Revenue Recognition - Schedule of Disaggregation of Revenue Disaggregation of Revenue (Details) - USD ($) $ in Thousands	12 Months Ended
	Dec. 31, 2024	Dec. 31, 2023
Disaggregation of Revenue [Line Items]
Total	$ 305,450	$ 202,566
GeneDx
Disaggregation of Revenue [Line Items]
Total	302,293	194,376
Other
Disaggregation of Revenue [Line Items]
Total	3,157	8,190
Diagnostic test revenue
Disaggregation of Revenue [Line Items]
Total	302,157	195,654
Diagnostic test revenue | GeneDx
Disaggregation of Revenue [Line Items]
Total	299,000	187,464
Diagnostic test revenue | Other
Disaggregation of Revenue [Line Items]
Total	3,157	8,190
Patients with third-party insurance
Disaggregation of Revenue [Line Items]
Total	234,699	134,491
Patients with third-party insurance | GeneDx
Disaggregation of Revenue [Line Items]
Total	231,542	126,265
Patients with third-party insurance | Other
Disaggregation of Revenue [Line Items]
Total	3,157	8,226
Institutional customers
Disaggregation of Revenue [Line Items]
Total	65,115	59,497
Institutional customers | GeneDx
Disaggregation of Revenue [Line Items]
Total	65,115	59,497
Institutional customers | Other
Disaggregation of Revenue [Line Items]
Total	0	0
Self-pay patients
Disaggregation of Revenue [Line Items]
Total	2,343	1,666
Self-pay patients | GeneDx
Disaggregation of Revenue [Line Items]
Total	2,343	1,702
Self-pay patients | Other
Disaggregation of Revenue [Line Items]
Total	0	(36)
Other
Disaggregation of Revenue [Line Items]
Total	3,293	6,912
Other | GeneDx
Disaggregation of Revenue [Line Items]
Total	3,293	6,912
Other | Other
Disaggregation of Revenue [Line Items]
Total	$ 0	$ 0