Revenue Recognition - Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2023	Mar. 31, 2022
Disaggregation of Revenue [Line Items]
Total Revenue	$ 137,220	$ 117,169
Clinical Services
Disaggregation of Revenue [Line Items]
Total Revenue	114,869	98,791
Clinical Services | Client direct billing
Disaggregation of Revenue [Line Items]
Total Revenue	76,823	65,014
Clinical Services | Commercial Insurance
Disaggregation of Revenue [Line Items]
Total Revenue	21,355	18,288
Clinical Services | Medicare and Medicaid
Disaggregation of Revenue [Line Items]
Total Revenue	16,587	15,465
Clinical Services | Self-Pay
Disaggregation of Revenue [Line Items]
Total Revenue	104	24
Pharma Services
Disaggregation of Revenue [Line Items]
Total Revenue	$ 22,351	$ 18,378