Revenue - Life Sciences Segment Disaggregation of Revenue (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Jun. 30, 2021	Jun. 30, 2020	Jun. 30, 2021	Jun. 30, 2020
Segment Reporting Information [Line Items]
Revenue	$ 243.8	$ 181.8	$ 415.6	$ 368.4
Total revenue	243.8	181.8	415.6	368.4
Life Sciences
Segment Reporting Information [Line Items]
Total revenue	1.2	0.0	1.2	0.0
Systems revenue \| Life Sciences
Segment Reporting Information [Line Items]
Revenue	$ 1.2	$ 0.0	$ 1.2	$ 0.0

Amount, excluding tax collected from customer, of revenue from satisfaction of performance obligation by transferring promised good or service to customer. Tax collected from customer is tax assessed by governmental authority that is both imposed on and concurrent with specific revenue-producing transaction, including, but not limited to, sales, use, value added and excise.

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- Definition

Amount of revenue recognized from goods sold, services rendered, insurance premiums, or other activities that constitute an earning process. Includes, but is not limited to, investment and interest income before deduction of interest expense when recognized as a component of revenue, and sales and trading gain (loss).

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