1,985	$ 2,394	$ 6,337	$ 6,506