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Revenue - Revenues by Geographic Areas (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Revenues by Geographic Areas [Line Items]
Total revenues	$ 1,417.0	$ 1,367.0
United States
Revenues by Geographic Areas [Line Items]
Total revenues	1,187.8	1,166.7
Canada and Mexico
Revenues by Geographic Areas [Line Items]
Total revenues	176.8	158.4
North America
Revenues by Geographic Areas [Line Items]
Total revenues	1,364.6	1,325.1
All other foreign countries
Revenues by Geographic Areas [Line Items]
Total revenues	$ 52.4	$ 41.9

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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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