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Leases - Other Lease Information (Details) $ in Millions	3 Months Ended
	Mar. 31, 2019 USD ($)
Leases [Abstract]
Payments for operating leases included in cash from operating activities	$ 23.0
Payments for finance leases included in cash from operating activities	2.2
Payments for finance leases included in cash from financing activities	26.2
Assets obtained in exchange for lease obligations: operating leases	14.5
Assets obtained in exchange for lease obligations: finance leases	$ 39.9
Weighted average remaining lease term (in years) - operating leases	9 years 8 months 12 days
Weighted average remaining lease term (in years) - finance leases	2 years 9 months 18 days
Weighted average discount rate - operating leases	4.40%
Weighted average discount rate - finance leases	5.10%

X

- Definition

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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