Leases (Assets and Liabilities) (Details) $ in Millions	Aug. 31, 2019 USD ($)
Leases [Abstract]
Operating lease right-of-use assets, net	$ 81.7
Finance Lease, Right-of-Use Asset	10.5
Total lease assets	92.2
Operating lease liabilities	24.1
Operating lease liabilities	61.1
Total operating lease liabilities	85.2
Finance Lease, Liability, Current	1.8
Finance Lease, Liability, Noncurrent	9.3
Total finance lease liabilities	11.1
Total lease liabilities	$ 96.3