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Revenue from Contracts with Customers Contract Assets and Liabilities (Details) - USD ($) $ in Millions	6 Months Ended
	Jun. 30, 2021	Dec. 31, 2020
Accounts receivable, net	$ 798.1	$ 793.2
Deferred revenue, current	24.5	23.4
Deferred revenue, noncurrent	89.9	$ 91.0
Increase (decrease) in accounts receivable	4.9
Contract liability, current, increase (decrease)	1.1
Contract liability, noncurrent, increase (decrease)	(1.1)
Contract with customer, liability, revenue recognized	$ 10.0

X

- Definition

Contract Liabilities Increase (Decrease), Noncurrent, Net of Contract Liabilities Amortized into Revenue

+ References

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- Definition

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+ References

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X

- 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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-Publisher FASB
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-Section 50
-Paragraph 8
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- Definition

Amount of deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable, classified as current.

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- Definition

Amount of deferred income and obligation to transfer product and service to customer for which consideration has been received or is receivable, classified as noncurrent.

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- Definition

The increase (decrease) during the reporting period in the total amount due within one year (or one operating cycle) from all parties, associated with underlying transactions that are classified as operating activities.

+ References

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The total amount due to the entity within one year of the balance sheet date (or one operating cycle, if longer) from outside sources, including trade accounts receivable, notes and loans receivable, as well as any other types of receivables, net of allowances established for the purpose of reducing such receivables to an amount that approximates their net realizable value.

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