Revenue Recognition - Schedule of Disaggregation of Revenue (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Disaggregation of Revenue [Line Items]
Total revenues	$ 309,893	$ 442,408	$ 639,111	$ 987,573
Services
Disaggregation of Revenue [Line Items]
Total revenues	186,804	397,197	473,402	904,149
Healthcare insurers
Disaggregation of Revenue [Line Items]
Total revenues	76,442	109,084	172,269	273,913
Government payers
Disaggregation of Revenue [Line Items]
Total revenues	25,659	57,611	53,263	131,269
Client payers
Disaggregation of Revenue [Line Items]
Total revenues	80,931	225,936	240,021	488,845
Patients
Disaggregation of Revenue [Line Items]
Total revenues	$ 3,772	$ 4,566	$ 7,849	$ 10,122