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Leases - Schedule Of Supplemental Cash Flow Related To Leases (Detail) $ in Millions	3 Months Ended
	Mar. 31, 2019 USD ($)
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 39.5
Operating cash flows from finance leases	0.2
Financing cash flows from finance leases	0.7
Right Of Use Assets Obtained In Exchange For Lease Liabilities [Abstract]
Operating leases	26.5
Finance leases	$ 6.7

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Amount of interest paid on finance lease liability.

+ References

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-Publisher FASB
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-SubTopic 20
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Amount of cash outflow for principal payment on finance lease.

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Amount of cash outflow from operating lease, excluding payments to bring another asset to condition and location necessary for its intended use.

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Amount of increase in right-of-use asset obtained in exchange for operating lease liability.

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