Business and Organization (Details) shares in Millions, $ in Millions		1 Months Ended	3 Months Ended
	Apr. 29, 2022 USD ($) shares	Jun. 30, 2021 facility	Mar. 31, 2022 employee	Sep. 30, 2021 USD ($)	Dec. 31, 2021 USD ($)
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of sales employees | employee			250
Gain on sale of assets				$ 31.5
Detect Genomix | Sema4 | Subsequent Event
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Payments to acquire business	$ 150.0
Number of shares issued in business combination (in shares) | shares	80.0
Additional revenue-based milestones	$ 150.0
Revenue-based milestone period	2 years
Total upfront consideration transferred	$ 322.0
Total aggregate consideration	$ 472.0
Disposal Group, Disposed of by Sale, Not Discontinued Operations | Waterford, Ireland Facility
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Number of facilities sold | facility		1
Consideration from sale of facility					$ 65.0