Collaboration, License, and Other Agreements - Schedule of Contract Balances, Roche Collaboration (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Disaggregation of Revenue [Line Items]
Accounts receivable, net	$ 6,036.5	$ 4,114.7
Roche Collaboration Agreement
Disaggregation of Revenue [Line Items]
Accounts receivable, net	0.0	77.1
Accrued expenses and other current liabilities	$ 268.8	$ 0.0

Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current.

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