Segment and Geographic Information - Schedule of reported segment revenue, segment loss, and significant segment expenses (Details) - USD ($) $ in Thousands		3 Months Ended		9 Months Ended
		Sep. 30, 2025	Sep. 30, 2024	Sep. 30, 2025	Sep. 30, 2024
Segment Reporting [Abstract]
Revenue	[1]	$ 14,495	$ 25,709	$ 52,303	$ 67,814
Payroll and related costs		16,528	17,376	52,589	51,391
Lab supplies and outside services		3,664	1,751	10,595	9,202
Facility costs		2,577	2,539	7,329	7,681
Professional services		2,969	1,924	8,341	7,320
Repairs and maintenance		2,441	2,076	6,381	5,926
Change in fair value of the Tempus Warrants		0	26,014	0	18,274
Depreciation and amortization		2,405	2,758	7,523	8,398
Other segment items	[2]	7,243	11,744	22,588	28,360
Interest income		(1,680)	(1,384)	(5,585)	(3,879)
Net loss		$ (21,652)	$ (39,089)	$ (57,458)	$ (64,859)

[1] Includes related party revenue of $1.1 million and $3.5 million for the three and nine months ended September 30, 2025, respectively.

[2] (a) Other segment items included in segment net loss include materials cost related to cost of revenue, marketing expenses, office expenses, foreign currency exchange gain and losses, and other overhead expenses.