Summary of Significant Accounting Policies - Summary of Revenue from Contracts with Customers by Payor Type (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Dec. 31, 2022	Sep. 30, 2022	Jun. 30, 2022	Mar. 31, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers by payor type	$ 67,704	$ 105,655	$ 125,341	$ 320,268	$ 251,671	$ 227,868	$ 153,616	$ 359,429	$ 618,968	$ 992,584	$ 421,712
Accounting Standards Update 2014-09
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers by payor type									618,968	992,584	421,712
Accounting Standards Update 2014-09 | Clinical Insurance Contracts
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers by payor type									377,873	555,762	257,587
Accounting Standards Update 2014-09 | Clinical Institutional Contracts
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers by payor type									239,961	435,688	163,083
Accounting Standards Update 2014-09 | Clinical Patient Contracts
Disaggregation Of Revenue [Line Items]
Revenue from contracts with customers by payor type									$ 1,134	$ 1,134	$ 1,042