Sales - Additional Information (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2019	Dec. 31, 2018
Capitalized Contract Cost [Line Items]
Contract assets	$ 79.0	$ 32.0
Revenue-related contract assets	147.0	144.0
Additional contract liabilities	509.3	$ 380.7
Contract liabilities, revenue recognized	$ 226.0
Minimum
Capitalized Contract Cost [Line Items]
Amortization period of deferred sales-related commissions	3 years
Maximum
Capitalized Contract Cost [Line Items]
Amortization period of deferred sales-related commissions	8 years
Maximum \| Deferred Sales Commissions
Capitalized Contract Cost [Line Items]
Amortization period of deferred sales-related commissions	1 year
Acquisitions, 2019
Capitalized Contract Cost [Line Items]
Additional contract liabilities	$ 92.0

Amortization period of cost capitalized in obtaining or fulfilling contract with customer, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

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Amount, after accumulated amortization and accumulated impairment loss, of asset recognized from cost incurred to obtain or fulfill contract with customer.

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Amount, after allowance for credit loss, of right to consideration in exchange for good or service transferred to customer when right is conditioned on something other than passage of time, classified as current.

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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.

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