Impact of COVID-19 (Details) $ in Millions	6 Months Ended
	Jun. 30, 2022 USD ($)
Routine Clinical Test
Unusual or Infrequent Item, or Both [Line Items]
Change in testing volume (as a percent)	26.20%
Services
Unusual or Infrequent Item, or Both [Line Items]
Increase (decrease) in revenue	$ (430.7)
COVID-19 Testing | COVID-19 Testing Revenue Concentration Risk | Revenue Benchmark
Unusual or Infrequent Item, or Both [Line Items]
Concentration risk (as a percent)	5.70%
COVID-19 Testing | COVID-19 Testing Revenue Concentration Risk | Accounts Receivable
Unusual or Infrequent Item, or Both [Line Items]
Concentration risk (as a percent)	2.00%