Amount of revenue, fees and commissions earned from transactions between (a) a parent company and its subsidiaries; (b) subsidiaries of a common parent; (c) an entity and trusts for the benefit of employees, for example, but not limited to, pension and profit-sharing trusts that are managed by or under the trusteeship of the entity's management; (d) an entity and its principal, owners, management, or members of their immediate families; and (e) affiliates.

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+ Details

Related Party Transactions (Details) - Affiliated Entity - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2022	Jun. 30, 2021	Jun. 30, 2022	Jun. 30, 2021
Strategic Alliance With Inivata Limited
Related Party Transaction [Line Items]
Payments to related party		$ 0.4		$ 0.8
Pharma Service Contracts with CytomX Therapeutics, Inc.
Related Party Transaction [Line Items]
Revenue from related party	$ 0.4	$ 0.1	$ 0.5	$ 0.3