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Leases - Schedule of Consolidated Balance Sheet Related To Leases (Detail)
$ in Millions
Mar. 31, 2019
USD ($)
Assets  
Operating leases $ 619.3
Finance leases 18.6 [1]
Total lease assets 637.9
Current  
Operating leases 137.8
Finance leases 3.4
Noncurrent  
Operating leases 547.6
Finance leases 11.9
Total lease liabilities $ 700.7
[1] Net of accumulated depreciation of $4.6 million.