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Leases - Additional cash flow information (Details) $ in Millions	12 Months Ended
	Sep. 30, 2020 USD ($)
Cash paid for amounts included in the measurement of lease liabilities:
Operating cash flows from operating leases	$ 208.7
Operating cash flows from finance leases	1.8
Financing cash flows from finance leases	14.7
Right-of-use assets obtained in exchange for new operating leases	126.9
Right-of-use assets obtained in exchange for new operating leases	$ 26.4

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Amount of interest paid on finance lease liability.

+ References

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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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