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Segment and Geographic Information - Company's Segment Information (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023	Dec. 31, 2022
Segment Reporting Information [Line Items]
Revenue	$ 739,016	$ 563,948	$ 449,538
Net loss	(436,373)	(479,449)	(654,588)
Reportable Segment
Segment Reporting Information [Line Items]
Revenue	739,016	563,948	449,538
Cost of precision oncology testing	254,551	200,202	141,691
Cost of development services and other	24,886	18,863	8,126
Research and development expense	295,866	329,826	341,650
Sales and marketing expense	328,064	270,132	273,961
General and administrative expense	133,352	129,247	121,023
Other segment items	138,670	95,127	217,675
Net loss	$ (436,373)	$ (479,449)	$ (654,588)

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