Segment (Tables)

12 Months Ended

Dec. 31, 2025

Segment Reporting [Abstract]

Schedule of Reporting Segment

The measure of segment assets is reported on the consolidated balance sheets as total assets.

	Year Ended December 31,
	2025		2024		2023
Revenue	$	36	$	61	$	130
Less:
Technical operations	47,202		46,102		49,851
Clinical development	36,671		38,561		27,241
Support functions	25,737		29,870		34,096
Lease costs	16,643		16,885		14,788
Operations management	13,106		14,145		22,814
Research activities	11,038		25,284		33,309
Other segment items(1)	124,087		172,208		52,663
Net loss	$	274,448	$	342,994	$	234,632

1.Includes stock-based compensation, depreciation, other operating income, net, acquired in-process research and development, impairment of long-lived assets, interest income, net, other (expense) income, net, and impairment of other investments.