Supplemental Cash Flow Information (Details) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Condensed Cash Flow Statements, Captions [Line Items]
Interest	$ 63.7	$ 27.1	$ 20.1
Income taxes, net	90.6	83.8	64.3
Capital leases	51.9	51.7	29.4
Payment of acquisition-related obligation	(17.6)	(90.9)	0.0
Restricted cash	136.1	112.6
Cash and cash equivalents	343.4	614.3
Cash, Cash Equivalents, and Restricted Cash	479.5	726.9	$ 239.0	$ 198.3
Cash from Short Term Borrowings
Condensed Cash Flow Statements, Captions [Line Items]
Restricted cash	10.5	27.0
Cash Held From Customers
Condensed Cash Flow Statements, Captions [Line Items]
Restricted cash	90.3	74.7
Deposits Liability
Condensed Cash Flow Statements, Captions [Line Items]
Restricted cash	35.3	10.9
Maco
Condensed Cash Flow Statements, Captions [Line Items]
Payment of acquisition-related obligation	$ (16.3)	$ (90.9)

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Amount equal to the present value (the principal) at the beginning of the lease term of minimum lease payments during the lease term (excluding that portion of the payments representing executory costs such as insurance, maintenance, and taxes to be paid by the lessor, together with any profit thereon) net of payments or other amounts applied to the principal through the balance sheet date.

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Amount of currency on hand as well as demand deposits with banks or financial institutions. Includes other kinds of accounts that have the general characteristics of demand deposits. Also includes short-term, highly liquid investments that are both readily convertible to known amounts of cash and so near their maturity that they present insignificant risk of changes in value because of changes in interest rates. Excludes cash and cash equivalents within disposal group and discontinued operation.

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The amount of cash paid during the current period to foreign, federal, state, and local authorities as taxes on income, net of any cash received during the current period as refunds for the overpayment of taxes.

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