Revenue Recognition - Disaggregation (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2024	Mar. 31, 2023
Disaggregation of Revenue [Line Items]
Total revenues	$ 367,741	$ 241,756
United States
Disaggregation of Revenue [Line Items]
Total revenues	359,413	233,254
Americas, excluding U.S.
Disaggregation of Revenue [Line Items]
Total revenues	1,481	1,158
Europe, Middle East, India, Africa
Disaggregation of Revenue [Line Items]
Total revenues	5,178	5,196
Asia Pacific and Other
Disaggregation of Revenue [Line Items]
Total revenues	1,669	2,148
Insurance carriers
Disaggregation of Revenue [Line Items]
Total revenues	341,028	210,378
Laboratory partners
Disaggregation of Revenue [Line Items]
Total revenues	20,276	22,805
Patients
Disaggregation of Revenue [Line Items]
Total revenues	6,437	8,573
Licensing and other
Disaggregation of Revenue [Line Items]
Total revenues	$ 3,069	$ 3,959