Lease Obligations (Finance Leases) (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2019	Sep. 30, 2019	Dec. 31, 2018
Leases [Abstract]
Finance leases, assets, gross	$ 415.5	$ 415.5	$ 337.6
Finance leases, assets, net	340.4	340.4	$ 246.8
Finance leases, assets, depreciation	$ 13.1	$ 34.2

Amount before accumulated depreciation of leased physical assets used in the normal conduct of business to produce goods and services.

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 30
-Section 45
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- Definition

Amount of lessee's right to use underlying asset under finance lease.

+ References

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-Publisher FASB
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- Definition

Amount of amortization expense attributable to right-of-use asset from finance lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- References

No definition available.

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