Revenue - Narrative (Details) - USD ($) $ in Millions	9 Months Ended
Sep. 30, 2021	Dec. 31, 2020
Disaggregation of Revenue [Line Items]
Percentage of revenue from service contracts and post-shipment obligations (approximate)	3.00%
Contract liability	$ 19.3	$ 30.9
Increase (decrease) in net contract liabilities	(11.6)
Revenue recognized	27.2
Increase in current year deferrals, net	17.1
Disposal Group, Disposed of by Sale, Not Discontinued Operations \| Consumer Analytics Solutions Business
Disaggregation of Revenue [Line Items]
Increase (decrease) in net contract liabilities	$ (1.5)

Percentage Of Revenue From Service Contracts And Post-Shipment Performance Obligations

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- Definition

Amount of obligation to transfer good or service to customer for which consideration has been received or is receivable.

+ References

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- Definition

Amount of revenue recognized that was previously included in balance of obligation to transfer good or service to customer for which consideration from customer has been received or is due.

+ References

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

No definition available.

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Amount of increase (decrease) in obligation to transfer good or service to customer for which consideration has been received or is receivable.

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